As part of Tsunami Awareness Week, residents are encouraged to learn how to respond in the event of a tsunami off any coast including San Diego.
While historically, San Diego has not experienced a devastating tsunami after a strong earthquake such as Chile and America Samoa, it is still important for residents to learn how to recognize the signs of a tsunami and know what to do.
A tsunami is a series of fast-moving, powerful ocean waves that can cause a rapid innundation of low-lying coastal areas. The waves can result in damage or, in severe cases, sweep people away, and destroy buildings and cars. The tsunami is usually the result of a strong far-source or offshore earthquake, but it could also be caused by an offshore landslide.
You do not need to wait for an official warning to react, if you are on or near the coast and feel a strong earthquake that shakes for 20 seconds or longer, or if you're at the beach and see water start to recede from the shore suddenly. If this happens, you should immediately move inland at least a mile, and head for higher ground. If you are warned or advised to stay out of the water and off the beaches for safety purposes, please listen to authorities.
For more information on tsunamis, visit www.readysandiego.org, or review these brochures at http://www.co.san-diego.ca.us/oes/docs/Tsunami_Risk_San_Diego_2005.pdf or http://www.stormready.noaa.gov/tsunamiready/resources/Tsmi_Brochure10.pdf.