Largest earthquake in nearly 20 years rattles Southern California

7-year-old twin sisters Zoe Pineda, left, and Tala Pineda help pick up books at the Ridgecrest Library Friday morning.

Carmen Rivera, 65, walks her dog Ash by a mobile home damaged during Thursday’s 6.4 earthquake in Ridgecrest.

Susan Manson, 53, left, helps her mother Charlotte Sturgeon, 78, retrieve photos and important documents from Sturgeon’s red-tagged mobile home at Torusdale Estates on Ward Avenue in Ridgecrest.

Bill Sturgeon, 79, checks the foundation of his mobile home at Torusdale Estates in Ridgecrest on Friday morning.

Charles Hawkins, left hugs his mother Elizabeth at his Ridgcrest area mobile home. His wife was injured in the earthquake and his mobile home was damaged.

Charles Hawkins tries to move a dresser off his bed after an earthquake severely damaged his home near Ridgecrest.

Clean up continues at Eastridge Market hours after a 6.4 magnitude earthquake shook the area.

A patient is being evacuated from Ridgecrest Regional Hospital after city was hit by a 6.4 earthquake Thursday morning.

Amer Chaudhry, 19, in wheel chair, at Ridgecrest Regional Hospital waits to be checked by a doctor, after getting hurt while running down stairs at her home when the earthquake hit.

Patients rest under a shade of tent after being evacuated from Ridgecrest Regional Hospital after city was hit by a 6.4 earthquake.

Andy Randolph and his son William stop for photos of a crack in California State Route 178 hours after a 6.4 magnitude earthquake struck the Searles Valley area.

Kern County firefighters carry cots while people leave Ridgecrest Regional Hospital.

U.S. Geological Survey seismologist Robert Graves points to a map showing where two fault lines caused the earthquake during a news conference at Caltech in Pasadena.

Lucy Jones explains the nature of how the earthquake formed at a news conference at Caltech in Pasadena.

Seismologists Robert Graves and Lucy Jones speak at a news conference at Caltech in Pasadena in response to the 6.4 magnitude earthquake that struck near Ridgecrest, Calif.

Seismologists Robert Graves and Lucy Jones speak at a news conference at Caltech in Pasadena in response to the 6.4 magnitude earthquake that struck near Ridgecrest, Calif.