Photo: USGS
A 3.9-magnitude earthquake was reported in Alaska on Wednesday (April 9), according to the United States Geological Survey.
The earthquake was centered in Nikolski at a depth of 35.2 kilometers (about 22 miles). The USGS said it received zero reports of people having felt the earthquake at the time of publication.
The Nikolski earthquake was reported shortly after a 3.1-magnitude earthquake was reported in Alaska on Wednesday, according to the United States Geological Survey. The earthquake was centered in Chase at a depth of 55.2 kilometers (about 34 miles).
The Chase earthquake was reported two days after a 4.5-magnitude earthquake was reported in Alaska on Monday (April 7), according to the United States Geological Survey. The earthquake was centered in Adak at a depth of 10.0 kilometers (about 6.2 miles).
The Adak earthquake was reported hours after a 3.5-magnitude earthquake was reported in Hawaii on Monday (April 7), according to the United States Geological Survey. The earthquake was centered at Naalehu at a depth of 11.1 kilometers (about 6.9 miles).
The Hawaii earthquake was reported one day after a 3.7-magnitude earthquake was reported in Washington State on Friday (April 4), according to the United States Geological Survey. The earthquake was centered at Greenwater at a depth of 9.4 kilometers (about 5.9 miles).