Time variation of parameters related to the accelerating preshock crustal deformation in the Aegean area
-- The time variation of two parameters related to accelerating seismic deformation before strong earthquakes in the Aegean area is examined. The first is the b parameter of the Gutenberg-Richter relation and the second is the curvature parameter C, which is a measure of deviation of the acceleratin...
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| Veröffentlicht in: | Pure and applied geophysics 2003-08, Vol.160 (8), p.1479-1491 |
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| container_title | Pure and applied geophysics |
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| creator | KARAKAISIS, G. F SAVVAIDIS, A. S PAPAZACHOS, C. B |
| description | -- The time variation of two parameters related to accelerating seismic deformation before strong earthquakes in the Aegean area is examined. The first is the b parameter of the Gutenberg-Richter relation and the second is the curvature parameter C, which is a measure of deviation of the accelerating preshock deformation from a linear time variation of this deformation. Following two different procedures, it was found that the b value exhibits a decreasing trend prior to the oncoming earthquake, in agreement with the results of laboratory experiments and other independent observations. C values also show a decreasing trend before main shocks. These results indicate that such time variations of these parameters can be considered as precursory phenomena of ensuing strong earthquakes.[PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1007/s00024-003-2356-6 |
| format | Article |
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| subjects | Deformation Earth sciences Earth, ocean, space Earthquakes Exact sciences and technology Geophysics Parameter estimation Seismic activity Seismology Tectonics. Structural geology. Plate tectonics Vegetation |
| title | Time variation of parameters related to the accelerating preshock crustal deformation in the Aegean area |
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