A powerful, magnitude-7.0 earthquake has struck in a remote area near the border between Alaska and the Canadian territory of Yukon on Saturday

The federal government and earthquake experts blamed a technical glitch for the alert that sent warnings hundreds of miles away last week.

The clusters of earthquakes have all been underneath the East Bay suburb of San Ramon, which is close to the Calaveras fault. There were at least 19 earthquakes of magnitude 2 or greater on Monday alone.

A magnitude 7 earthquake has rocked Alaska on Saturday, Dec. 6, according to the United States Geological Survey (USGS).

A minor, 3.1-magnitude earthquake struck in Southern California on Thursday, according to the United States Geological Survey. The temblor happened at 10:27 a.m. Pacific time about 8 miles northwest of Fillmore, Calif., data from the agency shows.

FRESNO COUNTY, CA - Tuesday afternoon, a 2.1 magnitude quake was detected near Coalinga, according to the U.S. Geological Survey.

Japan lifted tsunami warnings after a 6.9-magnitude quake, but evacuations and fears of further tremors continue along the Pacific coast.