Earth  ID: 2968

Retreating Glaciers Spur Alaskan Earthquakes

Visualizations by Stuart A. Snodgrass Released on August 2, 2004
The study examined the likelihood of increased earthquake activity in southern Alaska as a result of rapidly melting glaciers. As glaciers melt they lighten the load on the Earth's crust. Tectonic plates, that are mobile pieces of the Earth's crust, can then move more freely.
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See the difference in the Bering Glacier from October 1986 to September 2002. These images were derived from the Landsat 5 and Landsat 7 satellites.
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A wide shot of the Bering Glacier, October 1986.
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A medium shot of the Bering Glacier, October 1986.
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A close up of the Bering Glacier, October 1986.
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A wide view of the Bering Glacier, September 2002.
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A medium view of the Bering Glacier, September 2002.
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A close up view of the Bering Glacier, September 2002.

For More Information

http://www.gsfc.nasa.gov/topstory/2004/0715glacierquakes.html

Visualization Credits

Stuart A. Snodgrass (GST): Lead Animator
Marte Newcombe (GST): Animator
Jeanne Sauber (NASA/GSFC): Scientist
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio The Blue Marble Next Generation data is courtesy of Reto Stockli (NASA/GSFC) and NASA's Earth Observatory.

Short URL to share this page:
https://svs.gsfc.nasa.gov/2968

Missions:
Landsat
Terra

Data Used:
Landsat-5/TM
1993/01/18
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Landsat-7/ETM+
2001/11/16
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Terra and Aqua/MODIS/Blue Marble: Next Generation also referred to as: BMNG
1/1/2004 - 12/31/2004
Credit:
The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).
view all stories where this data set is used
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

This item is part of this series:
Glacier Earthquakes

Goddard TV Tape:
G2004-042

Keywords:
SVS >> Earthquake
GCMD >> Earth Science >> Solid Earth
GCMD >> Earth Science >> Solid Earth >> Seismology
GCMD >> Earth Science >> Cryosphere >> Glaciers/Ice Sheets >> Glaciers
GCMD >> Location >> Alaska
SVS >> Bering Glacier
SVS >> For Educators
SVS >> Seismic Activity
SVS >> Fault Boundaries
SVS >> Geology
SVS >> Physical Geography
SVS >> Tectonic Plates
SVS >> Glaciers
NASA Science >> Earth

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0