“Northern California’s Magnitude 4.2 Earthquake Sparks ShakeAlert Activation in the Bay Area”
“In Northern California, a Magnitude 4.2 Earthquake Sets Off ShakeAlert” On Wednesday, a magnitude 4.2 earthquake shook up Northern California, prompting the activation of a “ShakeAlert” system throughout the region.
This seismic event occurred near the small community of Isleton in Sacramento County around 9:30 a.m. on Wednesday, as reported by the U.S. Geological Survey. Fortunately, there were no immediate reports of injuries or damage resulting from the earthquake.
Isleton’s city manager, Chuck Bergson, shared his experience during the quake, mentioning that some rumbling was felt at City Hall, but it didn’t cause significant concerns. He also mentioned that the levees along the Delta appeared to remain intact.
This earthquake happened just a day before the annual Great ShakeOut, a global preparedness drill for earthquake scenarios, where emergency systems are put to the test. On Thursday, as part of this initiative, thousands of MyShake app users will receive a test alert for earthquakes.
Coincidentally, this earthquake struck one day after the 34th anniversary of the devastating Loma Prieta earthquake that severely impacted the San Francisco Bay Area in 1989, claiming the lives of 63 people and injuring nearly 3,800 more. The total damage from the Loma Prieta earthquake was estimated at up to $10 billion.
The effects of Wednesday’s earthquake were felt in various San Francisco Bay Area suburbs, including Antioch, Concord, Fairfield, Martinez, Orinda, Danville, and even Berkeley, home to the University of California. Consequently, a “USGS ShakeAlert” was issued, reaching potentially millions of residents in Northern California, extending from Sacramento in the north to San Jose and Silicon Valley in the south. The alert advised recipients to “Drop, Cover, Hold on,” and it’s worth noting that any earthquakes exceeding a magnitude of 4.0 automatically trigger such alerts, as per the USGS’s policy.
Moreover, the earthquake briefly led to a temporary suspension of Bay Area Rapid Transit (BART) train services in the affected area.