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Scientists convinced of tie between earthquakes and drilling

LOS ANGELES – With the evidence coming in from one study after another, scientists are now more certain than ever that oil and gas drilling is causing hundreds upon hundreds of earthquakes a...

Magnitude-4.7 quake rattles residents

PHOENIX – A moderate earthquake jostled residents of northern Arizona – a region where quakes are frequent but usually don’t produce much damage or alarm. The U.S. Geological Surv...

Strong Napa, Calif., quake causes injuries, damage

NAPA, Calif. – The San Francisco Bay Area’s strongest earthquake in 25 years struck the heart of California’s wine country early Sunday, igniting gas-fed fires, damaging some of the region’s...