The USGS has issued its Aftershock Forecast following M7.1 Ridgecrest, CA earthquake at 03:19 UTC on July 6, 2019. An updated version issued 02:55 UTC, July 7 is posted below and marked Update. Over the next 1 week, there is is a 3 % chance of one or more…
A very strong and shallow earthquake registered by the USGS as M7.1 hit Southern California at 03:19 UTC on July 6, 2019 (20:19 local time, July 5). The agency is reporting a depth of 17 km (10.5 miles). EMSC is reporting M7.1 at a depth of 10 km (6.2 miles). This…
A strong and shallow earthquake registered by the USGS as M6.4 hit Central California at 17:33 UTC (10:33 local time) on July 4, 2019. The agency is reporting a depth of 8.7 km (5.4 miles). EMSC is reporting M6.4 at a depth of 2 km (1.2 miles). At least 160…
Sky watchers in the San Francisco Bay Area, California witnessed an extraordinary display of noctilucent clouds (NLCs) on June 9, 2019. As these clouds are typically confined to latitudes above +55 N and San Francisco is at +38 N, this marks one of the…
Tar and what appears to be natural gas has begun to ooze onto the sidewalk on the Miracle Mile near the La Brea Tar Pits, Los Angeles, California on Saturday, June 8, 2019. The La Brea Tar Pits are a group of tar pits around which Hancock Park was formed in urban…
A rare May storm swept through Southern California on May 22 and 23, 2019, bringing heavy rain, hail and even snow to parts of the region. The worst-hit were Inland Empire and eastern central area of Orange County where heavy rain was reported, according to ABC7….
An unusually strong storm for the time of year is affecting the Western U.S., dumping heavy rain and higher elevation snow. Many cities could double or triple their normal precipitation for May, normally a dry month, in just 24 to 48 hours, meteorologists warn. This…
A potent weather system will bring rain, locally, heavy with higher elevation snow to portions of California, southwestern Oregon, and the Northern Rockies. As much as 60 cm (2 feet) of snow may blanket the California mountains above 1.8 km (6 000 feet). Rain and…
Five minor to moderately strong earthquakes were registered at Mendocino Triple Junction, west of Eureka, California at a depth of 10 km (6.2 miles) on May 5, 2019. The strongest was M4.8 detected at 06:46 UTC on May 5. The sequence started with M3.1 at 04:17 UTC,…
Caltech seismologists have identified nearly two million previously unidentified tiny earthquakes that occurred between 2008 and 2017 in Southern California, expanding the region's earthquake catalog by a factor of 10. Their efforts, published online by the…
