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A preliminary magnitude 4. 9 earthquake struck near Boulder Creek at 1:41 a.m. April 2. Courtesy U.S. Geological Survey.

An earthquake caused noticeable shaking along the Peninsula early on Thursday morning.

With a preliminary magnitude of 4.9, the quake struck near Boulder Creek at 1:41 a.m. April 2, according to the U.S. Geological Survey. It occurred at an estimated depth of 10.9 kilometers. 

Shaking could be felt in locations across the Bay Area. Residents on social media said they felt the quake as far north as Marin County and on the East Bay. People in Santa Clara and San Mateo counties reported being jolted awake.

“It is a reminder to the public that an earthquake can strike at any time,” said San Mateo County Supervisor Ray Mueller, who focuses on disaster preparedness in the county. 

Charles Harris, a communications officer for the Santa Clara County Office of Emergency Management, said the earthquake was not significant enough for the county to send out an emergency alert. No structural damage has been reported in the county, he said. 

For the most up-to-date information for emergencies, residents of Santa Clara County should sign up for AlertSCC, the county’s emergency alert system, Harris said. Residents should also download the MyShake app, which will send notifications a few seconds or minutes before an earthquake occurs. Residents can also go to preparescc.org for more information about emergencies in Santa Clara county.

Mueller said that residents should make sure to prepare their homes for earthquakes by securing items that could fall to the ground and having a contractor inspect its foundational stability.

During an earthquake, those who are inside should get under a desk or table, or move into a hallway, according to the U.S. Geological Survey. Avoid leaving the building while shaking is occurring. Those who are outside should move into an open space, away from anything that could fall. 

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1 Comment

  1. My cell phone alerted me *after* the earthquake started. Then I had to get up to manually turn the phone off again. 😀

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