2025年12月20日圣拉蒙附近发生九次地震,包括一次4.0次巨震,造成BART延迟,但没有人员受伤或重大损坏。 Nine earthquakes, including a 4.0-magnitude quake, struck near San Ramon on Dec. 20, 2025, causing BART delays but no injuries or major damage.

2025年12月20日, San Ramon附近的东湾发生至少九次地震, 最地震发生时间为晚上7点56分。 A series of at least nine earthquakes, including a 4.0-magnitude tremor, shook the East Bay near San Ramon on December 20, 2025, with the strongest occurring at 7:56 p.m. 震源位于城市东南部, 震源包括多次地震, 震级范围为2. 1至4. The swarm, centered southeast of the city, included multiple quakes ranging from 2.1 to 4.0 in magnitude, all shallow and felt across the region. 没有伤亡或重大损坏的报告,尽管BART因安全检查受到延误。 No injuries or significant damage were reported, though BART experienced delays due to safety inspections. 美国地质调查局证实,这一活动是长期地震群的一部分,上个月在San Ramon附近记录到150多起地震。 The U.S. Geological Survey confirmed the activity is part of a prolonged seismic swarm, with over 150 quakes recorded near San Ramon in the past month. 科学家说,这些群群是常见的,没有预测更大的地震,尽管它们强调在易发生地震的湾地区不断进行备灾。 Scientists say such swarms are common and not predictive of larger quakes, though they emphasize ongoing preparedness in the earthquake-prone Bay Area.