Belmont Club

By Richard Fernandez

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Old Unfaithful

January 10, 2009 - 7:30 pm - by Richard Fernandez
littletim
2009-01-10 22:01:51

No supervolcano this week. The Yellowstone swarm is dying out. The number of quakes has declined significantly, and there have been none in the last 24 hours. Here’s the latest map of quakes:

http://earthquake.usgs.gov/eqcenter/recenteqsus/Maps/US2/43.45.-111.-109.php

One of the prior posters commented about the effect of past erruptions on the Oregon landscape. I have not been to Oregon, but I imagine it’s a bit like the geography around Mt. Shasta in far Northern California. If one looks closely while driving past Mt. Shasta on Highway 5, evidence of powerful erruptions abound for tens of miles. The Long Valley caldera on the east side the Sierra Mountains in California is also a fascinating place to visit. Like Yellowstone, it’s a sleeping supervolcano. As one would expect with a supervolcano, interesting geologic features abound, but it lacks the spectacular natural wonders of Yellowstone. As I recall, there was some concern 10 or 15 years ago when a notable rise in the ground level of the Long Valley calera was detected. Fortunately, that concern has faded away — for now.