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エスメラルダ礁

Esmeralda Bank

成層火山 · United States · 74m (海底)

A bathymetric model with 2x vertical exaggeration shows the Esmeralda Bank submarine volcano, as seen from the NW. Depths in this image range from 54 to 2,052 m. Bathymetry data (~25 m resolution) is overlaid on SeaBat data (~50 m resolution) courtesy of Yoshihiko Tamura (JAMSTEC). The main central edifice seen here has a 3-km summit crater open to the W. Sulfur and water discoloration from eruptive or geothermal activity have frequently been observed.
A bathymetric model with 2x vertical exaggeration shows the Esmeralda Bank submarine volcano, as seen from the NW. Depths in this image range from 54 to 2,052 m. Bathymetry data (~25 m resolution) is overlaid on SeaBat data (~50 m resolution) courtesy of Yoshihiko Tamura (JAMSTEC). The main central edifice seen here has a 3-km summit crater open to the W. Sulfur and water discoloration from eruptive or geothermal activity have frequently been observed. · 写真: Image courtesy of Susan Merle (Oregon State University/NOAA Vents Program). · Wikimedia Commons
タイプ
成層火山
国
United States
地域
Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
標高
74m (海底)
座標
14.958, 145.249
最終噴火
不明
テクトニクス環境
Subduction zone / Crustal thickness unknown
火山地形
Composite
主要岩石
Basalt / Picro-Basalt
地質学的概要

Esmeralda Bank is a massive submarine volcano with three cones oriented N-S over about 15 km. The high points on the crater rim of the large middle edifice, with a collapse scarp open to the W, are about 75 m below the ocean surface. Frequent sulfur-rich surface bubbling and water discoloration have been observed, which have variously been attributed to eruptive events or fumarolic activity.

Wikipedia の要約

英語版の要約

Esmeralda Bank is a submarine volcano around 37 km west of Tinian Island of the Northern Mariana Islands in the Pacific Ocean. It is located at the southern end of the Mariana Arc. It has three summit cones lying along a north–south line. The highest peak is about 43 meters below the sea surface and has a caldera about 3 kilometers wide and several parasitic cones on the edge of the caldera. Sulfur boils and water discoloration have been observed at the site of the volcano, attributed to either eruptions or fumarolic activity.

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
1944~1948 · 1件 · 最大 VEI 01961~1966 · 1件 · 最大 VEI 21970~1974 · 1件 · 最大 VEI 01974~1978 · 1件 · 最大 VEI 01978~1983 · 1件 · 最大 VEI 01983~1987 · 1件 · 最大 VEI 019441953196619741983

詳細タイムライン

  1. 1987年VEI 0地質学的推定
    1987-05-26 ~ 進行中
  2. 1982年VEI 0地質学的推定
    1982-04-06 ~ 進行中
  3. 1975年VEI 0地質学的推定
    1975-04-26 ~ 1975-04-29
  4. 1970年 (±1年)VEI 0地質学的推定
    1970-07-02 ~ 進行中
  5. 1964年VEI 2地質学的推定
    1964-04-14 ~ 進行中
  6. 1944年VEI 0地質学的推定
    1944-08-20 ~ 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。