Page 3 - Shake Alert News Today

An earthquake warning system was put to the test this week when phones started sounding off across Northern California.

A deadly 6.4 magnitude earthquake in Humboldt County triggered a massive emergency response Tuesday. The California Office of Emergency Services is working to support teams in the area helping with damage control and rescue operations.

A 6.4-magnitude earthquake shook northern California early Tuesday morning, knocking out power for tens of thousands of customers in Humboldt County.

Some received the alert seconds before they felt Tuesdays earthquake off the coast of Humboldt County.

A magnitude 6 earthquake struck in the Ring of Fire, just 750 miles off the coast of California on Tuesday evening - the largest earthquake to hit the area since a 6.0-magnitude tremor hit Napa in 2014.

Half a million Oregonians are expected to participate in the Great Oregon Shakeout Drill on Oct. 20 at 10:20 a.m., according to the Oregon Department of Emergency Management.

The USGS’ ShakeAlert earthquake early warning system worked as planned during Tuesday night’s Santa Rosa earthquakes, giving North Bay residents time to seek cover.

A 4.2 magnitude earthquake struck a part of Northern California Friday evening.

USGS reported a total of four earthquakes throughout the same day near Brawley.

We're taking a closer look at the new technology used to send out an emergency alert during an earthquake.