A local earthquake may generate tsunami waves that can reach shore in minutes. If
you are on the beach or other low-lying area close to the ocean or bay, immediately
evacuate by walking to higher ground if:
- Officials issue a tsunami warning and order evacuations.
- You hear the Outdoor Warning System.
- The earth shakes so much that you can’t stand.
- Shaking lasts longer than 20 seconds; and/or
- You notice water receding from the shoreline.