A new seismological study found that a naturally-occurring injection of underground fluids triggered an earthquake swarm near Cahuilla, California, that lasted for nearly four years. The research shows an evolving understanding of how fault architecture drives…
An unseasonal storm system brought snow to higher elevations of California on Monday, May 18, 2020, while thunderstorms developed through the foothills, as well as the Sacramento and San Joaquin Valleys on Tuesday, May 19. According to the National Weather Service…
A powerful, slow-moving storm continues affecting parts of California on Monday, April 6, 2020, with significant mountain snow, heavy rain, and gusty winds. Up to 127 mm (5 inches) of rain fell in Santa Barbara County, causing localized flooding. A record rainfall…
Heavy rains drenched parts of Southern California on March 22 and into March 23, 2020. The coastal mountain ranges were also hit by the widespread rain, while some beneficial rain and snow fell in the southern San Joaquin Valley and the Sierra Nevada. Southern…
A large and slow-moving late-season winter storm started dumping significant heavy snow on California's Sierra Nevada on Saturday, March 14, 2020. Up to 1.8 m (6 feet) of snow is expected in the following days, replenishing the mountains following the…
Drought conditions are returning to California as major rain and significant mountain snow had not fallen since December 2019. Sacramento and San Francisco have not seen a drop of rain in February 2020, which is usually one of the wettest months of the year for the…
California's new statewide earthquake early warning system– the MyShake app– has sent out its first public alert on Tuesday, December 17, 2019. The warning was sent for M4.3 tremor that took place in Monterey and San Luis Obispo counties, along the San Andreas…
Scientists have discovered thousands of mysterious holes in the seabed off Big Sur, California. Researchers from the Monterey Bay Aquarium Research Institute (MBARI) were surveying the deep seafloor off Big Sur when they found the strange holes. The bigger holes…
Heavy snow blanketed the Antelope Valley in California as a storm hit the high desert area on November 28, 2019. Palmdale saw more than a dusting of snow with over 76 mm (3 inches) covering the region, while some parts of Lancaster saw more than 127 mm (5 inches) of…
San Francisco registered 8.8 °C (48 °F) on Thursday, November 28, 2019, and tied with November 27, 1896, for the coldest November day on record. Meanwhile, North Bay dealt with below-freezing temperatures overnight, with Novato Airport hitting -5 °C (23…
