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| G02: | Intraplate Deformation and Earthquakes: Recent Advances from Geodetic, Seismological, Paleoseismological, and Geodynamic Modeling Investigations |
| Sponsor: |
Geodesy
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| CoSponsor: |
Seismology Tectonophysics |
| Convener: |
Eric Calais Purdue University USA ecalais@purdue.edu Stephane Mazzotti Geological Survey of Canada CAN smazzott@NRCan.gc.ca |
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1242 1209 7230 8107 .
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| Description: | Although the interior of tectonic plates deforms at rates that are about 2 orders of magnitude less than plate boundaries, large earthquakes do occur in such settings, indicating stress loading and episodic release on intraplate faults. However, the relationships between the rates at which these faults are loaded, regional strain rates from historical seismicity and paleoseismicity records, and overall deformation of plate interiors are difficult to quantify. Also, the steady-state model where strain on intraplate faults accumulates at a rate consistent with the seismicity record has been questioned, but the geodynamic processes that lead to stress accumulation and, eventually, release on intraplate faults remain poorly understood. This session seeks contributions presenting recent advances over a broad range of techniques and approaches, including (but not limited to) geodesy, seismology, paleoseismology, earthquake mechanics, and geodynamic modeling. We encourage presentations that link several approaches together. |