SIERRA NEVADA -- A passing meteor shower surprised thousands of residents over the Sierra Nevada on Sunday morning, as a large and loud boom was heard throughout the region.

The sound of the explosion around 8 a.m. prompted a flood of calls to law enforcement agencies on both sides of the Sierra Nevada, in Nevada and California.

The explosion rattled windows and shook houses from Reno to Winnemucca in Nevada and from Sacramento to Bakersfield in California.