A magnitude 6.1 earthquake struck a small southern California community Sunday afternoon, killing seven people and injuring at least two more.
A third person was hospitalized in critical condition, the California Department of Emergency Services said.
The quake, about 1:35 p.m., was centered about 100 miles (160 kilometers) northwest of San Diego.
About 1,000 people lived in the town of El Camino Real, which lies about 70 miles (110 kilometers) east of San Francisco.
A woman who was working at the nearby Chevron station was killed when she fell about a foot and was injured by a large branch, the department said.
A worker at the Chevron station said the building was mostly destroyed, and workers were digging through rubble to find bodies.
There were no immediate reports of injuries.
The epicenter was about 80 miles (135 kilometers) southwest of San Luis Obispo, about 80 minutes southeast of San Marcos, about 30 minutes northwest of the Mexican border and 20 miles (32 kilometers) west of the capital, Mexico City.
The U.S. Geological Survey said it was monitoring the temblor.
The San Luis Valley was home to about 10,000 residents when the quake struck.