Advertisement
 
(Page 2 of 2)

Tsunami's effects in California offer clues about future, more powerful seismic events

Researchers are gathering data from the tsunami damage in Northern California to gain a more detailed understanding of how a powerful earthquake or undersea landslide could trigger a tsunami and what those waves could do.

March 20, 2011|By Abby Sewell, Los Angeles Times

"A tsunami is not what's going to keep me up at night worrying — it's going to be more of the earthquake threat itself," said Tony Gioiello, chief harbor engineer at the Port of Los Angeles.

Tsunami inundation maps put forth by the state show the ports at risk of flooding, but a study commissioned by the ports found little risk that a tsunami would push water above the level of the piers. David Dykstra, a coastal scientist who worked on the study, said in any tsunami scenario, he would not expect to see a water level fluctuation at the ports of much more than 5 feet.

Photos: Unrelenting crisis grips Japan

But even if piers stay above water, fast currents induced by rising water levels can snap mooring lines and sink or set boats adrift, endangering workers and beachgoers. Santa Catalina Island, for instance, saw docks torn apart and boats capsized by the recent speeding currents, even though the change in water level was minimal.

"One of the problems is we will never know until it happens," Synolakis said.

abby.sewell@latimes.com

Advertisement
Los Angeles Times Articles
|
|
|