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Tumalo volcano

Lava dome(s) 1955 m / 6414 ft
Oregon, United States, 44.1°N / -121.54°W
Current status: (probably) extinct (0 out of 5) | Reports
Tumalo volcano books
Typical eruption style: unspecified
Tumalo volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene)
TimeMag. / DepthDistanceLocation
Thu, 26 Mar 2020
Thu, 26 Mar 21:36 UTCM 1.9 / 1.5 km15 kmExplosion - 5km NNW of Bend, Oregon (USA)
Mon, 16 Mar 2020
Mon, 16 Mar 23:52 UTCM 1.6 / 1.6 km22 kmExplosion - 5km SSE of Bend, Oregon (USA)


The Tumalo volcanic center is the inferred source of large-volume Pleistocene ashflows such as the Desert Spring Tuff, the Bend Pumice and Tumalo Tuff, and the Shevlin Park Tuff. The area contains a large number of rhyolitic domes, such as Melvin Butte, and andesitic cinder cones, such as those in the Triangle Hill area, which are compositionally similar to the Tumalo Tuff (and correlative Bend Pumice) and Shevlin Park Tuff, respectively.
Source: Smithsonian / GVP volcano information

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