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|a Glacial Earthquakes in Greenland and Antarctica |h [electronic resource] |y English. |
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|a [S.l.] : |b Annual Reviews, |c 2010. |
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|a Annual Review of Earth and Planetary Sciences Volume 38 |y English. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Glacial earthquakes are a new class of seismic events, first discovered as
signals in long-period seismograms recorded on the Global Seismographic
Network. Most of these events occur along the coasts of Greenland, where
they are spatially related to large outlet glaciers. Glacial earthquakes show a
strong seasonality, with most events occurring during the late summer. The
rate of glacial-earthquake occurrence increased between 2000 and 2005, with
a stabilization of earthquake frequency at 2003–2004 levels in 2006–2008.
Recent observations establish a strong temporal correlation between the distinct
seismic signals of glacial earthquakes and large ice-loss events in which
icebergs of cubic-kilometer scale collapse against the calving face, linking
the seismogenic process to the force exerted by these icebergs on the glacier
and the underlying solid earth. A sudden change in glacier speed results from
these glacial-earthquake calving events. Seasonal and interannual variations
in glacier-terminus position account for general characteristics of the temporal
variation in earthquake occurrence. Glacial earthquakes in Antarctica
are less well studied, but they exhibit several characteristics similar to glacial
earthquakes in Greenland. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15062105/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/21/05/00001/FI15062105_thm.jpg |
