http://www.foxnews.com/us/2018/08/12/magnitude-6-5-earthquake-strikes-central-alaska.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+foxnews%2Fnational+%28Internal+-+US+Latest+-+Text%29
The jump from a 5.2 to Sunday's 6.4 is significant because earthquakes rapidly grow in strength as magnitude rises, he said. A magnitude 6.4 earthquake is 15.8 times bigger and 63.1 times stronger than a 5.2 earthquake, according to the U.S. Geological Survey.
"That's why at 6.4 this changes how we think about the region," West said. "It's a little early to say how, but it's safe to say this earthquake will cause a re-evaluation of the seismic potential of that area."
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 (65 kilometers) southwest of Kaktovik, which has about 290 people.
