Volume 55 BGSG Research Paper PROBABILISTIC SEISMIC HAZARD ASSESSMENT (PSHA) FOR LESVOS Correspondence to: ISLAND USING THE LOGIC TREE APPROACH N. Vavlas
[email protected] Nikolaos Vavlas¹, Anastasia Kiratzi¹, Basil Margaris², George Karakaisis¹ DOI number: http://dx.doi.org/10.12681/ ¹ Department of Geophysics, Aristotle University of Thessaloniki, 54124 Thessaloniki, bgsg.20705 Greece,
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[email protected] Keywords: ² Institute of Earthquake Engineering and Engineering Seismology, EPPO, 55102 PSHA, Lesvos, Thessaloniki, Greece,
[email protected] earthquake, logic tree, seismic hazard Citation: Vavlas, Ν, A. Kiratzi, B. Abstract Margaris, G. Karakaisis (2019), Probabilistic seismic hazard assessment We carry out a probabilistic seismic hazard assessment (PSHA) for Lesvos Island, in (PSHA) for Lesvos island the northeastern Aegean Sea. Being the most populated island in the northern Aegean using the logic tree approach, Bulletin Sea and hosting the capital of the prefecture, its seismic potential has significant social- Geological Society of economic meaning. For the seismic hazard estimation, the newest version of the R- Greece, v.55, 109-136. CRISIS module, which has high efficiency and flexibility in model selection, is used. We Publication History: incorporate into the calculations eight (8) ground motion prediction equations Received: 29/06/2019 Accepted: 16/10/2019 (GMPEs). The measures used are peak ground acceleration, (PGA), peak ground Accepted article online: velocity, (PGV), and spectral acceleration, (SA), at T=0.2 sec representative of the 18/10/2019 building stock. We calculate hazard curves for selected sites on the island, sampling the The Editor wishes to thank southern and northern parts: Mytilene, the capital, the village of Vrisa, Mithymna and two anonymous reviewers for their work with the Sigri.