Bulletin of the Seismological Society of America · 1996 · 67 citations · 12 references
Natural SciencesEarth SciencesGeophysicsEarthquake PhysicsSeismologyTectonicsAftershock SequencesEarthquake Focal MechanismsEarthquake Source ProcessesFault Zone SeismologyFault Zone StructureSeismicity PatternsAftershock Focal MechanismsAftershock GenerationAftershock Source ProcessesAftershock Spatial DistributionAftershock Triggering MechanismsFocal Mechanism AnalysisMainshock-aftershock InteractionsNormal Fault Systems
Abstract The Galaxidi earthquake that occurred in the Gulf of Corinth on 18 November 1992 was not followed by a noticeable aftershock sequence, a fact that was also observed for the 1965 Eratini event in the same area. The temporary network of 35 stations that we installed 5 days after the mainshock did not help to identify a cluster of activity related to the mainshock. In a section across the epicentral zone, the focal mechanism of the mainshock and the distribution of a few aftershocks define a plane dipping north, consistent with the nearby Helike fault. We propose that the Galaxidi earthquake was related to an asperity located between the Helike and Xilokastro faults.
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