Endeavour Ridge

Submarine volcano -2050 m / - 6,726 ft
Northeastern Pacific Ocean, Juan de Fuca Ridge, 47.95°N / -129.1°W
Aktueller Status: normal / ruhend (1 von 5)

The Endeavour Segment (or Ridge) volcano is an active oceanic rift zone where the Juan de Fuca and Pacific Plates are spreading apart. It lies near the northern end of the Juan de Fuca Ridge, west of the coast of Washington and SW of Vancouver Island.
The 90-km-long, NNE-SSW-trending Endeavour Ridge segment lies at a depth of more than 2000 m and is the site of vigorous high-temperature hydrothermal vent systems that were first discovered by scientists in 1981.

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Typische Tätigkeit: unspecified
Ausbrüche: 3490 BC (?) 
Letzte Erdbeben in der Nähe: Keine jüngeren Beben

Beschreibung

The northern end of Endeavour Ridge is offset to the east with respect to the West Valley Segment, which extends north to the triple junction with the Sovanco Fracture Zone and the Nootka Fault.
Five major vent fields that include sulfide chimneys and black smoker vents, first seen from the submersible vehicle Alvin in 1984, are spaced at about 2-km intervals in a 1-km-wide axial valley at the center of the Endeavour Ridge. Preliminary uranium-series dates of Holocene age were obtained on basaltic lava flows from Endeavour Ridge, and other younger "zero-age" flows were sampled. Seismic swarms were detected at the Endeavour Ridge in 1991 and 2005.
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Smithsonian / GVP volcano information


Siehe auch: Sentinel hub | Landsat 8 | NASA FIRMS
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