Other
Scientific paper
Jun 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3612309h&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 12, CiteID L12309
Other
2
Geodesy And Gravity: Satellite Geodesy: Results (6929, 7215, 7230, 7240), Geodesy And Gravity: Control Surveys, Seismology: Earthquake Dynamics (1242), Seismology: Earthquake Source Observations (1240), Geodesy And Gravity: Tectonic Deformation (6924)
Scientific paper
A complex sequence of earthquakes struck the western part of the South Iceland Seismic Zone (SISZ) on 29 May 2008. The sequence initiated with a M w6.3 (NEIC) earthquake in the western part of the SISZ. Aftershocks from the earthquake delineate two parallel N-S trending structures 4 km apart, in addition to activity along an E-W zone further westward. Continuous GPS measurements can best be explained by right-lateral strike-slip motion on two parallel N-S trending faults, with little slip occurring on other structures illuminated by earthquake activity. We estimate a total moment release of M w6.2, with M w6.1 on the first rupture and M w6.0 on the second rupture. High rate (1 Hz) CGPS data from a near-field station suggest that the main asperity on the Kross fault ruptured within 3 s of the initial mainshock on the Ingólfsfjall fault.
Árnadóttir Thóra
Bennett Ryan A.
Decriem Judicael
Geirsson Halldór
Hreinsdóttir Sigrún
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