Do you know the difference between a Tsunami Warning, a Tsunai Watch and a Tsunami Advisory? There are critical differences between these levels of warnings. The response level varies for each category. To learn the definitions of each go to
http://www.lacoa.org/PDF/HazardsandThreats/Tsunami/HAZARDS%20AND%20THREATS%20-%20TSUNAMI%20TERMINOLOGY%20AND%20DEFINITIONS.pdf