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To: deks

I know its wiki but there are a lot of volcanoes which haven’t erupted in a long long time and I wonder if they could be the reason for all these mini quakes in the west and mid-south

https://en.wikipedia.org/wiki/List_of_volcanoes_in_the_United_States


4 posted on 12/30/2015 12:26:16 AM PST by RginTN
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To: RginTN

“I know its wiki but there are a lot of volcanoes which haven’t erupted in a long long time and I wonder if they could be the reason for all these mini quakes in the west and mid-south”

The presence of a volcano indicates a fracture in the Earth’s crust along which earthquakes are generated. There are far more fractures in the Earth where there are no volcanoes. Many of the Earthquakes in the Midwest are associated with an ancient and buried continental rift along today’s Mississippi River valley. Wherever there is a significant sized river, you’ll typically find a fracture in the Earth’s crust. It is the presence of the fracture which encourages water to run downhill to fill the fracture area and form streams and rivers. Anywhere there is a significant fracture in the crust, there is the opportunity for the fault blocks to shift and generate an earthquake.

Tonight’s earthquake in the vicinity of Victoria, British Columbia, Canada is very likely to be associated with the stress on the continental plates caused by the Pacific continental plate and/or the Juan de Fuca plate diving and melting beneath the North American continental plate. The volcanoes in the Cascade Mountain Range are created by the melting of the marine plate diving underneath the North American plate, melting, and then bubbling up and melting through the crust to form the volcanoes and mountain range.

The Pacific Northwest region is due for another record setting earthquake causing the ground to leap several feet into the air and shake for many minutes at a time, causing mammoth levels of destruction.


5 posted on 12/30/2015 12:47:37 AM PST by WhiskeyX
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