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Alameda County, Mendocino County, San Bernadino County, and San Mateo County are all featured in the top 10, at fifth, ...
Southern California typically experiences more than 10,000 earthquakes per year, according to the United States Geological ...
where an earthquake is caused by human activity. In the south-central United States, a significant number of recent earthquakes are thought to be caused by humans. The chart below shows the ...
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