Goat Rocks Vulkan, Washington (Canada and USA (mainland))

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Goat Rocks Vulkan

Schichtvulkan 2494 m / 8,182 ft
Washington, USA (mainland exept Alaska), 46.5°N / -121.45°W
Aktueller Status: (wahrscheinlich) erloschen (0 von 5)

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Typische Aktivität: Explosiv
Ausbrüche des Goat Rocks: 3 million - ca. 500,000 years ago
Letzte Erdbeben in der Nähe:

Zeit	Mag. / Tiefe	Distance	Ort
Sat, 18 May
Sat, 18 May 07:41 UTC	M -0.3 / 3.7 km	0 km	28km NNW of Packwood, Washington
Fri, 17 May
Fri, 17 May 06:28 UTC	M 1.3 / 11.5 km	13 km	26km E of Eatonville, Washington
Fri, 17 May 06:28 UTC	M 0.8 / 12 km	13 km	26km E of Eatonville, Washington
Thu, 16 May
Thu, 16 May 21:26 UTC	M 0 / 3.8 km	1 km	27km NNW of Packwood, Washington
Thu, 16 May 21:25 UTC	M 0 / 3.4 km	1 km	27km NNW of Packwood, Washington

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Goat Rocks is the center a deeply eroded, glaciated volcanic center of a volcanic field 30 km (18 miles) north of Mount Adams, Washnington, USA.

Beschreibung:

Volcanism began approximately 3.2 million years ago with eruption of at least 650 meters of high-silica rhyolite tuff, which is exposed on the east flank of the subsequent Goat Rocks volcano.
Goat Ricks volcano itself was probably build between ca 2.5 - 0.5 million years ago. It produced large volume lava flows, most notably the 1.0 million-year-old Tieton Andesite, which reached ca. 80 kilometers eastward. It is the longest known andesite flow on Earth.
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Source: Wood and Kienle, (eds.), 1990, Volcanoes of North America - United States and Canada: Cambridge University Press., cited on CVO website.

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