A powerful magnitude-6.9 earthquake struck late Sunday night off the coast of Northern California, but there were no immediate reports of injury or damage and no danger of a tsunami, officials said.
South Korea says it suspects a nuclear test caused an earthquake Tuesday in North Korea just north of a site where the country conducted two previous atomic tests. North Korea has yet to confirm whether the tremor resulted from a widely anticipated third nuclear test.
A 6.2-magnitude earthquake has rattled the southern part of Mexico's Baja California peninsula, but there are no immediate reports of damages or injuries.
NOSARA, Costa Rica - A powerful, magnitude-7.6 earthquake shook Costa Rica and a wide swath of Central America on Wednesday. There were no immediate accounts of injuries, but communications were down near the epicenter.