The annual Great California ShakeOut, the world’s largest earthquake safety drill, takes place Thursday, Oct 20.

• You can practice the earthquake response procedure from work, school or home.
• If you register online, you will be counted in the final tally of participants.
• The drill will start at 10:20 a.m. and last for one minute.

Here’s what to do in an earthquake

California residents can also download the free MyShake app to receive earthquake warnings. The app is a component of Earthquake Warning California, the country’s first publicly available, statewide warning system that could give California residents crucial seconds to take cover before you feel shaking. Earthquake Warning California uses ground motion sensors from across the state to detect earthquakes before humans can feel them and can notify you to take cover in advance of an earthquake.