The U.S. Geological Survey recorded an earthquake late Friday with a preliminary magnitude of 7.1 about 11 miles from Ridgecrest in the Mojave desert. The earthquake is just one day after a 6.4 earthquake struck the area, and Friday's quake was along the same fault lines.  

The quake shook downtown Los Angeles, and the Los Angeles Fire Department reported "localized" power outages in the city as well as downed wires. There is no major damage to infastructure identified, the LAFD tweeted

The quake was felt as far away as Las Vegas and Mexico, the USGS said.   

More than 1,000 aftershocks have been recorded since Thursday's earthquake. 

Thursday's quake is now known as a "foreshock" when an aftershock is larger than the originally quake. Lucy Jones of California Institute of Technology's seismology lab said in a press conference Friday that a magnitude 6 aftershock would be "not surprising."

"This is an earthquake sequence -- it will be ongoing," Jones said. 

Earthquakes of a magnitude 5 are likely and magnitude 6 quakes are possible. Jones said there is a 1 in 20 chance there could be another quake larger than 7.1. 

A tsunami warning is not expected. 

This is the strongest earthquake recorded in the area in over 20 years. 

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