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羅臼岳

Rausudake

成層火山 · Japan · 1660m

Rausudake, seen here from the SW at Shiretoko Pass, is a small cone in NE Hokkaido. It is located 5 km SW of Shiretoko-Iozan volcano along the crest of the elongated NE-trending ridge forming the Shiretoko Peninsula. Explosive eruptions have taken place several times during the Holocene, including eruptions of pumiceous tephras about 2,200 and 1,500 years ago.
Rausudake, seen here from the SW at Shiretoko Pass, is a small cone in NE Hokkaido. It is located 5 km SW of Shiretoko-Iozan volcano along the crest of the elongated NE-trending ridge forming the Shiretoko Peninsula. Explosive eruptions have taken place several times during the Holocene, including eruptions of pumiceous tephras about 2,200 and 1,500 years ago. · 写真: Copyrighted photo by Yoshihiko Goto (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/). · Wikimedia Commons
タイプ
成層火山
国
Japan
地域
北西太平洋 / Kuril Volcanic Arc
標高
1660m
座標
44.076, 145.122
最終噴火
1800年
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

Rausudake is an andesitic-to-dacitic stratovolcano with summit lava domes on the Shiretoko Peninsula in NE Hokkaido. The 1660-m-high volcano is located along a ridge 5 km SW of Shiretoko-Iozan volcano, the NE-most Holocene volcano in Hokkaido. Young lava flows descend the NW flank and broad areas along the SE flank, and an older lava flow traveled about 9 km W, reaching the coast of the Sea of Okhotsk along a broad front. Eruptions produced pumiceous tephras with associated pyroclastic flows about 2200, 1400, and 800 years ago. Recent work has documented a pyroclastic-flow deposit that overlies the 1739 tephra from Tarumai volcano in SW Hokkaido. Stratigraphic relationships place this eruption, the most recent known from Rausudake, between about 1750 and 1850 CE.

Wikipedia の要約

英語版の要約

Mount Rausu is a stratovolcano on the Shiretoko Peninsula in Hokkaidō, Japan. It sits on the border between the towns of Shari and Rausu. Mount Rausu is the northeasternmost Holocene volcano on Hokkaidō. It is one of the 100 famous mountains in Japan.

Wikipedia · CC BY-SA · 記事全文を読む →

噴火履歴

概要 (VEI時系列)
バーをクリックすると個別の噴火が表示されます
270 BCE~82 BCE · 1件 · 最大 VEI ?82 BCE~106 · 1件 · 最大 VEI 3483~671 · 1件 · 最大 VEI 41235~1424 · 1件 · 最大 VEI 31612~1800 · 1件 · 最大 VEI 3270 BCE29567112351612

詳細タイムライン

  1. 1800年 (±50年)VEI 3地質学的推定
    1800-07-02 ~ 進行中
  2. 1350年 (±100年)VEI 3地質学的推定
    1350 ~ 進行中
  3. 550年 (±100年)VEI 4地質学的推定
    550 ~ 進行中
  4. 80年 (±50年)VEI 3地質学的推定
    80 ~ 進行中
    SW flank (Tencho-zan)
  5. 紀元前 270年 (±100年)VEI ?地質学的推定
    BCE 270 ~ 進行中

外部リンク

⚠ 参考情報です。緊急対応には使用しないでください。