Helens, Rainier are tops among most dangerous U.S. volcanoes

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Geologic Hazards

Helens, Rainier are tops among most dangerous U.S. volcanoes

Written by Randy Post

Friday, 02 March 2007

The Yakima Herald Republic has an interesting article on volcanic hazards of Mt. Rainier. Apparently the USGS has plans to increase monitoring with additional seismographs, GPS units, and some kind of laser surveying targets. Read on for a link to the article.

Read the full article here.

Apparently in October 2006, seismologists say there was a slight scare caused by gaps in the coverage of the seismographs. A 4.5 magnitude earthquake was determined to have struck the eastern edge of the volcano. Based on the available seismograph data, it appeared that aftershocks were moving closer to the center of the volcano, a possible sign of bigger things to come. It turned out to be a "false clue" created by gaps in the network.

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