West Crater volcan

champ volcanique 1329 m / 4,360 ft
Washington, Canada and USA (mainland), 45.88°N / -122.08°W
Condition actuelle: normal / en sommeil (1 sur 5)

West Crater volcano is a small andesitic lava dome with lava flows in southern Washington, belonging to a volcanic field extending from Marble Mountain, north of Swift Reservoir, to south of Trout Creek Hill. The field consists mainly of small basaltic and basaltic andesite cinder cones and small shield volcanoes, oriented along a NW-SE zone SE of Mount St. Helens.
The most recent activity occurred about 8,000 years ago and formed the West Crater lava dome, a small cone at Hackamore Creek, and a phreatic crater at the summit of Bare Mountain.
The older, basaltic Trout Creek Hill shield volcano erupted a lava flow about 340,000 years ago that traveled 20 km SE and temporarily dammed the Columbia River.

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Style éruptif tipique: Explosive
Eruptions du volcan West Crater: ca. 8000 years ago

Latest nearby earthquakes

HeureMag. / ProfondeurDistance/Lieu
Wed, 23 Jun 2021 (GMT) (1 séisme)
23 Jun 2021 19:45:55 GMT
1.1

9.2 km
30 km (19 mi)
5 Km WSW of Yacolt, Washington
Tue, 22 Jun 2021 (GMT) (1 séisme)
22 Jun 2021 16:59:18 GMT
0.5

0.1 km
36 km (22 mi)
37 Km NNE of Amboy, Washington
Thu, 17 Jun 2021 (GMT) (1 séisme)
17 Jun 2021 06:19:28 GMT
0.4

0.3 km
37 km (23 mi)
37 Km NNE of Amboy, Washington
Wed, 16 Jun 2021 (GMT) (1 séisme)
16 Jun 2021 03:16:49 GMT
0.7

0.6 km
37 km (23 mi)
37 Km NNE of Amboy, Washington
Sat, 12 Jun 2021 (GMT) (1 séisme)
12 Jun 2021 05:26:54 GMT
0.4

3.8 km
46 km (29 mi)
32 Km SSE of Morton, Washington



See also: Sentinel hub | Landsat 8
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