Investigation of earthquake magnitude and interevent time distribution in Corinth Gulf and Mygdonia basin with the use of stochastic tools

Gkarlaouni, Charikleia and Lasocki, Stanislaw and Papadimitriou, Eleftheria E. (2015) Investigation of earthquake magnitude and interevent time distribution in Corinth Gulf and Mygdonia basin with the use of stochastic tools. In: Proceedings of the 28th Panhellenic Statistics Conference. Greek Statistical Institute, Greece, pp. 385-399.

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Abstract

Great effort has been exerted for the investigation of the seismicity parameters distribution, especially regarding magnitude and interevent time between consecutive earthquakes. An approach combining a parametric and a non-parametric methodology are tested for the instrumental seismicity, in two of the most active extensional fault zones in Greece (Corinth gulf and Mygdonia basin) that accommodate intense seismicity with devastating events. The non-parametric approach refers to the "smoothed bootstrap test for modality and bump-hunt test" for unveiling possible complex distribution characteristics. The input data regard complete and declustered otheses that the distributions of interevent time and magnitude are unimodal. A multimodal distribution is evidenced in most cases where clustering of earthquakes is dominant. When multimodality is identified, the next target is to define the exact locations of modes and bumps. The results are interpreted in terms of the seismotectonic properties of the fault populations in each area and earthquake clustering.

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Item Type: Book Section
Uncontrolled Keywords: magnitude, interevent time, distribution, multimodality
Application references: Inter-event Time Distribution Analysis
Subjects: Methodology > Method and procesing > Collective properties of seismicity > Source size distribution
Project: EPOS-IP