Characteristics of the 2020 Samos earthquake (Aegean Sea) using seismic data
| Autor: | Costas Papazachos, Charis Kkallas, A. Arda Özacar, Eyüp Sopaci, Ali Pinar, Anastasia Kiratzi |
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| Rok vydání: | 2021 |
| Předmět: |
geography
geography.geographical_feature_category Hypocenter Building and Construction Slip (materials science) Fault (geology) Geotechnical Engineering and Engineering Geology Tectonics Geophysics Bathymetry Submarine pipeline Structural geology Seismology Aftershock Geology Civil and Structural Engineering |
| Zdroj: | Bulletin of Earthquake Engineering. 20:7713-7735 |
| ISSN: | 1573-1456 1570-761X |
| DOI: | 10.1007/s10518-021-01239-1 |
| Popis: | The 30 October 2020 Samos earthquake (Mw 7.0) ruptured an east–west striking, north dipping normal fault located offshore the northern coast of Samos Island, previously inferred from the bathymetry and regional tectonics. This fault, reported in the fault-databases as the North Samos and/or Kaystrios Fault, ruptured with almost pure dip-slip motion, in a region where both active extension and strike-slip deformation coexist. Historical information for the area confirms that similar ~ Mw7 events had also occurred in the broader Samos area, though none of the recent (last ~ 300 years) mainshocks appears to have ruptured the same fault. The spatial and temporal distribution of relocated aftershocks indicates triggering of nearby strike-slip and normal fault segments, situated in the areas where static stress has increased due to the mainshock generation. The relocated aftershocks and the slip model indicate that the sequence ruptured the upper crust (mainly the depth range 3–15 km). The top of the rupture plane nearly reached the sea bottom, located at a depth of |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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