The epicenter, with a depth of 7 km, was monitored at 24.19 degrees north latitude and 102.71 degrees east longitude at 1:44 a.m. Monday, according to the China Earthquake Networks Center.
"Stuff in my office started shaking. I heard a bang, and then the drinking fountain fell," said Chang Li, a nurse with the county's orthopedic hospital in Tonghai.
Chang rushed to her home and found her mother's legs buried in the debris of their home damaged by the quake. "Police and medical staff helped send her to the hospital," Chang said.