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Meteor in CA, NV likely caused loud explosion

A bright streak believed to be caused by a meteor in Reno, Nev., is seen in this photo Arpil 22, 2012. (Lisa Warren)

April 20, 2012 12:00:00 AM PDT
A meteor is likely to blame for the loud explosion heard across parts of California and Nevada on Sunday.

Lisa Warren was out walking in Reno, Nev., when she saw a bright streak in the sky. She was able to snap pictures of the sighting.

The blast rattled nerves from Reno to Sacramento that morning.

Astronomers say the meteor likely broke up somewhere over the Sierras, southwest of Reno. They believe it came from an ongoing meteor shower left by a comet, which passes earth every year.