Science & Environment

Science and environmental reporting on news and community topics. Science coverage is occasionally provided by community members.

Hope McKenney/KUCB


On Monday, in the middle of testing the city’s sirens, Unalaska received notification of a large earthquake southeast of Sand Point and a subsequent tsunami warning in communities east of Unalaska to the Kenai Peninsula

Tsunami Warning Center


Residents of coastal Alaska, from Sand Point to Kodiak, scrambled for higher ground and motored boats into deeper water Monday afternoon after a magnitude 7.5 earthquake hit near Sand Point and triggered a tsunami warning. 

Large waves did not appear, but life in the communities was disrupted by the emergency. 

Laura Kraegel/KUCB


Saturday marked the one year anniversary of Unalaska's fatal PenAir plane crash. On October 17 of last year, the Saab 2000 plane went off the end of Tom Madsen Airport's runway. 42 people were on board, over 11 were injured, and one passenger died.

Courtesy of J. Tomoleoni / U.S. Geological Survey

Sea urchins are devouring the massive limestone reefs surrounding the central and western Aleutian Islands — a process exacerbated by climate-driven changes in the marine environment, according to a new study published in

Courtesy of David Fee / AVO/UAF-GI


Scientists have raised Pavlof Volcano's alert level, after the volcano began showing signs of restlessness. 

The Alaska Volcano Observatory issued an "advisory" for Pavlof on Monday following an ongoing tremor at the volcano, located 36 miles northeast of Cold Bay.