Southern California shaken by powerful earthquake

Magnitude 6.4 earthquake strikes near desert city of Ridgeway, setting off fires

This handout picture obtained courtesy of Rex Emerson taken shows broken bottles and other goods in a store in Lake Isabella, California after a 6.4 magnitude quake hit Southern California. Photograph: HO/AFP/Getty Images
This handout picture obtained courtesy of Rex Emerson taken shows broken bottles and other goods in a store in Lake Isabella, California after a 6.4 magnitude quake hit Southern California. Photograph: HO/AFP/Getty Images

A powerful earthquake of magnitude 6.4 struck southern California near the city of Ridgecrest, about 175 km northeast of Los Angeles, the US Geological Survey said on Thursday.

The Kern County fire department said on Twitter it was working "nearly 2 dozens incidents ranging from medical assistance to structure fires in and around the city of Ridgecrest, CA".

Ridgecrest mayor Peggy Breedon said the city was dealing with fires and broken gas lines, as well as falling objects that hit people, as the city endured many aftershocks. "We are used to earthquakes but we're not used to this significance," she told MSNBC.

First responders take part in a drill for a simulated 7.8 magnitude earthquake at the command centre of the Office of Emergency Management in Los Angeles, California, in March 2013. File photograph:  Frederic J Brown/AFP/Getty Images
First responders take part in a drill for a simulated 7.8 magnitude earthquake at the command centre of the Office of Emergency Management in Los Angeles, California, in March 2013. File photograph: Frederic J Brown/AFP/Getty Images

The quake is the largest in southern California since the 1994 magnitude 6.6 Northridge earthquake, which was centred in a heavily populated area of Los Angeles and caused billions of dollars of damage, USGS geophysicist Paul Caruso said.

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Ms Breedon said she had never felt a quake “like this long rolling” temblor, adding she was driving in her car when it happened and immediately pulled up her emergency brake.

She said the city of Ridgecrest had asked residents to look after others, especially the elderly, which form a large part of the city’s population.

The USGS said the quake, initially reported as a magnitude 6.6, was very shallow – only 8.7 km – which would have amplified its effect.

The earthquake, which struck at around 10.30am local time (6.30pm Irish time) in an area on the edge of Death Valley National Park, was felt throughout Los Angeles, as far north as Fresno, and as far east as Las Vegas, Nevada. It was even felt south of the border in Mexico, where buildings were evacuated in the towns of Tijuana and Mexicali, according to Baja State officials.

According to European quake agency EMSC, the quake was felt in an area inhabited by some 20 million people.

“We were just panicked trying to get out of the house because everything was just falling out of the cabinets, off the shelves, off the walls, pictures ... They were flying like missiles off the shelves,” resident April Rodriguez in Trona, California, south of Ridgecrest, said on CNN.

The epicentre was very close to Ridgecrest, a town with a population of more than 27,600 in the high desert. The area is associated with the Eastern California Shear Zone and has suffered earthquake swarms in the past, including a series of some 2,500 tremors over the course of five weeks in the summer of 1995.

According to poweroutage.us, there were some 5,851 customers without power in Kern County.

Temperatures in the area were expected to climb to nearly 38 degrees on Thursday, with extremely low humidity, the Weather Channel said.

USGS seismologist Lucy Jones said on CNN the area would be hit by many more aftershocks in the coming days, and could even be hit by a larger quake.

A magnitude 6.4 quake is considered strong and is capable of causing severe damage. – Reuters