Physics
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.2313t&link_type=abstract
Geophysical Research Letters, Volume 27, Issue 15, p. 2313-2316
Physics
11
Geodesy And Gravity: Crustal Movements-Interplate, Geodesy And Gravity: Seismic Deformations, Seismology: Earthquake Dynamics And Mechanics, Seismology: Seismicity And Seismotectonics
Scientific paper
Earthquakes cause a potential energy change in Earth's interior because they generate permanent vertical deformation in the gravitational field. The cumulative change of this potential energy in the crust, computed for the period between 1977 and 1998, shows systematic patterns in various tectonic provinces. Regions of extensional tectonics show systematic potential energy loss and regions of compressional tectonics typically show energy gain. Therefore, we claim that the crustal potential energy change can serve as a good indicator of compressional and extentional tectonics.
Okamoto Taro
Tanimoto Toshiro
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