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Scientists say ShakeAlert warning system 'worked exactly as it should have'
The USGS says ShakeAlert detected a strong one. "Intensity level of shaking as high as intensity 8.0 were estimated by the ShakeAlert system," said Robert de Groot with USGS. ShakeAlert is ...
KRON4 News3y
USGS explains why ShakeAlert warned Bay Area residents of Truckee earthquake
However, some folks here in the Bay received a warning alarm from the USGS ShakeAlert System. There was an earthquake over 180-miles away from the Bay Area Thursday night. However, some folks here ...
SFGate24d
Magnitude 4.7 earthquake shakes just north of the Bay Area
The USGS posted on ‘X’ that the New Year’s day shaker was the first time the ShakeAlert system had been activated in 2025.
Sacramento Bee25d
Small earthquake shakes Northern California on New Year’s Day. Where was it located?
A ShakeAlert was issued to cellphone users in portions of Lake, Sonoma, Napa and Mendocino counties, according to the USGS. Wednesday’s temblor was relatively small compared with December’s ...