A powerful 7.1 earthquake shook Southern California one day after a magnitude 6.4.
As the Ridgecrest earthquakes rattled California, Dr. Lucy Jones translated hard-to-understand science into tangible teaching moments.
A 6.4 earthquake rattled Southern California this morning, yet no public early warning system alerts went out. USGS scientists explained that the system worked, but may have to be adjusted.
A 4.4-magnitude earthquake struck a little more than 2 miles north of La Verne Tuesday, and residents all over the Southland reported feeling the temblor.
Caltech seismologists hope that data from the deadly Montecito mudslides can help them learn how to predict such disasters in the future.