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Earthquakes are uncommon but not unusual for the Delta, which has seen more than 100 earthquakes in the upper portions of the Sacramento-San Joaquin system since 1965, though most were magnitude 3 ...
A small earthquake rattled the Delta region of Northern California. Here’s what you need to know about Sacramento County’s risk.
A moderate earthquake Thursday afternoon shook a wide swath of Northern California, rattling homes and businesses from Redding to Elk Grove and shaking workers in downtown Sacramento high-rises.
A 7.0 magnitude earthquake was reported off the coast of Northern California on Thursday, according to the United States Geological Survey. The epicenter of the "strong" quake was off the coast ...
According to the USGS, "ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes. These maps are used by federal, state, and local organizations, both public and private, for post-earthquake response and recovery, public and scientific information, as well as for preparedness exercises and ...
These efforts are all aimed at mitigating the risks of earthquakes to mankind; and they are made possible by the fine international cooperation that has long characterized the science of seismology. Using a combination of automated tools and human review, NEIC issues moment magnitude and location information as soon as possible after a quake.
The Imperial fault was the source of the 1940 El Centro earthquake and the 1979 Imperial Valley earthquake. There was more than 30 km (19 mi) of surface rupture associated with the 1979 event along the northwest trending Imperial fault from just north of the Mexico–United States border to an area south of Brawley and the BSZ was found to have ...
Aftershocks continued Friday after a strong earthquake that prompted a tsunami warning for parts of the U.S. West Coast Thursday. "At this time, there have been 59 earthquakes of magnitude three ...