Alaska’s North Slope was hit Sunday by the most powerful earthquake ever recorded in the region, according to the state’s seismologist. At 6:58 a.m. Sunday, magnitude 6.4 earthquake struck an area 42 miles east of Kavik River Camp and 343 miles northeast of Fairbanks, the state’s second-biggest city. The U.S. Geological Survey says the earthquake had a depth of about 6 miles. State seismologist Mike West reported that the earthquake was the biggest recorded in the North Slope. Later Sunday, another magnitude 6.1 earthquake hit at 1:15 p.m. near the city of Kaktovik on Alaska’s North Slope, the U.S. Geological Survey said. The epicenter was southwest of Kaktovik, which has about 290 people. Several aftershocks were reported across northern Alaska. The Alaska Earthquake Center said there were no reports of damage.