A tsunami is a series of destructive waves generated by an undersea disturbance such as an earthquake.
Know the Terms
Tsunami Advisory - An earthquake has occurred which might generate a tsunami. Hourly bulletins advising of the situation will be issued.
Tsunami Watch - A tsunami was or may have been generated, but is at least two hours away. Prepare for possible evacuation if the watch is upgrade to a warning.
Tsunami Warning - A tsunami was or may have been generated, which could cause damage. People within the warned area are strongly advised to evacuate.
Warning and Danger Signs
Actions to Consider
Did You Know... The enormous energy of a tsunami can lift giant boulders, flip vehicles, and demolish houses.
Flooding can also occur during this event. Please review handouts on "floods". Contact your local or Installation's Office of Emergency Management for more information.
Landslides and Mudflows
Thunderstorms and Lightning
Nuclear Power Plants