Earthquake today: Magnitude 3.7 quake strikes San Ramon, East Bay rattled by two back-to-back tremors
A report by the US Geological Survey stated that the first quake, a 3.7-magnitude tremor, was detected at about 6.27 am and was located just over two miles southeast of San Ramon.
The East Bay was rattled by two earthquakes within a span of two minutes on Monday. A report by the US Geological Survey stated that the first quake, a 3.7-magnitude tremor, was detected at about 6.27 am and was located just over two miles southeast of San Ramon.
The second quake, measuring 3.3 in magnitude, struck two minutes later with a nearly identical epicentre. There were no immediate reports of injuries or significant damage.
The East Bay region, where San Ramon is located, had experienced seismic activity late on Friday afternoon. The earthquake occurred about 3 miles north of the Dublin area. Meanwhile, on November 9, eight earthquakes struck the region within a span of three hours.
Earthquakes with a magnitude above 2.5 are typically strong enough to be felt by people close to the epicentre, but they rarely cause damage to buildings. The Bay Area continues to be seismically active, situated along the Calaveras and Hayward fault lines, both of which are known for frequent minor tremors.
Where is San Ramon located?
San Ramon is a city located in Contra Costa County, California – in the Ramon Valley, about 35 miles east of San Francisco in the East Bay Area. The area is also home to major companies such as Chevron and SAP.
Meanwhile, in November, a 6.0-magnitude earthquake struck Susitna, Alaska, on Thanksgiving Day.
The quake occurred at 8:11 am, about 26 miles southwest of Willow and roughly 37 miles from Anchorage, according to the Alaska Earthquake Center.
The US Geological Survey (USGS) recorded the earthquake at a shallow depth of 42.8 miles (69 km). More than 4,600 residents in Alaska reported feeling the shaking, as per the "Did You Feel It" page on the USGS website.
The strongest earthquakes in Southcentral Alaska are typically caused by the megathrust fault, which marks the contact zone between the subducting Pacific Plate and the overriding North American Plate.
On average, Alaska experiences about half a dozen magnitude-6 or greater earthquakes each year. Communities along the coast also faced the additional threat of tsunamis, triggered either by earthquakes or landslides.