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.
Actions to Consider