Public Safety
image of a phone with the SD Emergency app02:23

SD Emergency App Users Now Can Have Earthquake Early Warning

| 2:11 PM

The County of San Diego’s SD Emergency app is now equipped with ShakeReadySD, an earthquake early warning system. This will let users know if an earthquake has occurred nearby that is likely to cause shaking within seconds and it will urge them to take protective action such as drop, cover and hold on or another appropriate safety measure.

Public Safety
Earthquake seismograph line

Earthquake Preparedness Month Reminds Residents: “Don’t Get Caught Off Guard”

| 12:31 PM

April is Earthquake Preparedness Month in California, and the County of San Diego’s Office of Emergency Services (OES) and California Governor’s Office of Emergency Services (Cal OES) are reminding residents to “not get caught off guard” and have a plan for how to protect themselves in the event of an earthquake.

Public Safety
01:41

Earthquake Early Warning Tested in San Diego County

| 4:16 PM

At 11 a.m. Thursday, cellphones across San Diego County started sounding off with a loud tone used for emergency alerts. It was part of a test of the California Earthquake Early Warning System, also known as ShakeAlert.

Public Safety
Photo of an iPhone with an Emergency Alert text.

County to Use Wireless Emergency Alert to Test Earthquake Warning

| 10:00 AM

The San Diego County Office of Emergency Services together with the California Governor’s Office of Emergency Services and the United States Geological Survey will be conducting a test at 11 a.m. on June 27 using the Wireless Emergency Alert system. The test will affect all mobile phones in the county area and will evaluate if the system could be effectively used for the California Earthquake Early Warning, also called a ShakeAlert.