From Napa to Santa Cruz, people felt the jolt of a 3.9 earthquake Monday. The epicenter was near Dublin on the Calaveras ...

Previous reports from the USGS have noted the danger posed by the Hayward fault. Though less of a household name than the San Andreas fault, the Hayward fault poses a significant risk, the agency ...

A USGS map shows where in California 2.5 magnitude (or greater) earthquakes were recorded in the last seven days—the San Andreas Fault is represented as a thick red line. A USGS map shows where ...

According to the United States Geological Survey (USGS), the quake struck at approximately 5:03 a.m. PST near the city of Hayward ... occurred along the San Andreas Fault. That second quake ...

Previous reports from the USGS have noted the danger posed by the Hayward fault. Though less of a household name than the San Andreas fault, the Hayward fault poses a significant risk, the agency said ...