Health Editor’s Note: An earthquake or 7.1 magnitude hits Southern California only one day after a 6.4 quake. This article might be about a movie but California has earthquakes all the time. Scary…..Carol
What Will Really Happen When San Andreas Unleashes the Big One?
by Sarah Zeilinski Smithsonian.com
A giant earthquake will strike California this summer. Skyscrapers will topple, the Hoover Dam will crumble and a massive tsunami will wash across the Golden Gate Bridge. Or at least, that’s the scenario that will play out on the big screen in San Andreas.
The moviemakers consulted Thomas Jordan, director of the Southern California Earthquake Center, before they started filming, but “they probably didn’t take much of my advice,” he says. While the actual threats from the Big One are pretty terrifying, they are nowhere near the devastation witnessed by Dwayne “The Rock” Johnson and his onscreen companions. Even the largest of San Andreas’ quakes can’t produce a massive tsunami like the one that swells over San Francisco in the movie. “The really big tsunamis, like the one that hit Japan, are caused by earthquakes that generate a major displacement of the ocean floor,” Jordan says. The San Andreas fault sits far inland, and the land slips past on either side. For that reason, a quake also can’t cause the fault to split apart into a giant chasm as it does in the film. And despite the warnings of distraught movie scientists, even the largest of California’s quakes won’t be felt by anything but seismometers on the East Coast.