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🐈 | [Kitakaruizawa] A special accommodation for Valentine's Day at the villa resort "Asama Sorayama Nozomi" where you can stay with your dog ...


[Kitakaruizawa] A special accommodation for Valentine's Day at the villa resort "Asama Sorayama Nozomi" where you can stay with your dog ...

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Why don't you spend an adult Valentine's day with sweets while looking at Mt. Asamayama, which is called "gateau chocolate" when it snows in winter.

At Kitakaruizawa's villa resort "Asama Sorayama Nozomi", a private space surrounded by nature is special and excellent ... → Continue reading


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Wikipedia related words

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Chocolate cake

Chocolate cake(English: chocolate cake) Isチ ョ コ レ ー トorcocoa powderIs included in the main materialscakeIs. Basically, mix the dough of the cake with cocoa powder and bake, and then add chocolate.creamPainted, chocolate surfacecoatingThere are various ways to make things such as those that you made. Even if the material contains chocolate, using a small amount as a decoration is not a chocolate cake (however, sprinkling cocoa powder on the surface may be used as a finish). Generally, the entire cake is chocolate in color due to the color of the ingredients. Chocolate cakeDessertFromBirthday cake,Christmas cakeUp to various demands.French"Chocolate cakeComes fromGateau au chocolatAlso known as (Gato O Chocolat).


CacaoIs of major originCentral americaOnce used as a drink, it was never used for food such as cakes. Cacao16st centuryToEuropeIt was only used as a drink and medicine for a while after being introduced to.

On record, the first chocolate cake appears18st century.1719/In the cooking notebook left by the aristocrat Conrad Hugger, who is known for his culinary research, "ChocolateTorte"ofRecipesIs recorded[1].. 1774,Belgium Ofブ リ ュ ッ セ ルPublished in Munon (Menon) Cookbook "Bourgeois woman cook (La Cuisinière Bourgeoise)” (First edition 1746,France[2]Some of the "chocolateBiscuitIs introduced. this is,Wheat flourMix the same amount of finely crushed chocolate withmeringueIt is a baked confectionery similar to Biscuit a la Cuyère that is inflated by adding.A small cake molded with a spoon (Cuillère) like Biscuit a la Cuillère, and a round manke type[3]It is also said to be a type of cake that is cut into pieces using. These are also the first examples of chocolate being used in a confectionery ingredient.[4].

19st centuryEntered in 1832Austria OfViennaMade inSachertorteThere is. Sachertorte was so well received that it would have been well received all over Vienna the next day.[5].. Sachertorte is still called the "King of Cakes"[6].

Since then, various types of chocolate cake have been produced all over the world.


There are various ways to make chocolate cake, but there are the following roughly classified according to how to use cacao. Instead of using only one method, they are often combined to make one type of cake.

  • A method in which cocoa powder is mixed with the dough of grain flour such as flour and baked. With the basic method that has been used since ancient times,Butter cake(en) Andsponge cakeAnd variations. Steam and heat instead of bakingSteamed cakeThere is also.
  • Fine solid chocolate (Chocolate chips) Is mixed with the dough.
  • Chocolate cream (Ganache) How to paint and fill.
  • How to coat the surface with chocolate. Grasage au chocolate(Icing au chocolat). Don't just melt and sprinkle chocolatesugarHow to use a sugar solution that has been boiled down in hot water withCacao massTheFondantThere is also a method of coating with chocolate fondant added to (sugar solution kneaded for sugar coating).
  • How to sprinkle cocoa powder on the surface. Used as a finish.

The chocolate used as a material for cakes is for confectionery that is slightly different from the solid chocolate that is eaten as it is. In generalSugarIs less,Cacao minutesIs high in content. Especially for fondant and fillingCouverture chocolateLow in sugar calledCocoa butterThere are many standards, which isMelting pointIs characterized by low[7].. In general, each family has its own recipe, and it is popularly known as a "grandmother's cake" to Parisians.[8].

Types of chocolate cake

Various kinds of chocolate cakes are made mainly in Europe and America. The following are typical examples. Even if there is no other special name,chiffon cake,Frank Full Turkrants,KugulovAs a variation, there are many chocolate-flavored ones (However, even if the material contains chocolate, just using a small amount as a decoration is not a chocolate cake). In addition,JapanGateau au chocolat (French : Chocolate cake) Is sometimes used like the type name of chocolate cake[By whom?], In the original French, it is not a word for a particular type of cake. "Cake"Is baked goods and cakes,"au(a+le)” means “...”, “...de”, etc.chocolate"" means chocolate (chocolate), and is a term that refers to baked chocolate confectionery and chocolate cakes in general.JapaneseThen, it may be used as a generic term for French traditional chocolate cake.[9].. It is also sometimes referred to by the more accented "Japanese French" name, "gateau chocolate."

The United States of America







  1. ^ Aihara, p.24
  2. ^ The latest version was published by Nabu Press in January 2010. French.ISBN-978 1142221812
  3. ^ Manke is a type of biscuit that uses meringue, and is a biscuit de savoie ([1]) With buttersponge cake.. The Manke type is a baking type with a trapezoidal cross section for Manke. French, meaning "unfinished"MonquéDerived from.
  4. ^ Tousent-Sama, pp.105-106
  5. ^ Tousent-Sama, pp.361-362
  6. ^ Tousent-Sama, p.105
  7. ^ Tousent-Sama, p.110
  8. ^ Yukiko Omori "French Confectionery Picture Book: Names and Origins of Confectionery" Page 34 Sekai Bunkasha
  9. ^ Nemido Shuppan editorial department (ed.) "Encyclopedia of chocolate-all the chocolate loved all over the world" Nemido Shuppan, 2002, p.155.


  • Kyoko Aihara "European sweets travelogue" Japan Broadcast Publishing Association, 2002.
  • Magronne Tousent-Sama (Author), Harumi Yoshida (Translation) "History of sweets" Kawade Shobo Shinsha, 2005.
  • Helga Rubinstein (Author),Kuniko Nonaka"Chocolate Book" Heibonsha, 1990.

Mt. Asamayama

Mt. Asamayama(Asayama)NaganoKitasaku DistrictKaruizawaas well as the MiyotaGunmaAgatsumaTsumagoi VillageOn the border withAndesiteQualityelevation2,568Meter (m) OfStratovolcano..The mountain bodyconeIn the form ofcalderaIs also formed and livelyactive volcanoKnown as.


In the surrounding area for hundreds of thousands of yearsVolcanoThe activity is active, Mt. AsamayamaMt. EboshidakeTogether with three volcanic bodies such asAsama mountain rangeOrAsama Eboshi Volcanic GroupCollectively called.So fareruptionMountain collapseRepeatedly, it became the present appearance.The traces of large-scale collapse of the mountain body and the outflow of collapsed soil are far away in Gunma Prefecture.Maebashi OfplateauThick on top etc.SedimentRemains as.It is Maekake volcano that is currently erupting.From the mountaintop craterSmokeThere is a complex caldera around it, and Maekakeyama is on the west side of the inner outer ring mountain.The caldera on the north side has collapsed due to the lava flow that flowed from the top of the mountain to "Onioshidashi Rock".On the outer caldera,Mt. Kurofuyama,Asan, Kengamine, etc.Japanese Meteorological AgencyIs designated as an active volcano of rank A as "an active volcano with a particularly high activity of 100 years or 1 years".[2].

1949 years(Showa24) On September 9th, the mountain areaJoshinetsu Kogen National ParkSpecified in[3].. 2007,Top XNUMX geological features in JapanWas selected.Nihon Hyaku Meizan(Japan's hundred famous mountains)[4]as well as the Hana no Hyakumeizan(One hundred mountains of flowers)[Annotation 2]Has been selected.

Volcanic activity

Activity history of Mt. Asamayama

It is classified into three types according to the location of the crater and the nature of the lava.[6].

Black spot stage (about 13-2.6 years ago)
basaltAndesite and andesitic lava.The current Mt. Kurofuyama is a horseshoe-shaped caldera that opens to the east.This horseshoe-shaped caldera is about 2.4 to 2.3 years ago in Tsukahara, Shiozawa, and Okuwa.Debris avalancheIs believed to have been formed by the outbreak of.The volume of the collapsed mountain body is 4 km3Is estimated to be[7], Centered near the current Yunohira before the formation of the calderaFire conduitWith about 2,800-2,900mMount FujiIt is believed to have been a type of stratovolcano.Traces of mudflow generated at this time are around Maebashi Plateau and Mt. AsamayamaFlow mountainCan be confirmed as.Also,Minami KaruizawaThen in this mud flowYukawaWas dammed up and a large lake was formed (Minami Karuizawa Lake stratification).Fang lava group, Kengamine lava group, Mitsuone lava group, etc. as lava flow,Volcanic ashAsNorthern Kanto loam layerItahana brownpumiceForming a group (BP / F)[8]..There is no activity between about 8 to 7 years ago and about 4 to 3 years ago, and it is in a dormant period.
Buddha rock period (about 2.6 to about 1.3 years ago)
Looking at Mt. Asamayama from the south, you can see the bulge on the right side of the mountain body.This is Buddha Rock Volcano. The activity started after the collapse of the Mt. Kurofuyama mountain body, and the altitude of the mountain body at its peak exceeded 2,000 m above sea level.Rich in viscosityEnstatite-AmphiboleDay sightQuality and rhyolite[9]Thick lava flow repeatedly flowed out, forming a gently sloping volcanic body.Adjacent to KaruizawaHanareyamaWas formed by an eruption about 2.6 years ago, the earliest of the Buddha rock period.Lava domeIs. Also,Shiraito FallsFrom the pumice layer of the Buddhist rock period deposited on the lake strataspringare doing.Gunma PrefectureMaebashi OfIwagami Inari ShrineIt is in"Iwagami's flying stoneIs estimated to have been reached by the mudflow that occurred in the collapse about 2 years ago.[10].
About 1.6 years ago, the Itahana Yellow Pumice Formation (YP) of the Northern Kanto Loam Formation andKomorothe firstPyroclastic flow, Colorful volcanic ash, AsamaKusatsuTephraThe largest eruption among Asama volcanoes (total eruption volume 4.38 DRE km)3)There has occurred[8].Manza KazawaguchiSeen aroundbeigeThe colored cliff is the ejecta at this time.It is believed that this eruption formed a caldera.In addition, the total amount of ejecta from the eruption at this time was 10.95km.3Volcanic Explosivity Index: VEI is 6, this isMount PinatuboTotal amount of ejecta from the 1991 eruption (10km)3), It was a large scale.
Pre-season (about 1.3 years ago-present)
It is an andesitic compound volcano, and after the activity of Buddhist volcano, eruption started at Asama Maekake volcano (Asama volcano in a narrow sense), which is the middle point between Mt. Kurofuyama and Buddhist volcano. Thirteen pumice fall layers have been identified, with intervals between large-scale eruptions believed to be 13-700 years.[11]..Large eruptions of the 4th century, 1108, and 1783 are known, accompanied by lava and pyroclastic flows. Eruption of 1108 (total amount of ejecta 1.55 DRE = 3.875km)3) Is 1783 (total amount of ejecta 0.73km)3A small caldera-like topography was formed on the mountaintop on a scale about five times that of the eruption of).Currently, the activity is relatively calm, but there is no sign that the activity has declined.[12].
In historical books, etc., it erupted in the following years (TaiziHas a damage record).
  • 685/,1108/, 1281 ?, 1427 ?, 1527-1528,1532/, 1582 ?,1596/, 1598, 1604, 1605, 1609, 1644-1645,1647-1649 year、1651-1652年、1653または1655-1659年、1669年、1704年、1706年、1708-1711年、1717-1718年、1720-1723 year, 1728-1729, 1732-1733,1754/, 1776-1777,1783 years(Tenmei eruption-Onioshidashi,1803/, 1815, 1869, 1875, 1879, 1889[13], 1894, 1899, 1900, 1901, 1902, 1904, 1907, 1908 ?,1909/, 1910,1911-1914 year, 1916, 1917, 1919,1920/, 1921, 1922, 1927,1928/, 1929,1930/,1931/, 1932, 1934,1935/,1936/, 1937, 1938, 1939, 1940, 1941, 1942, 1944, 1945, 1946,1947/, 1951, 1952, 1953, 1954, 1955,1958/, 1959,1961/、1965年、1972年、1973年、1982年、1983年、1990年、2004年、2008年、2009年、2015年、2019年

Major unrecorded eruptions

  • 685/(Emperor TenmuAugust 14:Asuka Period) 『Japanese calligraphy]Hakuho Earthquake5 months laterShinano countryThere is a description that ash fell and vegetation died in (currently Nagano Prefecture). It was supposed to be an eruption of Mt. Asamayama[14], It is not specifically described as Mt. Asamayama, but rather from the wind direction to the west, for exampleMt. Niigatayakeyama,Mt. YakedakeIt is said that there is a possibility of eruption such as[15].
  • 1108 years(Kajo3 years,TenrenFirst year:Heian period) Tenjin large-scale eruption.The eruption site is Mt. Maekake, a large eruption with an estimated 30 billion tons of ejecta.Volcanic Explosivity Index: VEI5.Ueno country(Currently Gunma Prefecture) Volcanic products piled up all over the area, causing a devastating blow to the fields. "Middle right』Recorded in.According to the article on September 9, 5st year of Tennin, 40 years before this yearCalendarThe eruption increased during the year (1065-1069), and after that, the eruption increased slightly, and on July 7, the same year, a large eruption suddenly occurred.It is written that the eruption smoke soared high in the sky, the ejecta spread all over the country of Ueno, and all the fields were buried.[16]..The fields developed for reconstructionAustralianIs privatized and furtherManorHas evolved into.This eruption was an opportunity to promote the conversion of Ueno to a manor.Also on the Nagano sidePyroclastic flow(Oiwake pyroclastic flow) runs down about 15km,Yukawa, It has reached the vicinity of Ishitoge, Komoro City, and there is a possibility that multiple settlements at the foot of the mountain have been buried.It is said that it was a larger eruption than the large eruption of Tenmei.Recently, it has been suggested that the eruption of Mt. Asamayama may have been the cause of crop failures and famine due to extreme weather events, heavy rains and cold summers in Europe in the early 12th century.[17] .
  • 1128/ Daiji3 years large scalemagmaThe eruption and eruption location is Mt. Maekake.Volcanic Explosivity Index: VEI4.
  • 1532/ Enjoyment4 years The eruption site is near the summit.The volcanic bombcraterIt has fallen over 8km around the area, and "Nanahiroishi" with a diameter of 25m or more remains.Volcanic Explosivity Index: VEI2.
  • 1582/ Tensho10 『Tomonin Diary"" ""Japanese history, Etc., Mt. Asamayama erupted on February 2th,京都It is said that it was possible to observe even from[18]..This eruption is justOda NobunagaThe army ofTakeda RyoInvasion ofKoshu conquest) Was started shortly after, so in Takeda territoryNational peopleAnd the lordKatsuyori TakedaZhucheng in the Takeda territory fell without resistance to the Oda army on the day of this eruption.[19].
  • 1721/ Kyoho6 years pyroclastic material descent.Fifteen climbers were killed and one seriously injured due to a volcanic bomb.Volcanic Explosivity Index: VEI15.
  • February 1783, 8 (Tenmei3/May 7Tenmei eruption Total amount of ejecta 4.5 × 108m3, Volcanic Explosivity Index: VEI4.
    • Mt. Asamayama, who resumed activities on April 4 (the lunar calendar, the same applies to this item below), continues to work on May 9 and June 5, repeating eruptions and lulls every month. It was.
    • From June 6th, eruptions and explosions began to repeat every day.As the days went by, the intervals became shorter and the intensity increased.Edo,KansaiBut the doorShojiVibrated.
    • The eruption that lasted for three days from July 7 caused a catastrophe.First, Azuma in the northeast and northwest directions (V-shaped from Mt. Asamayama to the north)Pyroclastic flow(All of these pyroclastic flows flowed down to the Gunma prefecture side).Subsequently, a large amount of ejecta accumulated on the hillside due to the activity that lasted for about 3 months collapsed without being able to withstand the tremors of the explosion and eruption.These became large-scale landslides and rushed to the north at high speed.Regarding the explosion sound around July 7th京都,Shikoku,HiroshimaI'm suspiciousNagasakiThere is also a record that it was heard.A huge, high-speed stream flows down while scooping out the ground at the foot of the mountain.Kamahara Village(CurrentTsumagoi VillageLarge printArea) andNaganohara TownDestroyed part ofAzumagawaFlow intoNatural damFormed and caused a river channel blockage.The natural dam broke down immediatelyLaharIt causes a great flood next to it and becomes the mainstream while swallowing the villages along the Agatsuma River.Tone RiverFrom the current Maebashi cityTamamura TownThe damage has reached the point.The flooded Tone River carried everything that was washed away downstream, and was the main stream of the Tone River at that time.EdogawaMud flow also flowed in, and many bodies were found in the lower reaches of the Tone River.EdogawaWas launched into.At that time, the number of victims was 1624 (including more than 1,400 in the Kozuke area alone), 1151 lost houses, 51 burned houses, and 130 collapsed houses.[20]..Finally, "Onioshidashi lava" flowed down to the north, and it is said that the Mt. Asamayama eruption in Tenmei 3 was heading toward convergence.
    • Lava flows and pyroclastic flows have long been thought to be the cause of sediment movement, but low-temperature dry powder flows were the main cause of disasters.[21]..A geological survey of Kamahara Village, which suffered the most damage, revealed that only about 3% of the ejecta in the 5rd year of Tenmei were ejected.Also in 1979 (ShowaFrom 54 years)Tsumagoi VillageIn the excavation survey conducted by the company, three private houses could be confirmed, but it is known that the main component is earth and stone at room temperature because very few excavated items were burnt or burned.In addition, it is thought that part of the pyroclastic lava is part of the pyroclastic lava that was deposited near the crater, fused, reflowed, and flowed down. Volcanic ash is far away in excavations in the 3sTochigi OfKinugawaからIbarakiKasumigaura,SaitamaIt was confirmed that it was descending to the north[22]..In addition, a large amount of accumulated volcanic ash caused a large amount of sediment to flow into the main river of the Tone River, causing secondary disaster damage such as flood damage in Tenmei 3 and flood damage in Tenmei 6.[23][23].
    • The eruption at this timeGreat Famine of TenmeiCausesTohoku regionIt has long been recognized that it killed about 10 people, but it cannot be said that it is a direct cause because the poor harvest due to the unseasonable climate in the Tohoku region has already occurred since the 1770s.On the other hand, in the same year, it is in the northern part of the Tohoku region.Mt. IwakisanNot only erupted (April 4, March 13, Tenmei 3),アイス ランド OfLaki volcano(Lakagígar) giant eruption (Lakigígar rift eruption, June 6)GrimsvotonA long-term eruption of a volcano (Grímsvötn) has occurred, resulting in an enormous amount of orders of magnitude.Volcanic gas ThestratosphereRise to.The dust from the eruption covers the northern half of the earth,Amount of solar radiation reaching the groundBecause it reducedNorthern hemisphereToCold injuryBrought about.For this reason, the famine that had already become serious was spurred and the situation was exacerbated. "Volcanic winter # Recorded history caseSee also.
  • June 1938, 13 (Showa 6) A large amount of ash fall.Total amount of ejecta 7 × 25m3, September 9, 26:13 Eruption height 43m.Volcanic Explosivity Index: VEI 8,200.
  • August 1947, 22 (Showa 8) Eruption height 14 m, 12,000 victims due to volcanic bombs.Volcanic Explosivity Index: VEI11.
  • A large explosion occurred at 1950:25 am on September 9, 23.A high school student climbing a mountain died after receiving a volcanic bomb in his head.Ibaraki prefecture, Saitama prefecture, ash fallTokyoIt was also seen in.Explosion soundAichiNagoya cityArrived until.[24]A huge rock mass called Sentoniwa that erupted from this eruption exists near the summit crater on the Gunma prefecture side.
  • 1958年(昭和33年)11月10日 午後10時50分、突然大爆発して噴煙が高さ 7,000 - 8,000mに達した。噴出物総量3.6×105m3, Volcanic Explosivity Index: VEI1.
  • 1973年(昭和48年)2月1日 爆発、小規模な火砕流発生。約1ヶ月前から活発な火山性地震を観測(1月13日、14日合計150回超)し、5月24日まで微噴火まで合わせ87回の噴火と活発な活動が続いた[25]..Volcanic Explosivity Index: VEI2.
  • April 1983, 58 (Showa 4) Explosion,Fukushima OfThe Pacific OceanObserved ash fall on the shore.Volcanic Explosivity Index: VEI 0.9.
  • 2004 years(Heisei16年)9月1日 20時20分頃噴火確認。小康状態の後、9月14日 - 18日にかけて、及び9月23日には中規模の噴火[26].. No eruption observed after November 11th[27]..Volcanic Explosivity Index: VEI1.
  • August 2008, 20 Confirmed a small-scale eruption[28].
  • February 2009, 21 Eruption confirmed.Kanto Plain10g / m over a wide range of2 -50g/m2Ash fall.There is a related article on Wikinews.[29]Volcanic Explosivity Index: VEI1.
  • 2015
    • 0June 6th, around 16:9 am,Empty shakeSmall-scale eruption that does not observe.Confirmed a small amount of ash fall from north to northeast[30].
    • 0A very small eruption occurred around 6:19 on June 17th.[31].
  • 2019 years(ReiwaFirst year)
    • 080A small eruption occurred at around 7:22 on the 08th.On the same day, Mt. Asamayama announced a crater area warning (eruption alert level 3 (mountain entry restrictions)).[32].
    • 0Eruption at around 8:25 on August 19

Disaster prevention

August 1911, 8,Earthquake Investigation CommitteeIs the first in Japan in collaboration with Nagano Weather StationVolcano observatoryWas installed on the west side of Mt. Asamayama.[33].

Evacuation routes etc. are summarized from past eruption casesHazard mapIs being created[34]..Also, in Komoro City, Nagano PrefectureChikuma RiverTraces of lava flow flowing to the riverside and Gunma prefecture sideAzumagawaThen, due to the collapse of the mountain body, a large scaleEarth and stone flowThere is evidence that sediment has accumulated in a wide area up to the vicinity of Maebashi City, and it is not just a problem near the mountain body.

Volcanic eruption prediction liaison meetingIt has been selected by the volcano as a volcano that requires the improvement of monitoring and observation system for volcanic disaster prevention.[35]. Also,Earthquake Research Institute, University of TokyoObservations are carried out 365 hours a day, 24 days a year.


Topography of Asama volcano

  • Mt. Maekake-There is a central crater hill and a Busan crater (current crater).
  • Mt. Kurofuyama --The caldera edge of the ancient stratovolcano.
  • Later volcano
    • Small Mt. Asamayama- Lava dome..3.8km east of Busan crater.
    • Hanareyama --Lava dome, relative height is about 200m, 10km southeast of Busan crater.
    • Mt. Ishizune-A lava dome located on the south side of Mt. Maekake, with a relative height of about 250m and 3.3km southwest of the Busan crater.


At the southern foot of Mt. Asamayama, on the Nagano sideKaruizawaHowever, on the Gunma prefecture side at the northern foot of the mountain, Tsumagoi Village and Naganohara Town, Agatsuma DistrictKita KaruizawaAnd scenicSummer resortDevelopment has been progressing for a long time.The northern foothills area has a characteristic topography formed by volcanic activity, which will be described later, and in 2016.Japan GeoparkCertified by[36].

  • Onioshidashi, Onioshidashi leaked in the pastLava flowTraces ofDemon Extrusion Gardenas well as the Onioshidashi SengenIt is maintained as.In Asama GardenAsama Volcano MuseumThere is.
  • Shiraito Falls,Volcanic ejectaFrom the horizontal plane wherespringBlows outwaterfallIs a famous place.
  • Mt. Asamayama lava tree type, During the great eruption of Mt. Asamayama in the 3rd year of Tenmei, a pyroclastic flow was generated and flowed to the Gunma prefecture side.Native forestReached.The hot pyroclastic flow wraps around the trees, burning down the growing trees.Eventually, the burnt residue of the tree decayed, leaving only a well-like hole (although it is called a "lava tree type", it is known that it was actually formed by a pyroclastic flow).Hundreds of tree types have been found in Tsumagoi Village, of which about XNUMX are in Tsumagoi Village.Board of educationConservation activities to regularly remove soil and dead leaves accumulated in the tree mold and maintenance of the surrounding area are being continued.Trees range in size from small ones with a diameter of several tens of centimeters and a depth of one meter to huge ones with a diameter of more than two meters and a depth of five meters or more.In the treeHikarigokeSome of them are clustered, and in the maintained area, they can be easily observed together with the tree type.From the country on August 15, 1940Special Natural MonumentSpecified in.

Source river

The source of the followingRiverRespectivelySea of ​​JapanThe Pacific OceanFlow to[37].

Flora and fauna

Mt. AsamayamaSilabiso,Abies mariesiiNature of the subalpine zone centered onVegetationLeaving aroundLarch OfNatural forestIs widespread and is home to many wild animals.Among them,Golden eagle,Asiatic black bearAsama designated by the country because it is important as a habitat forWildlife reserveDesignated as (Large-scale habitat) (Area 32,218)haOf which, the Special Protection Area 947ha).

Faith and folklore

"Asama" is an ancient word for volcanoes.Mount FujiEnshrine the god ofShrine Asama ShrineFor the same reason, it is called (Sengenjinja).Mount Aso"Aso" is also said to be a similar word. Mt. Asamayama, like many mountains, has been around for a long timeMountain worshipAsama Shrine (the deity is different from the usual Asama Shrine) is enshrined.

Snow shape
On the south and north slopes of Mt. AsamayamaSpring:To become andSnow shapeAppears.On the south slopecarpThe pattern of is an upside-down horse on the north slope ((I.e.Seems to have his head down) By the time he leavesSeedbedThere is a custom to prepare for[38].


The area near the crater of Mt. Asamayama has been off limits since 1972 due to the eruption of the volcano.Although the regulation was lifted during the subsequent calm period, depending on the volcanic activity, mountain climbing restrictions may be imposed as an exclusion zone within a certain straight line distance from the crater by the local government.

As of 2022, climbing from the Komoro City side of Nagano Prefecture to Mt. Maekake is permitted.The Mt. Asamayama Geopark Promotion Council, which will be built in Naganohara Town and Tsumagoi Village on the Gunma Prefecture side, plans to develop a mountain trail aiming for opening in 2025 in consultation with the Ministry of the Environment, and will also set up a shelter in preparation for an eruption.[36].

  • Celebrity climbing record
  • The eruption forecast has been "Volcanic Alert Level 2018" (note that it is an active volcano) since August 8, 30.[40].
  • Karuizawaguchi:National Highway 146"Mine no Chaya" course.
    • No trespassing around the Mt. Asamayama crater (regulated within 0.5 kilometers from the crater).
      • Small Mt. Asamayama ・ It is possible to climb the mountain trail leading to Mt. Ishizune.
  • Komoroguchi: "Black Spot Course / Volcano Museum Course"
    • No trespassing around the Mt. Asamayama crater (regulated within 0.5 kilometers from the crater).
      • You can enter Mt. Maekake.

 There used to be a mountain trail from Tsumagoi Village via Mt. Kurofuyama, but the mountain trail collapsed due to rain and is now out of service.

The work that became the stage

  • As the sun goes down, I can't even see Asama. Shimazaki Fujimura(Chikuma River Travel Information Song)
俳 句
  • Tsumagoi-Tenmei XNUMXrd year Mt. Asamayama eruption secret story / Junya Fukumoto
  • Mt. Asamayama swallows history-The Great Eruption of Tenmei / Author: Seiichi Konishi, Picture: Sumio Koizumi
  • Mt. Asamayama eruption / Takashi Watanabe
  • Mythical climate Fuji Asama mountain turmoil / Masanori Yoshii
  • People who protected Karuizawa-Mt. Asamayama Memories of the US Army Exercise Area Opposition Movement / Kenji Tabei
  • In the village where Mt. Asamayama can be seen / Fumiko Minami, Katsuko Ikeda
  • Asama / Kazuhei Tatematsu
  • Konohana Kitan Vol. 10 Ieji / Sakuya Amano (manga work)
  • Getter RoboSeries / Ken Ishikawa,Nagai Hao(Manga, Anime) Getter Robo Operation base research institute exists in Mt. Asamayama.

Related images


[How to use footnotes]

注 釈

  1. ^ a b The highest point is the elevation point at the eastern end of the summit crater, and the third grade at the southern end of the summit.Triangular point(Point name "Mt. Asamayama" 2,493.936m) is[1].
  2. ^ Representing Mt. Asamayama in this bookAlpine plant OfMurasakiIntroduced[5].


  1. ^ "Japan's main mountain elevations". Geographical Survey Institute. 2011/3/4Browse.
  2. ^ "About selection of active volcano by volcanic eruption prediction liaison group and classification by volcanic activity (rank classification) (PDF)”. Japan Meteorological Agency. 2016/11/4Browse.
  3. ^ "Introduction of Joshinetsu Kogen National Park". Environment Agency. 2011/3/4Browse.
  4. ^ a b Kyuya Fukada "One Hundred Mountains of Japan"Asahi Shimbun Publishing, August 1982, pp. 7-168.ISBN 4-02-260871-4.
  5. ^ Sumie Tanaka"Hundred Famous Mountains of Flowers (Treasure Edition)"文藝 春秋, August 1997, pp. 6-259.ISBN 4-16-352790-7.
  6. ^ "Comparison of whole rock chemical composition of Maekake volcanic ejecta and Buddhist volcanic and black spot volcanic ejecta. MgO vs. SiO2 Figure". Nihon UniversityFaculty of Arts and Sciences, Department of Earth Systems Science. As of June 2012, 6originalMore archives.2009/3/9Browse.
  7. ^ Hidetsugu Yoshida and Toshihiro Sugai (2006). “Magnitude of the sediment transport event due to the Late Pleistocene sector collapse of Asama volcano, central Japan”. Geomorphology 86 (1-2): 61-72. http://www.sciencedirect.com/science/article/pii/S0169555X06003722 2016/11/25Browse.. 
  8. ^ a b "6) Asama Volcano (PDF)". National Institute of Advanced Industrial Science and Technology. 2016/6/21Browse.
  9. ^ Toru Yajima, Masaki Takahashi, Shinya Yasui, Tatsuo Kanamaru "A2-25 Asama Buddhist volcanic rhyolite Deformed structure found in lower lava of Buddhist rock and its origin (volcanic geology, oral presentation)"Volcanological Society of Japan Lecture Proceedings" 2014 Volume 2014 Session ID: A2-25, p.37-, two:10.18940 / vsj.2014.0_37, Volcanological Society of Japan
  10. ^ [Kanto Gururi My Town Cultural Heritage] Iwagami's Flying Stone (Maebashi) Mt. Asamayama The god created by the eruption"Sankei ShimbunMay 2018, 5 (Tokyo side) Viewed May 4, 2019
  11. ^ "Eruption style and eruption history of Sengenmae Kake volcano”. Department of Earth Systems Science, College of Arts and Sciences, Nihon University. As of July 2012, 7originalMore archives.2009/3/9Browse.
  12. ^ Overview of the geology and formation history of Asama volcano Earthquake Research Institute, University of Tokyo
  13. ^ "Mt. Asamayama eruption follow-up" "Official gazette] June 1889, 12(National Diet LibraryDigitized material)
  14. ^ Kaoru Okashima "Japanese Disasters" May Shobo, 1893
  15. ^ Yukio HayakawaHideko Nakajima "Mt. Asamayama eruption and disaster written in historical materials" Volcano, Vol. 43, No. 4, pp. 213-221, 1993.two:10.18940 / kazan.43.4_213.https://doi.org/10.18940/kazan.43.4_213. 
  16. ^ Ken Noto "Ancient Disaster 4 Tennin 2006st Year, Mt. Asamayama Eruption" (edited by Itoko Kitahara, "History of Japanese Disasters" Yoshikawa Kobunkan, 62) Page XNUMX
  17. ^ Caused by Mt. Asamayama, the European famine 900 years ago?Traces on glaciers, (2020-05-20), https://www.asahi.com/articles/ASN5L6QJQN5HULBJ012.html 
  18. ^ Masaru Hirayama"Augmented revised edition Tensho Miho no Ran The Honnoji TempleEastern countrySengoku History ”(Ebisu Sho Publishing, 2015) pp.16-17
  19. ^ Masaru Hirayama "Destruction of Mr. Takeda" (Kadokawa Shoten, 2017) pp.585-587
  20. ^ "1783 Tenmei Mt. Asamayama eruption" "Report of the Special Investigation Committee on the Succession of Disaster Lessons"Central disaster prevention conference(December 18)
  21. ^ Kimio Inoue; Yoshiharu Ishikawa; Takashi Yamada; Shigemi Yajima; Katsumi Yamakawa "The actual condition of sediment movement that changed from the Kamahara pyroclastic flow to the mud flow at the time of the Mt. Asamayama eruption" "OYO" Vol. 35, No. 1, pp. 12-30, April 1994.two:10.5110 / jjseg.35.12.https://doi.org/10.5110/jjseg.35.12. 
  22. ^ Hiroyuki Ishi"Volcanic eruption that changed history-Environmental history of natural disasters-" (Tosui Shobo, 2012) Page 105
  23. ^ a b Eruption of Mt. Asamayama in 3 Ministry of Land, Infrastructure, Transport and Tourism Tone River Water System Sabo Office
  24. ^ "Mt. Asamayama, 3 people killed and injured in the Akatsuki explosion" Asahi Shimbun, September 25, 9, page 24
  25. ^ Watanabe Mitsugu "Seismic activity during and before and after the 1973 Mt. Asamayama eruption-in connection with a few precursory phenomena-" (PDF) "Experimental Time Signal" Volume 41 Japan Meteorological Agency, pp. 1-11.https://www.jma.go.jp/jma/kishou/books/kenshin/vol41p001.pdf. 
  26. ^ "Seismic waveform in Mt. Asamayama eruption". Disaster Prevention Research Institute (September 2004, 9). 2009/3/10Browse.
  27. ^ Asama volcano 2004 eruption National Institute of Advanced Industrial Science and Technology Geological Information Research Division
  28. ^ "Volcanic activity commentary material of Mt. Asamayama (August 20) (PDF)”. Japan Meteorological Agency Earthquake Volcano Department Volcano Monitoring and Information Center. 2014/11/4Browse.
  29. ^ Eruption image,1 hour video before and after the eruption,24-hour video on the day of the eruption
  30. ^ "Volcanic activity commentary material of Mt. Asamayama (27:6, June 16, 17) (PDF)”. Japan Meteorological Agency Earthquake Volcano Department Volcano Monitoring and Information Center. 2015/6/17Browse.
  31. ^ "Commentary information on the situation of the volcano No. 16 June 27, 6 20:16”. Meteorological Agency Earthquake and Volcano Department. 2015/6/20Browse.
  32. ^ "Status of volcanic activity (Mt. Asamayama)”. Japan Meteorological Agency. 2019/8/7Browse.
  33. ^ History of modern volcanic observations --Yamasatohei
  34. ^ "Mt. Asamayama Volcano Disaster Prevention Map”. Ministry of Land, Infrastructure, Transport and Tourism Tone River Water System Sabo Office. 2016/11/5Browse.
  35. ^ "Volcanoes need to be fully equipped with monitoring and observation systems for volcanic disaster prevention (PDF)”. Japan Meteorological Agency. 2016/2/25Browse.
  36. ^ a b "Mt. Asamayama mountain climbing from Gunma / new route to open in 25" "Yomiuri Shimbun』Evening October 2022, 4 5th page
  37. ^ "Mt. Asamayama Karuizawa 2010 Edition (" Yama-To-Kogen-Chizu "map 19)"Shobunsha, March 2010, attached map.ISBN 978-4398756992.
  38. ^ "[Yukigata] Upside down horse in northeastern Nagano prefecture (created by Tsumagoi Village, Gunma Prefecture, created by Tsumagoi Karuta)”. Azumino City, Tsumagoi Village. 2016/11/5Browse.
  39. ^ "I see, Map Book Japanese Mountains" Shobunsha Publications, January 2006, p. 1.ISBN 4398200258.
  40. ^ Information page for volcanic climbers> Volcanic activity status (Mt. Asamayama)Japan Meteorological Agency (accessed May 2019, 5).


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