The 22 February (local time) MW ∼6.2 Christchurch earthquake occurred within the aftershock region of the 4 September 2010 MW 7.1 Darfield (Canterbury) earthquake (Gledhill et al. 2011). Both the Darfield and Christchurch earthquakes occurred on previously unknown faults in a region of historically low seismicity, but within the zone of plate boundary deformation between the Pacific and Australian plates. The Darfield earthquake caused surface rupture up to 5 m (Quigley et al.2010, forthcoming), but none has been observed associated with the Christchurch earthquake. Geodetic data indicate that strain has been slowly accumulating...
Fault Location and Slip Distribution of the 22 February 2011 Mw 6.2 Christchurch, New Zealand, Earthquake from Geodetic Data
Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany; also at Department of Geomatics and Surveying Engineering, University of Tehran, Tehran, Iran
European Center for Geodynamics and Seismology, Walferdange, Luxembourg; now at Canada Centre for Remote Sensing, Ottawa, Canada
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John Beavan, Eric Fielding, Mahdi Motagh, Sergey Samsonov, Nic Donnelly; Fault Location and Slip Distribution of the 22 February 2011 Mw 6.2 Christchurch, New Zealand, Earthquake from Geodetic Data. Seismological Research Letters ; 82 (6): 789–799. doi: https://doi.org/10.1785/gssrl.82.6.789
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