NEWS中岳噴煙社会

阿蘇山の爆発的噴火、噴煙の高さは1万1000メートル 愛媛や香川でも降灰

爆発的な噴火が発生したのは、1980年1月26日以来36年ぶり。
Kazuhiko Kuze
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A video grab from the Japan Meteorological Agency's live camera image shows an eruption of Mount Aso in Aso, Kumamoto prefecture, southwestern Japan, September 14, 2015. Mount Aso, a volcano located on Japan's southernmost main island of Kyushu, erupted on Monday, Japan's Meteorological Agency said, sending up huge plumes of grey ash and smoke. REUTERS/Japan Meteorological Agency/Handout via Reuters ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.
Handout . / Reuters

熊本県・阿蘇山中岳の第一火口で10月8日午前1時46分ごろ、爆発的な噴火が発生し、西日本を中心に広い範囲で降灰があり、愛媛県や香川県でも確認された。気象庁は噴火経過レベルを2（火口周辺規制）から3（入山規制）に引き上げ、火口から約2キロ周囲で噴石や火砕流に警戒するよう呼びかけている。朝日新聞デジタルなどが報じた。

気象庁によると、中岳第一火口で爆発的な噴火が発生したのは、1980年1月26日以来36年ぶり。気象衛星の観測で、噴煙は1万1000メートルの高さまで上がったことが確認され、過去20年の間で最も高い噴煙となった。NHKによると、福岡管区気象台は「最も高くまで上がった噴煙は、阿蘇山では2000メートル程度だったが、今回はその5倍の高さに達している」という。

気象庁の斎藤誠火山課長は8日未明の会見で、「現時点ではこれ以上大きな噴火の可能性は低いが、同じ規模の噴火が起こりうる」と述べ、警戒を呼びかけた。

Twitterには、降灰があった地域からのレポートが次々と上がってきている。

阿蘇山火口
JAPAN-VOLCANO/ (01 of14)
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A video grab from the Japan Meteorological Agency\'s live camera image shows an eruption of Mount Aso in Aso, Kumamoto prefecture, southwestern Japan, September 14, 2015. Mount Aso, a volcano located on Japan\'s southernmost main island of Kyushu, erupted on Monday, Japan\'s Meteorological Agency said, sending up huge plumes of grey ash and smoke. REUTERS/Japan Meteorological Agency/Handout via ReutersATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. (credit:Handout . / Reuters)
JAPAN-VOLCANO/ (02 of14)
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A video grab from the Japan Meteorological Agency\'s live camera image shows an eruption of Mount Aso in Aso, Kumamoto prefecture, southwestern Japan, September 14, 2015. Mount Aso, a volcano located on Japan\'s southernmost main island of Kyushu, erupted on Monday, Japan\'s Meteorological Agency said, sending up huge plumes of grey ash and smoke. REUTERS/Japan Meteorological Agency/Handout via ReutersATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. (credit:Handout . / Reuters)
JAPAN-VOLCANO/ (03 of14)
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A video grab from the Japan Meteorological Agency\'s live camera image shows an eruption of Mount Aso in Aso, Kumamoto prefecture, southwestern Japan, September 14, 2015. Mount Aso, a volcano located on Japan\'s southernmost main island of Kyushu, erupted on Monday, Japan\'s Meteorological Agency said, sending up huge plumes of grey ash and smoke. REUTERS/Japan Meteorological Agency/Handout via Reuters ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. (credit:Handout . / Reuters)
JAPAN-QUAKE(04 of14)
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The picture shows the largest active volcano in Japan, Mount Aso (C) and the village of Minami-Aso (bottom), Kumamoto prefecture on April 17, 2016. \nRescuers were racing against the weather and the threat of more landslides April 17 to reach people still trapped by two big earthquakes that hit southern Japan. / AFP / KAZUHIRO NOGI (Photo credit should read KAZUHIRO NOGI/AFP/Getty Images) (credit:KAZUHIRO NOGI via Getty Images)
TOPSHOT-JAPAN-QUAKE(05 of14)
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TOPSHOT - The picture shows an aerial of the largest active volcano in Japan, Mount Aso, in Aso, Kumamoto prefecture on April 16, 2016. \nA powerful earthquake hit southern Japan early on April 16, authorities said, sending panicked residents out of their homes in a region where nerves were already frayed by a swarm of strong shaking. / AFP / JIJI PRESS / STR / Japan OUT (Photo credit should read STR/AFP/Getty Images) (credit:STR via Getty Images)
Satellite Image close up of Mount Aso, Kumamoto Prefecture, Kyūshū, Japan(06 of14)
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MOUNT ASO, KUMAMOTO PREFECTURE, KYUSHU, JAPAN - MARCH 26, 2010: This is a close up satellite image of Mount Aso, Japan collected on March 26, 2012. (Photo DigitalGlobe via Getty Images) (credit:DigitalGlobe/ScapeWare3d via Getty Images)
Smoke emitting from a volcano, Aso Kuju National Park, Kumamoto, Kyushu, Japan(07 of14)
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UNSPECIFIED - FEBRUARY 07: Smoke emitting from a volcano, Aso Kuju National Park, Kumamoto, Kyushu, Japan (Photo by DEA / G.NIMATALLAH/De Agostini/Getty Images) (credit:DEA / G.NIMATALLAH via Getty Images)
Mount Aso(08 of14)
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circa 1938: Mount Aso, an active volcano on Japan\'s southern island of Kyushu. (Photo by Fox Photos/Getty Images) (credit:Fox Photos via Getty Images)
Japan. The mount Aso. August 1972.(09 of14)
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JAPAN - CIRCA 1972: Japan. The mount Aso. August 1972. (Photo by Marie Mathelin/Roger Viollet/Getty Images) (credit:Marie Mathelin via Getty Images)
Japan. The mount Aso. September 1972.(10 of14)
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JAPAN - CIRCA 1972: Japan. The mount Aso. September 1972. (Photo by Marie Mathelin/Roger Viollet/Getty Images) (credit:Marie Mathelin via Getty Images)
Gaving through sulphurous vapors into the crater's depths, Aso-San, Japan, 1904. Artist: Underwood & Underwood(11 of14)
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Lookingng through sulphurous vapors into the crater\'s depths, Aso-san, Japan, 1904. Mount Aso (Aso-san), on the island of Kyushu, is the largest active volcano in Japan. Its caldera is 25 kilometres across at its widest point. Stereoscopic card. Detail. (Photo by The Print Collector/Print Collector/Getty Images) (credit:Print Collector via Getty Images)
Watching an eruption of steam and boiling mud halfway up the volcano of Aso-san, Japan, 1904. Artist: Underwood & Underwood(12 of14)
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Watching an eruption of steam and boiling mud halfway up the volcano of Aso-san, Japan, 1904. Mount Aso (Aso-san), on the island of Kyushu, is the largest active volcano in Japan. Its caldera is 25 kilometres across at its widest point. Stereoscopic card. Detail. (Photo by The Print Collector/Print Collector/Getty Images) (credit:Print Collector via Getty Images)
Fertile rice fields in the old crater of Aso-San, Japan, 1904.Artist: Underwood & Underwood(13 of14)
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Looking west towards Kumamoto across fertile rice fields in the old crater of Aso-San, Japan, 1904. Stereoscopic card. Detail. (Photo by The Print Collector/Print Collector/Getty Images) (credit:Print Collector via Getty Images)
Mount Aso on Kyushu Island(14 of14)
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Mount Aso erupts, blowing clouds of smoke into the sky. A traditional Japanese building sits in the right foreground. Kyushu Island, Japan, ca. 1920s. (Photo by Michael Maslan/Corbis/VCG via Getty Images) (credit:Michael Maslan via Getty Images)

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