アメリカ合衆国 · 成層火山
Hayes Volcano
Hayes
- タイプ
- 成層火山
- 標高
- 3034m
- 最終噴火
- 1200年
- タイプ
- 成層火山
- 国
- アメリカ合衆国
- 地域
- 北アメリカ / Alaska Peninsula Volcanic Arc
- 標高
- 3034m
- 座標
- 61.640, -152.411
- 最終噴火
- 1200年
- テクトニクス環境
- 沈み込み帯 / 大陸地殻 (> 25 km)
- 火山地形
- 複成火山
- 主要岩石
- デイサイト
地質学的概要
Hayes volcano, located in a remote and rugged part of the Alaska Range NW of Anchorage and N of Mount Gerdine, was not discovered until 1975. It was named after nearby Hayes Glacier and consists of scattered remnants of a largely snow-and-ice covered volcano that has been destroyed by catastrophic eruptions. The most widespread Holocene eruptions in the Cook Inlet area originated from Hayes between about 3800 and 3400 years ago and produced six regional tephra layers with an average volume of 2.4 km3. The latest known eruption took place about 1000 years ago.
Wikipedia の要約
英語版の要約Hayes Volcano is a stratovolcano in southwestern Matanuska-Susitna Borough, Alaska, 135 km northwest of Anchorage, that was not discovered until 1975. It is responsible for a series of six major tephra layers in the Cook Inlet region of Alaska. Hayes was mostly destroyed by at least six catastrophic eruptions between 3,400 and 3,800 years ago, and the average volume of these eruptions was 2.4 cubic km. In comparison, the volume of the May 18, 1980 eruption of Mount St. Helens was about 1 cubic km. The eruptions of Hayes Volcano during that time were the most voluminous Holocene eruptions to have occurred in the Cook Inlet region. There is currently no fumarolic activity present. The last eruption of Hayes Volcano occurred roughly 1,200 years ago. It is named after the adjacent Hayes Glacier.
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噴火履歴
3件の記録用語集詳細タイムライン
- 1200年 (±300年)VEI ?地質学的推定1200 ~ 終了日不明
- 紀元前 1550年VEI 5地質学的推定紀元前 1550 ~ 終了日不明
- 紀元前 1850年VEI ?地質学的推定紀元前 1850 ~ 終了日不明
近くの火山
外部リンク
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