Is the San Andreas fault line the most active in the world?
Aug 17, 2010
in
Earthquake Questions
When I watch USGS’s maps http://earthquake.usgs.gov/earthquakes/recenteqscanv/
I always see a lot of movement near the Southern California Mexico border.
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2 comments
Oana on August 17, 2010 at 1:05 am
Hi
The Ring of Fire is an area where large numbers of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean
About 90% of the world’s earthquakes and 80% of the world’s largest earthquakes occur along the Ring of Fire.
The Ring of Fire is a direct result of plate tectonics and the movement and collisions of crustal plates.
The famous and very active San Andreas Fault zone of California is a transform fault which offsets a portion of the East Pacific Rise under southwestern United States and Mexico. The motion of the fault generates numerous small earthquakes, at multiple times a day, most of which are too small to be felt. The active Queen Charlotte Fault on the west coast of the Queen Charlotte Islands, British Columbia, Canada, has generated three large earthquakes during the 20th century: a magnitude 7 event in 1929, a magnitude 8.1 occurred in 1949 (Canada’s largest recorded earthquake) and a magnitude 7.4 in 1970.
I give you here a link that you can take a look
JR on August 17, 2010 at 1:05 am
The Wasatch Fault is one of the longest and most active faults of its type in the world, and contributes to the Wasatch Front’s designation as having the greatest earthquake risk in the interior of the western United States.
http://www.slcgov.com/utilities/NewsEvents/news1999/news5251999.htm