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355:, an 8.7 on the Richter scale. The earthquake severely damaged the city of Osaka, but more than that, it created enough seismic activity to compress the magma chamber 20 km deep in the inactive Mt. Fuji. Due to the compression of the magma chamber, basaltic lava rose from the bottom to the higher dacitic magma chamber at 8 km deep. The mixing of the two different types of magma caused a
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465:, much attention was given to the volcanic reaction of Mount Fuji. Experts have found that the internal pressure of the Mount Fuji magma chamber has increased to an estimated 1.6 megapascals, raising speculation over the possibility of an eruption. The financial damage to Japan from a Fuji eruption is estimated at ¥2.5 trillion (about $ 25 billion).
194:, collapses and side eruptions, leading it to be called "a department store of eruptions". Ash from New Fuji is often black, and eruptions are new in terms of geological layers. Valuable data on the activity of Mount Fuji is recorded in Japanese historical documents dating from the 8th century onwards. It exhibits a range of representative eruptions.
430:, with twelve eruptions between 800 and 1083. Sometimes inactive periods between eruptions lasted for hundreds of years, as in the period between 1083 and 1511, when no eruptions were recorded for over 400 years. At present, there have been no eruptions since the Hoei eruption in 1707–1708, around 300 years ago.
458:/m/day then seismic activity is occurring and an eruption could possibly take place. According to a five-stage evolutionary model for the release of volcanic gas, Mt. Fuji would be considered stage I. Magma is at a considerable 10 km (6.2 mi) depth and no emissions of gases can be observed regularly.
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had struck Japan in 1703. The earthquake affected both
Kanagawa and Shizuoka prefectures, and was measured as an 8.2 on the Richter Scale. The Genroku earthquake had a similar effect on Mt. Fuji as Hoei but with less severity. It clamped the dike of the mountain at 8 km to the surface (where the
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in 1707. The mountain as it appears now is known as the "New Fuji volcano", which began to erupt about 10,000 years ago. Under the "New Fuji volcano" lies the "Old Fuji volcano", which was active between 100,000 years ago and 10,000 years ago, and the "Komitake volcano", which became
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and splitting Lake
Senoumi, which existed at the time, into two. This created Lake Saiko and Lake Shojiko. Many people perished and many homes were destroyed. The volcanic eruption began on the side of Fuji-san closest to Mount Asama, throwing cinders and ash as far away as
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dacitic magma resides), as well as the basaltic chamber at 20 km deep. Many articles found a correlation between the two earthquakes, arriving at the conclusion that without either earthquake the Hoei eruption would not have happened.
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Following the Old Fuji period, there were about 4,000 years of inactivity, ending at around 5,000 years ago, when Mount Fuji became active again; this period is known as New Fuji
121:—was also highly active throughout the period. The peak of Komitake is about 2,300 meters (7,500 ft) above sea-level on the north face of Mount Fuji (at the fifth station).
251:): Mount Fuji erupted for 10 days, and it ejected from its summit an immense quantity of cinders and ash. Lava flowed down its west bank, creating the plain that is now
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There has been volcanic activity in the vicinity of Mount Fuji for several million years. The earliest geologically known volcano was Mount
Komitake
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area as far as the
Ashigara plain in the east and the Suruga bay across Mishima city in the south. This incident is now called the Gotemba mud flow
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that reached a height of 3,100 meters (10,200 ft). It created many explosive eruptions that threw out large amounts of
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Komitake entered another period of activity around 100,000 years ago. This created a new volcano known as Old Fuji
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era) there was an eruption on the north-east side of Mount Fuji, which produced a great amount of lava.
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Sixteen eruptions of New Fuji have been recorded since 781. Many of the eruptions occurred in the
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that became active 700,000 years ago. Another volcano to the south-east of Mount Fuji—known as
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The Hoei Crater (on the peak's centre-right) was the location of the 1707 eruption.
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emissions in the deeper parts of the volcano. Studies from before the 2011
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Scientists study the activity of the magma rising by measuring CO
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About 2,300 years ago the east face of the volcano collapsed and
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to occur. Previous to the Hoei, another earthquake named
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Nipon o daï itsi ran: ou
Annales des empereurs du Japon
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Nipon o daï itsi ran: ou
Annales des empereurs du Japon
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which existed at the time, dividing it into two lakes,
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https://www.mlit.go.jp/tagengo-db/common/001563619.pdf
619:"2011 earthquake put pressure on Mt. Fuji - UPI.com"
601:"Experts Predict Japan's Mount Fuji Will Erupt Soon"
744:- Smithsonian Institution: Global Volcanism Program
333:The latest eruption, in 1707 (the 4th year of the
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463:2011 Tōhoku earthquake and tsunami
383:Hōei 4, 23rd day of the 11th month
373:Hōei 4, 14th day of the 10th month
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656:Mount Fuji - All About Its Nature
694:Annales des empereurs du Japon.
713:Fujisan "Fujisan (Mount Fuji)"
389:; the cinders and ash fell in
16:Volcanic history of Mount Fuji
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738:- Japan Meteorological Agency
643:Fujisan Sono Shizen no Subete
66:which is the tallest peak in
234:In 864 (the 6th year of the
773:Volcanic eruptions in Japan
687:Titsingh, Isaac. (1834). ,
475:Hōei eruption of Mount Fuji
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480:List of volcanoes in Japan
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37:35.3628750°N 138.7315639°E
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658:", written by Akira Suwa
576:Shikuoka University page
555:Titsingh, Isaac (1834).
534:Titsingh, Isaac (1834).
504:www.volcanodiscovery.com
413:over a region as far as
434:Current eruptive danger
339:era), was known as the
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103:small mountain volcano
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758:Izu–Bonin–Mariana Arc
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88:Komitake and Old Fuji
79:700,000 years ago.
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742:Fujisan (Mount Fuji)
690:Nipon o daï itsi ran
599:Blackstone, Samuel.
198:The Gotemba mud flow
763:Volcanoes of Honshū
589:Japanese Knowledge.
422:Records of eruption
206:flowed down to the
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581:2017-08-12 at the
385:): An eruption of
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249:Jōgan 6, 5th month
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444:Tohoku earthquake
379:December 16, 1707
369:November 11, 1707
253:Aokigahara Forest
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649:富士山 その自然のすべて
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623:. Retrieved
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146:volcanic ash
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446:show the CO
138:, Old Fuji)
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768:Mount Fuji
752:Categories
730:|url=
637:References
625:2015-11-01
509:2019-10-19
387:Mount Fuji
353:earthquake
308:Aokigahara
83:Prehistory
72:earthquake
60:Mount Fuji
55:Mount Fuji
621:. upi.com
500:"Mt Fuji"
428:Heian era
721:cite web
579:Archived
469:See also
345:eruption
171:shinfuji
156:New Fuji
732:value (
697:Paris:
403:Musashi
361:Genroku
310:forest.
285:Shōjiko
208:Gotemba
182:flows,
64:volcano
728:Check
692:; ou,
681:
411:scoria
401:, and
399:Sagami
349:Great
341:great
301:青木ヶ原溶岩
204:lahars
188:scoria
142:scoria
135:kofuji
77:active
486:Notes
272:Saiko
237:Jōgan
215:御殿場泥流
184:magma
97:小御岳火山
68:Japan
734:help
679:ISBN
673:同文書院
409:and
351:Hōei
343:Hōei
336:Hōei
283:and
180:lava
150:lava
148:and
663:諏訪彰
654:, "
587:see
563:415
542:118
415:Edo
395:Kai
391:Izu
291:精進湖
265:せの海
245:864
165:新富士
129:古富士
116:愛鷹山
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278:西湖
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