TY  - GEN
A1  - Rößler, Dirk
A1  - Krüger, Frank
A1  - Ohrnberger, Matthias
T1  - Rupture Propagation of the 2008/05/12 Ms8.0 Wenchuan Earthquake
N2  - We study the rupture propagation of the 2008/05/12 Ms8.0 Wenchuan Earthquake. We apply array techniques such as semblance vespagram analysis to P waves recorded at seismic broadband station within 30-100° epicentral distance. By combination of multiple large aperture station groups spatial and temporal resolution is enhanced and problems due source directivity and source mechanism are avoided. We find that seismic energy was released for at least 110 s. Propagating unilaterally at sub-shear rupture velocity of about 2.5 km/s in NE direction, the earthquake reaches a lateral extent of more than 300 km. Whereas high semblance during within 70 s from rupture start indicates simple propagation more complex source processes are indicated thereafter by decreases coherency in seismograms. At this stage of the event coherency is low but significantly above noise level. We emphasize that first result of our computations where obtain within 30 minutes after source time by using an atomized algorithm. This procedure has been routinely and globally applied to major earthquakes. Results are made public through internet.
KW  - Sichuan
KW  - Wenchuan
KW  - Erdbeben
KW  - Bruchverfolgung
KW  - Arrayseismologie
KW  - Sichuan
KW  - Wenchuan
KW  - earthquake
KW  - rupture
KW  - propagation
KW  - array seismology
Y1  - 2009
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/2741
UR  - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus-29195
ER  -