​GU INSTITUTE OF EARTHQUAKE
PREDICTION

A series of moderate to small earthquakes struck the Geysers, a geologically active area in Northern California south of Clear Lake, on Thursday, according to reports from the U.S. Geological Survey (USGS). The quakes, the strongest of which registered a magnitude of 4.0, occurred near Sonoma County. The USGS said the strongest earthquake occurred at 5:48 a.m., with its epicenter approximately 13.5 miles northeast of Healdsburg. The 4.0 magnitude quake was followed by three s