What Is an Ice Quake? Alaska Hit With Cryoseism Amid Northwest Heat Wave
http://www.newsweek.com/ice-quakes-explained-alaska-hit-cryoseism-northwest-heatwave-1606044
Two ice quakes have been recorded in Alaska amid the record heat wave engulfing the Pacific Northwest.
United States Geological Survey (USGS) data shows that the two quakes occurred separately on Monday evening and Wednesday evening. Both hit near to the city of Juneau, which borders Canada.