A trio of earthquakes hit the San Ramon region Saturday night after the East Bay area experienced a jarring Friday night that saw at least 18 earthquakes shake the region, according to the U.S. Geological Survey.
Saturday saw a 3.9 magnitude earthquake in the San Ramon area strike at around 6:30 p.m., followed by 2.8 and a 3.0 magnitude earthquakes shortly after. Friday night, at least 18 quakes shook the area, ranging from 4.0 in strength to 1.4.
Dozens of quakes have rattled San Ramon residents over the past several months. A Chronicle analysis found that the 2025 swarms rank among the largest of the past 50 years…