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| Titel |
An overview of the Mw 6.3 Christchurch earthquake and a preliminary source mechanism |
| VerfasserIn |
Caroline Holden, Stephen Bannister, John Beavan, Rafael Benites, Grant Dellow, Bill Frey, Anna Kaiser, Chris Massey, Mahdi Motagh, Martin Reyners, John Ristau, Sergey Samsonov, Joshua Thomas |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250058226
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| Zusammenfassung |
| At 12:51 on Tuesday 22 February 2011 local daylight time (23:51 on 21 February UT) a
destructive aftershock of moment magnitude (Mw) 6.3 and shallow depth struck
approximately 10 km SE of downtown Christchurch, causing extensive damage and loss of
life (currently estimated at 180 deaths) in the central city and eastern suburbs. This
earthquake was very energetic with recorded maximum vertical accelerations of 2.2 g near
the epicentre. It caused much larger levels of building damage, landslides, rock falls and
liquefaction than the Mw 7.1 Darfieldmainshock. No surface rupture has been found but the
event has been well constrained by geodetic and seismological data. We will present an
overview of the extent and variable aspects of the damage, as well as preliminary source
models of the earthquake. |
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