TY  - GEN
A1  - Donner, Stefanie
A1  - Rößler, Dirk
A1  - Strecker, Manfred
A1  - Landgraf, Angela
A1  - Ballato, Paolo
T1  - Erweiterte Momententensorinversion und ihre seismotektonische Anwendung : Elbursgebirge, Nordiran
T1  - Extended moment tensor inversion and its seismotectonic application : Alborz Mountains, Northern Iran
N2  - Der Elburs im Norden Irans ist ein durch die Konvergenz der Arabischen und Eurasischen Platte verursachtes doppelt konvergentes Gebirge. Das komplexe System von Blattverschiebungen und Überschiebungen sowie die Aufnahme der Deformation im Elburs ist noch nicht sehr gut verstanden. Eine neu zu entwicklende Methode zur Inversion von seismischen Momententensoren, die unterschiedliche Beobachtungen verschiedener Stationstypen kombiniert invertiert, soll die bisher hauptsächlich strukturelle/geomorphologische Datengrundlage um Momententensoren auch kleinerer Magnituden (M < 4.5) erweitern. Dies ist die notwendige Grundlage für detaillierte seismotektonische Studien, die wiederum die Basis für seismische Gefährdungsanalysen bilden.
KW  - Momententensor
KW  - Iran
KW  - Seismotektonik
KW  - moment tensor
KW  - Iran
KW  - seismotectonics
Y1  - 2009
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-29308
ER  - 
TY  - GEN
A1  - Donner, Stefanie
A1  - Strecker, Manfred
A1  - Rößler, Dirk
A1  - Ghods, Abdolreza
A1  - Krüger, Frank
A1  - Landgraf, Angela
A1  - Ballato, Paolo
T1  - Earthquake source models for earthquakes in Northern Iran
N2  - The complex system of strike-slip and thrust faults in the Alborz Mountains, Northern Iran, are not well understood yet. Mainly structural and geomorphic data are available so far. As a more extensive base for seismotectonic studies and seismic hazard analysis we plan to do a comprehensive seismic moment tensor study also from smaller magnitudes (M < 4.5) by developing a new algorithm. Here, we present first preliminary results.
KW  - Elburs
KW  - Iran
KW  - Momententensor
KW  - Seismotektonik
KW  - Alborz
KW  - Iran
KW  - moment tensor
KW  - seismotectonics
Y1  - 2009
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-32581
ER  - 
TY  - GEN
A1  - Rößler, Dirk
A1  - Hiemer, Stephan
A1  - Bach, Christoph
A1  - Delavaud, Elise
A1  - Krüger, Frank
A1  - Ohrnberger, Matthias
A1  - Sauer, David
A1  - Scherbaum, Frank
A1  - Vollmer, Daniel
T1  - Small-aperture seismic array monitors Vogtland earthquake swarm in 2008/09
N2  - The most recent intense earthquake swarm in the Vogtland lasted from 6 October 2008 until January 2009. Greatest magnitudes exceeded M3.5 several times in October making it the greatest swarm since 1985/86. In contrast to the swarms in 1985 and 2000, seismic moment release was concentrated near swarm onset. Focal area and temporal evolution are similar to the swarm in 2000. Work hypothysis: uprising upper-mantle fluids trigger swarm earthquakes at low stress level. To monitor the seismicity, the University of Potsdam operated a small aperture seismic array at 10 km epicentral distance between 18 October 2008 and 18 March 2009. Consisting of 12 seismic stations and 3 additional microphones, the array is capable of detecting earthquakes from larger to very low magnitudes (M<-1) as well as associated air waves. We use array techniques to determine properties of the incoming wavefield: noise, direct P and S waves, and converted phases.
KW  - Vogtland
KW  - Erdbebenschwarm 2008
KW  - Arrayseismologie
KW  - Vogtland
KW  - West Bohemia
KW  - earthquake swarm
KW  - array seismology
Y1  - 2009
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-29185
ER  -