Glaciers Are Melting In Alaska

Last week a landslide spread across a glacier in southeastern Alaska. Paul Swanstrom, a sightseeing pilot first saw the slide on June 28 when "part of a mountain gave way near Lamplugh Glacier, in Glacier Bay National Park, about 100 miles northwest of Juneau."

"The slide caused seismic tremors that first registered at magnitude 2.9, according to data from the Alaska Earthquake Center." It was later recalculated and the magnitude was actually 5.5. A peak on the west side of the glacier seemed to be the cause of the slide. The Lamont-Doherty Earth Observatory "estimated the slide involved more than 165 million tons of material."

As warmer temperatures cause more glaciers to melt, it will also cause more slides. "Glaciers buttress the mountainsides that surround them; when the ice disappears, the slopes lose some of their support, and erosion or earthquakes can cause them to collapse."

New York Times Article As Glaciers Melt In Alaska, Landslides Follow: http://www.nytimes.com/2016/07/06/science/alaska-landslides-glaciers-melt.html?rref=collection%2Fsectioncollection%2Fscience&action=click&contentCollection=science&region=rank&module=package&version=highlights&contentPlacement=2&pgtype=sectionfront

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