Goat Rocks volcano

Updated: Jul 6, 2022 07:55 GMT - Refresh
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)

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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Typical eruption style: Explosive
Goat Rocks volcano eruptions: 3 million - ca. 500,000 years ago
Lastest nearby earthquakes:
TimeMag. / DepthDistance/Location
Tuesday, June 28, 2022 GMT (2 quakes)
Jun 28, 2022 12:00 pm (GMT -7) (Jun 28, 2022 19:00 GMT)
0.2

3.3 km
47 km (29 mi)
7 Km E of Ashford, Washington
Jun 28, 2022 5:56 am (GMT -7) (Jun 28, 2022 12:56 GMT)
1.0

7.3 km
49 km (30 mi)
4 Km E of Ashford, Washington

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.


See also: Sentinel hub | Landsat 8 | NASA FIRMS
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