EARTHQUAKE

Scientists at the Alaska Earthquake Center are monitoring a series of earthquakes near Adak Island in the western Aleutians, with at least eight quakes exceeding magnitude 5 since March 20.

A magnitude 5.6 earthquake struck about 58 miles southwest of Unalaska Sunday afternoon. While many locals felt the event, including in Nikolski and Akutan, there is no current threat of a tsunami or cause for concern.

If you were in Unalaska this weekend, there’s a chance you felt an earthquake. A magnitude 5.4 earthquake struck 63 miles southwest of the island on Oct. 5 at 4:50 a.m., followed by many aftershocks. It created a seismic sequence where 10 of the aftershocks measured greater than magnitude 4.

The National Weather Service has issued a special weather statement for the Eastern Aleutians and Alaska Peninsula. According to the organization, small amounts of ashfall are possible in Unalaska, Nikolski, Sand Point and Cold Bay through Monday afternoon.

In early May, over the span of two days, a swarm of more than 50 earthquakes occurred in the Fox Islands region in the Aleutians. Most of the earthquakes were small, with a few larger events measuring over magnitude 5 southwest of Umnak Island.Similar earthquake swarms have periodically occurred in nearly the exact same location for the past 50 years, but scientists are still figuring out what causes them.

In this episode of "Island Interviews," Stephen Holtkamp, a data analyst with the Alaska Earthquake Center, explains the earthquake swarm and how similar events have occurred in the past.

A tsunami warning has been lifted for a swath of Alaska coastline after a magnitude 7.2 earthquake hit off the Alaska Peninsula late Saturday.

People living in Aleutian communities are no strangers to the occasional earthquake. But in recent years, the region has seen some ramped up seismic activity, including a magnitude-6.2 earthquake that hit just about 40 miles south of Unalaska earlier this month. KUCB’s Maggie Nelson sat down with Rob Witter, a research geologist with the U.S. Geological Survey, to hear more about the island’s recent earthquake and how that fits into the larger picture of seismic activity in the Aleutians.

A magnitude-6.8 earthquake hit about 58 miles southeast of Nikolski early Tuesday morning, according to the Alaska Earthquake Center.Natalia Ruppert, a seismologist with the AEC in Fairbanks, said the earthquake hit at about 2:30 a.m. and was preceded and followed by more seismic activity.

A magnitude-6.4 earthquake hit about 25 miles east of Nikolski Tuesday morning, and was felt by residents in Nikolski, Unalaska, and Akutan. The…