A strong earthquake struck near the Aleutian Islands on Sunday night, but there were no immediate reports of damage and no tsunami was generated.
The quake, centered 71 miles southwest of the village of Nikolski and 167 miles southwest of Dutch Harbor, had a preliminary magnitude of 6.9, according to the Alaska Earthquake Information Center. It hit at 8:49 p.m. and was followed by a numerous aftershocks, according the U.S. Geological Survey.
By 6 a.m. Monday, the area had seen five aftershocks with a magnitude of 5.0 or greater, and more than a dozen smaller shocks ranging in magnitude from 3.1 to 4.9.
No tsunami was generated, according to the National Tsunami Warning Center.
The area, near the Fox Islands, is just under 1,000 miles west of Anchorage. Nikolski, with a population of fewer than 20 in the 2010 census, is the only community in the vicinity.
The earthquake was centered 53 miles south of Mount Cleveland, a restless volcano that has been rumbling recently. An explosion was reported on July 21.