Spatial analysis of b-value variability in Elazig city and the surrounding area (Eastern Turkey)

Polat, Gulten

doi:10.1007/s11600-021-00694-3

Artykuł - szczegóły

Tytuł artykułu

Spatial analysis of b-value variability in Elazig city and the surrounding area (Eastern Turkey)

Autorzy

Polat Gulten

Wybrane pełne teksty z tego czasopisma

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

Identyfikatory

DOI

10.1007/s11600-021-00694-3

Warianty tytułu

Języki publikacji

Abstrakty

Frequency-magnitude distribution was investigated in Elazig city and the surrounding area (coordinates ranging from 38.1° N to 39° N for latitudes and 39° E to 40° E for longitude) to reveal the present-day crustal stress within the region. For this study, a complete set of 5603 earthquakes of Md≥1 from 1 January 2000 to 31 August 2020 were localized from the Bogazici University, Kandilli Observatory and Earthquake Research Institute, Regional Earthquake-Tsunami Monitoring Center (KOERI) catalogue. For the whole study region, spatial mapping of the frequency-magnitude distribution was thus produced. The frequency-magnitude distribution (b-value) for seismicity within the study area was not homogeneous. Outstanding variations in the b-value were detected with b ranging from b≈slightly more than 0.3–2. In this region, low b-values are mostly dominant in the region except for a few local areas. This study also shows that accumulated stresses are high particularly at the Pütürge segment in contrast to the fault drawn in the south, which represents the main thrust belt that runs through Hani-Lice and stretches to Çüngüş. As expected, stress accumulation in reverse faults is fairly higher. However, the sharing of the tension formed in the compression zone of the Arabian Plate and the Anatolian plate (i.e. stress partitioning in a sense), results in a low share in the reverse fault belt.

Słowa kluczowe

seismicity b value Elazig seismic risk seismic hazard Sivrice fault zone

sejsmiczność parametr b Elazig ryzyko sejsmiczne zagrożenie sejsmiczne

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2022

Tom

Vol. 70, no 1

Strony

15--25

Opis fizyczny

Bibliogr. 62 poz.

Twórcy

autor

Polat Gulten

gulten.polat@yeditepe.edu.tr

Department of Civil Engineering, Yeditepe University, 26 Ağustos Yerleşkesi, Kayışdağı Cad., 34755 Istanbul, Turkey

https://orcid.org/0000-0002-6956-7385

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).

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Bibliografia

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