Stress feld estimation by the geoid undulations of the Samos Kuşadası Bay and implications for seismogenic behavior

Oruç, Bülent; Balkan, Emir

doi:10.1007/s11600-021-00604-7

Artykuł - szczegóły

Tytuł artykułu

Stress feld estimation by the geoid undulations of the Samos Kuşadası Bay and implications for seismogenic behavior

Autorzy

Oruç Bülent , Balkan Emir

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-021-00604-7

Warianty tytułu

Języki publikacji

Abstrakty

The strong earthquake with magnitude 6.9 occurred ofshore at the northernmost edge of the Samos Island and was strongly felt in the north Aegean islands and İzmir metropolitan city. In this study, the effective elastic thicknesses of the lithosphere and seismogenic layer thickness were correlated with each other in order to understand the nature of the earthquakes. We determined that the upper and lower depth limits of seismogenic layer are in a range of 5–15 km, meaning that only the upper crust is mostly involved in earthquakes in the study area. The fact that seismogenic layer and effective elastic thicknesses are close to each other indicates that the earthquake potential may be within the seismogenic layer. Following that, we estimate the stress feld from the geoid undulations as a proxy of gravity potential energy in order to analyze the amplitude and orientation of the stress vectors and seismogenic behavior implications. The discrete wavelet transform has been carried out to decompose the isostatic residual gravity anomalies into horizontal, vertical and diagonal detail coefcients. The results delineated edges of gravity anomalies that reveal some previously unknown features.

Słowa kluczowe

geoid wavelet transform edge detection seismogenic behavior effective elastic thickness stress field

geoida transformacja falkowa wykrywanie krawędzi pole naprężeń

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2021

Tom

Vol. 69, no. 3

Strony

1137--1149

Opis fizyczny

Bibliogr. 59 poz.

Twórcy

autor

Oruç Bülent

bulent.oruc@kocaeli.edu.tr

Department of Geophysical Engineering, Engineering Faculty, Kocaeli University, İzmit, Kocaeli, Turkey
Institute of Space and Geosciences, Eskişehir Technical University, Eskişehir, Turkey

https://orcid.org/0000-0001-6022-985X

autor

Balkan Emir

Department of Geophysical Engineering, Engineering Faculty, Kocaeli University, İzmit, Kocaeli, Turkey
Institute of Space and Geosciences, Eskişehir Technical University, Eskişehir, Turkey

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