Bachelor volcano

estratovolcán 2763 m / 9,065 ft
Oregon, Canada and USA (mainland), 43.98°N / -121.69°W
Current status: normal or dormant (1 out of 5)

Mount Bachelor (formerly known as Bachelor Butte) in central Oregaon is a symmetrical stratovolcano, which is part of a 25 km long volcanic chain SE of South Sister.
The chain is aligned N-S and consists of the main volcano of Mt Bachelor itself, cinder cones, small shield volcanoes, and lava flows. The youngest eruption (dated by comparison with known dates of overlying and underlying layers) occurred about 6000 years ago at the Egan scoria cone on the north flank. It produced a lava flow that overlies (=is younger than) ash from the 6850 year BP eruption of Crater Lake.

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Typical eruption style: Explosivos
Erupciones del volcán Bachelor: 5800 BC ± 1000 (tephrochronology)

Latest nearby earthquakes

Fecha / HoraRevista / ProfundidadDistancia/Ubicación
Tue, 8 Jun 2021 (GMT) (2 temblores)
8 Jun 2021 02:08:31 GMT
0.7

0.1 km
46 km (29 mi)
21 Km ESE of Three Rivers, Oregon
8 Jun 2021 02:07:39 GMT
0.7

0.7 km
45 km (28 mi)
20 Km ESE of Three Rivers, Oregon
Sun, 6 Jun 2021 (GMT) (1 terremoto)
6 Jun 2021 16:13:49 GMT
0.5

0.4 km
46 km (29 mi)
21 Km ESE of Three Rivers, Oregon
Fri, 4 Jun 2021 (GMT) (1 terremoto)
4 Jun 2021 01:17:27 GMT
0.7

0.6 km
46 km (29 mi)
21 Km ESE of Three Rivers, Oregon

Background

The young basaltic-andesite and basaltic Mount Bachelor volcanic chain was formed in 4 eruptive phases dating back to only about 18,000-15,000 years ago.
The NNW-SSE chain of cinder cones south of Mount Bachelor had been built by about 12,000 years before present. Mount Bachelor itself is one of the youngest edificies on the chain.


See also: Sentinel hub | Landsat 8
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