A new analysis of earthquake rupture directivity provides essential insights for seismic hazard and risk assessments in urban ...
United States Geological Survey scientists have shared maps that show where ash would fall across the US if a Yellowstone ...
A 4.1-magnitude earthquake shook the Los Angeles area in California, the U.S. Geological Survey reported. The 7-mile deep ...
A light, 4.1-magnitude earthquake struck in Southern California on Sunday, according to the United States Geological Survey.