This video, adapted from a Pacific Tsunami Warning Center animation, shows every recorded earthquake, in sequence, from January of 1980 to March of 2020 in California and surrounding states. Most earthquakes in the world, including those in the United States, are “interplate” earthquakes that occur at plate tectonic boundaries where large sections of the earth’s crust either grind past each other, pull apart, or slam together. With the exception of the Pacific Coast of Southern California, the c

🚨California: 98 Earthquakes In 24 Hours | Major Fault Zone Southern California’s live USGS map is showing 98 earthquakes in the last 24 hours in the region I am tracking, with many of those tiny tremors lining up along major fault trends. On the surface, 98 sounds extreme, but this is where the deeper story starts. USGS estimates that Southern California averages around 10,000 earthquakes every year. That is roughly 25–30 quakes per day on average, and most of them are so small that nobody feel

Measuring Movement from the Ridgecrest Quake The ground beneath Southern California moved furiously in early July 2019 due to two large earthquakes, one of which was the strongest in the region in at least two decades. Remote sensing scientists are getting better at measuring such events and showing how they disrupt and move the land surface. At 10:33 a.m. Pacific Daylight Time (PDT) on July 4, 2019, an earthquake struck northeast of Ridgecrest, California, which is north of Los Angeles and nort