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Esmeralda Bank

Stratovolkan · United States · 74 m (bawah laut)

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. · Foto: Image courtesy of Susan Merle (Oregon State University/NOAA Vents Program). · Wikimedia Commons
Tipe
Stratovolkan
Negara
United States
Wilayah
Northwestern Pacific Volcanic Regions / Mariana Volcanic Arc
Ketinggian
74 m (bawah laut)
Koordinat
14.958, 145.249
Letusan terakhir
Tidak diketahui
Kondisi tektonik
Subduction zone / Crustal thickness unknown
Bentuk lahan
Composite
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

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.

Ringkasan Wikipedia

Ringkasan Inggris

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.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1944~1948 · 1 letusan · VEI maks. 01961~1966 · 1 letusan · VEI maks. 21970~1974 · 1 letusan · VEI maks. 01974~1978 · 1 letusan · VEI maks. 01978~1983 · 1 letusan · VEI maks. 01983~1987 · 1 letusan · VEI maks. 019441953196619741983

Garis waktu rinci

  1. 1987VEI 0Perkiraan geologi
    1987-05-26 – Berlangsung
  2. 1982VEI 0Perkiraan geologi
    1982-04-06 – Berlangsung
  3. 1975VEI 0Perkiraan geologi
    1975-04-26 – 1975-04-29
  4. 1970 (±1 tahun)VEI 0Perkiraan geologi
    1970-07-02 – Berlangsung
  5. 1964VEI 2Perkiraan geologi
    1964-04-14 – Berlangsung
  6. 1944VEI 0Perkiraan geologi
    1944-08-20 – Berlangsung

Tautan eksternal

⚠ Untuk referensi saja. Bukan untuk tanggap darurat.