A light earthquake was felt widely in Southern California before dawn Tuesday but there were no reports of damage.
A magnitude 5.3 earthquake struck Thursday under the ocean off Southern California and was felt widely along the mainland coast, but there were no reports of damage except to a chimney on one of the Channel Islands.
Starting next year, scientists will get their first look deep below the surface of Mars.
A powerful earthquake rattled forest villages and a large gold mine in central Papua New Guinea early Monday, but there were no immediate reports of injuries.
A magnitude-6.4 earthquake struck Tuesday near the coast of Taiwan, killing two people and injuring more than 200 others, officials said.
A 5.8 magnitude earthquake struck 100 miles (164 kilometers) off the coast of Northern California.
San Francisco Bay Area residents were shaken out of their slumber by a magnitude 4.4 earthquake that was felt over a wide area but caused no major damage early Thursday.
A series of small earthquakes has rattled an area northeast of Mount St. Helens in southwest Washington state.
A tremor shook Kermanshah province in western Iran near Iraq's border Monday, causing panic a month after a major quake killed hundreds of people there, state media and officials said.
Seismologists in Democratic Republic of Congo on Tuesday voiced concern after four light earthquakes were felt in the east of the country.