Aftershocks have been recorded for both earthquakes. On Dec. 8, Japanese authorities warned an even more powerful earthquake could strike within the next week and called on residents from the northernmost island of Hokkaido down to Chiba prefecture, east of Tokyo, to be on high alert.

SAN DIEGO COUNTY, CA - A 3.2 magnitude quake was recorded near Borrego Springs at midnight on Tuesday, according to the U.S. Geological Survey.

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 417-day-long experiment, known as LUX-ZEPLIN (LZ), looked at the light signatures released as particles collide with xenon atoms in a giant vat, which is placed deep underground so that most particles from space cannot muddy the results.

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.

LATEST, Dec. 8, 3:15 p.m. Oakland is the latest Bay Area city to be jolted by an earthquake on Monday. The shake happened at 2:55 p.m. and had a preliminary magnitude of 2.9, according to the U.S. Geological Survey. The quake also had a depth of 2.85 miles, with an epicenter located north of Montclair.

The earthquake struck off the coast of Aomori on Japan's Honshu Island on Monday. Roderick Macleod, 70, was walking his dogs when he was allegedly struck by a driver with dozens of prior arrests.

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