One Dimensional Crustal Structure of Isparta Region From Broadband Modelling

Abstract eng:
Modeling broadband waveforms from small local and regional earthquakes is useful for determining source parameters and to infer details of crustal and upper mantle structure [1]. This paper aims to model crustal structure of Isparta region from broadband data. The Isparta Region, situated in the intersection of Hellenic and Cyprus arcs related to the collision of the African and Anatolian plates, possesses a complex structure. To further understand this complexity, three-component broadband waveforms of a Mw=5.1 magnitude event recorded on the Suhut (SHUT), Konya (KONB) broadband, high dynamic range instruments, were modeled to examine the effects of perturbations of the crustal model on the synthetic seismograms using a frequency wave-number integration code. This code makes it possible to synthesize three-component seismograms that are complete in that there are no ray truncations, and they include surface waves and near- and intermediate field terms. The result of the sensitivity analysis, final crustal velocity model and final source parameters obtained are discussed herein.

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