2026年2月2日,CA的San Ramon附近发生90分钟的地震群,发生4.2级地震,震撼了Bay地区,没有造成任何损坏或伤害。 A 90-minute earthquake swarm near San Ramon, CA, with a magnitude 4.2 quake, shook the Bay Area on Feb. 2, 2026, causing no damage or injuries.

2026年2月2日,加利福尼亚州San Ramon地区发生一连串的13至17次小地震,测得程度最高的是4.2级,发生于San Ramon市中心东南约2.5英里处。 A series of 13 to 17 small earthquakes struck the San Ramon area in California on February 2, 2026, with the strongest measuring magnitude 4.2 and occurring about 2.5 miles southeast of downtown San Ramon. 群落持续时间不到90分钟, 包括数起3.0级以上的地震, 位于Calaveras断层附近, 在包括旧金山、奥克兰和里士满在内的海湾地区。 The swarm, lasting less than 90 minutes, included multiple quakes of magnitudes 3.0 and above, centered near the Calaveras Fault, and was felt across the Bay Area, including San Francisco, Oakland, and Richmond. 没有关于损坏或受伤的报告,但BART由于安全检查受到短暂延误。 No damage or injuries were reported, but BART experienced brief delays due to safety inspections. 该活动是2025年11月以来持续地震群的一部分,在C contra Costa县记录了87次2.0级或以上的地震。 The activity is part of an ongoing earthquake swarm since November 2025, with 87 quakes of magnitude 2.0 or higher recorded in Contra Costa County. 科学家们继续研究这种模式,指出这些群落并不一定预测更大的地震。 Scientists continue studying the pattern, noting such swarms do not necessarily predict larger quakes.