Big earthquakes rattle Southern California

A house destroyed by a powerful magnitude 7.1 earthquake, triggered by a 6.4 the previous day, is seen at night near the epicenter in Trona, July 6. REUTERS/David McNew

A fault line crack in Highway 178 is opened by a powerful magnitude 7.1 earthquake, triggered by a 6.4 the previous day, near the epicenter in Trona, July 6. REUTERS/David McNew

Merchandise lies scattered throughout the Pioneer Point Market after a powerful magnitude 7.1 earthquake broke, triggered by a 6.4 the previous day, near the epicenter in Trona, July 6. REUTERS/David McNew

Cracks emerge on a road after an earthquake broke in Trona, July 6. USGS/via REUTERS

Cracks are seen in the street next to Trona Community Church after a powerful magnitude 7.1 earthquake broke, triggered by a 6.4 the previous day, near the epicenter in Trona, July 6. REUTERS/David McNew

A girl prepares a tent outside the family home after an earthquake near Ridgecrest, July 6. REUTERS/Gene Blevins

A damaged chimney remains on a roof after an earthquake near Trona, July 6. REUTERS/Gene Blevins

Community Emergency Response Team (CERT) disaster response volunteers deliver water to the community after a powerful magnitude 7.1 earthquake broke, triggered by a 6.4 the previous day, near the epicenter in Trona, July 6. REUTERS/David McNew

Fissures that opened up under a highway during a powerful earthquake that struck Southern California are seen near the city of Ridgecrest, July 4. REUTERS/David McNew

A house burns after an earthquake in Ridgecrest, California, July 5. Jessica Weston/Daily Independent via REUTERS

Waves in a swimming pool are pictured during the earthquake in Ridgecrest, California, July 5, in this picture grab obtained from a social media video. TWITTER @RYLXAN/via REUTERS

Toppled bottles of wine are seen after an earthquake at Eastridge Market in Ridgecrest, California, July 6. REUTERS/Alan Devall

Firefighters work on extinguishing a fire after an earthquake in Ridgecrest, California, July 6. REUTERS/Alan Devall

The ruins of a house that burned after a powerful earthquake in the city of Ridgecrest, California. REUTERS/David McNew

Kaitlin Alexander cleans up broken bottles at the 1 Stop Market liquor store in Ridgecrest, California. REUTERS/David McNew

Fissures that opened up under a highway near Ridgecrest, California. REUTERS/David McNew

A fire is seen following an earthquake in Ridgecrest , California. Ben Hood via REUTERS

A house is damaged from a powerful earthquake northeast of Ridgecrest, California. REUTERS/David McNew

A man looks into a fissure that opened in the desert near Ridgecrest, California. REUTERS/David McNew

People buy goods at the front door of the 1 Stop Market liquor store in Ridgecrest, California. REUTERS/David McNew

A house is seen damaged from a powerful earthquake northeast of Ridgecrest, California. REUTERS/David McNew

Linemen repair lines that were broken during a powerful earthquake northeast of Ridgecrest, California. REUTERS/David McNew

Broken glass is seen after a powerful earthquake near Ridgecrest, California. REUTERS/David McNew

Wildland firefighters pass by hospital equipment being set up outside the Ridgecrest Regional Hospital in Ridgecrest, California. REUTERS/David McNew

Food and drink products are seen lying on the floor inside a grocery store in Ridgecrest. MIKE C / @YOUNGMICSIZZLE via REUTERS

People clean up broken bottles at the 1 Stop Market liquor store in Ridgecrest, California. REUTERS/David McNew