Goat Rocks Volcano
Updated: Apr 20, 2024 09:52 GMT -
stratovolcano 2494 m / 8,182 ft
Washington State (Canada and USA (mainland)), 46.5°N / -121.45°W
Current status: (probably) extinct (0 out of 5)
Washington State (Canada and USA (mainland)), 46.5°N / -121.45°W
Current status: (probably) extinct (0 out of 5)
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.
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Goat Rocks volcano eruptions: 3 million - ca. 500,000 years ago
Latest nearby earthquakes
| Time | Mag. / Depth | Distance / Location | |||
| Apr 18, 03:42 am (Los Angeles) | 0.9 13 km | 26 km (16 mi) to the W |  Lewis County, 57 mi southeast of Chebaulip, Pierce County, Washington, United States | Info | |
Background
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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