Northern California, earthquake and Richter magnitude scale

Back-to-back earthquakes shake Northern California, seismologists say. ‘Pretty strong’
Earthquakes’ sudden, rapid shaking can cause fires, tsunamis, landslides or avalanches. They can happen anywhere, but they’re most common in Alaska, California, Hawaii, Oregon, Puerto Rico and Washington, according to the Department of Homeland Security.
3.4-magnitude quake shakes residents in Northern California town, seismologists say
A 3.4-magnitude earthquake rattled the Northern California area, the U.S. Geological Survey reported. The 4-mile deep quake hit about 5 miles northeast of San Martin in the Santa Clara Valley at 12:35 p.m. on Friday, Feb. 7, according to the USGS. More than 150 people as far away as San Mateo and Gilroy reported feeling the tremor to the agency.
Preliminary 4.1 magnitude earthquake strikes Northern California coast
A preliminary 4.1 magnitude earthquake struck off the coast of Northern California early Tuesday morning, according to the United States Geological Survey.
Magnitude 4.1 earthquake shakes Northern California communities
PETROLIA, Calif. – A magnitude 4.1 earthquake shook some Northern California communities early Tuesday morning. According to the U.S. Geological Survey (USGS), a magnitude 4.1 earthquake was reported about 13 miles west of Petrolia in the Pacific Ocean just after midnight Tuesday at a depth of about 12 miles.
California Shaken By Several Recent Earthquakes
Parts of Northern and Southern California have felt light shaking from earthquakes early this week. Here's how strong they were and which cities were closest to the epicenters.
California Hit With Another Earthquake
Another earthquake has hit California. A 3.7 magnitude earthquake struck the Malibu area late Friday at approximately 11:44 p ...
California rattled by 5 earthquakes in one day, including back-to-back Bay Area rumbles
Five minor earthquakes shook California on Thursday, including two rumbles just minutes apart in the San Francisco Bay area, ...
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Series of quakes, including a 4.5 magnitude, jolt California North Coast near Eureka
A moderate earthquake, followed by three smaller quakes, shook California’s Northern Coast in Humboldt County Tuesday ...
Multiple earthquakes felt in California's Bay Area on Thursday, topping out at magnitude 3.7
Multiple earthquakes shook California's Bay Area Thursday. They were recorded near Hayward, around 20 miles southeast of ...
No injuries reported as earthquakes rattle Southern California and West Texas
Fire- and storm-ravaged Malibu, Calif., endured two relatively minor earthquakes followed by another in Idyllwild Saturday ...
At least 4 earthquakes strike near Hayward, USGS says
Did you feel them? At least four earthquakes, ranging from preliminary magnitudes 2.7 to 3.7, struck near Hayward on Thursday, according to the U.S. Geological Survey ...
2.7 magnitude earthquake hits near Highland, days after region shaken by three temblors
It happened just before 6:25 p.m. and was centered near Highland, according to the United States Geological Survey​.
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California fears ‘Big One’ coming after seven earthquakes rock state
The California coast was shaken by seven earthquakes in less than 24 hours, raising concerns among residents about the potential arrival of "The Big One." The United States Geological Survey (USGS) ...