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Yellowstone Vulkan
Super-Volcano, calderas 2805 m / 9,203 feet
Wyoming, USA, 44.43°N / -110.67°W
Aktueller Status: normal / ruhend (1 von 5)
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Ausbrüche des Yellowstone:
1350 BC ± 200 years
caldera-forming eruptions 70,000 BP, 160,000 BP, and 640,000 years ago (BP)
Typische Aktivität:
explosive
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Yellowstone volcano: activity updates

Yellowstone caldera volcano (Wyoming, USA): monthly update - slight increase in earthquake swarms, deflation

Friday Jan 04, 2013 07:18 AM | VON: T

During the month of December 2012, the University of Utah reports 101 earthquakes were located in the Yellowstone National Park region with a notable increase of earthquake swarms.
The largest earthquake was a magnitude 2.6 event on December 15, 2012, at 6:25 AM MST, located about 10 miles north of Pahaska Teepee, WY. Dec. 9 through Dec. 10 a small swarm of 11 events was located 9 miles north northwest of West Yellowstone, MT with magnitudes 0.3 to 2.1. On Dec. 13 a small swarm of 12 quakes was recorded about 13 miles east of Old Faithful, YNP with magnitudes 0.3 to 2.1. Also on Dec. 13 a small swarm of 12 quakes was recorded between Lewis and Shoshone Lakes with magnitudes 1.4 to 2.5. Overall Yellowstone earthquake rates are normal for this monthly reporting period.
Slow subsidence of the caldera, which began in early 2010, continues. Current deformation patterns at Yellowstone are well within historical norms.
(Yellowstone Volcano Observatory / USGS monthly update)
Vorherige Nachrichten
Time and depth of quakes at Yellowstone during Oct 2012
Friday, Nov 02, 2012
Yellowstone earthquake activity remains at background levels. ... [mehr]
Current seismic signal b207 station (Univ. Utah / USGS)
Sunday, Oct 07, 2012
A small earthquake swarm occurred under the Yellowstone caldera. The quakes are few and very small and no indicator of an impending eruption. It completely falls under what is normal behavior of an active caldera. [mehr]

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