TY  - JOUR
A1  - Türker, Elif
A1  - Cotton, Fabrice
A1  - Pilz, Marco
A1  - Weatherill, Graeme
T1  - Analysis of the 2019 Mw 5.8 Silivri earthquake ground motions
T2  - Seismological research letters
N2  - The main Marmara fault (MMF) extends for 150 km through the Sea of Marmara and forms the only portion of the North Anatolian fault zone that has not ruptured in a large event (Mw >7) for the last 250 yr. Accordingly, this portion is potentially a major source contributing to the seismic hazard of the Istanbul region. On 26 September 2019, a sequence of moderate-sized events started along the MMF only 20 km south of Istanbul and were widely felt by the population. The largest three events, 26 September Mw 5.8 (10:59 UTC), 26 September 2019 Mw 4.1 (11:26 UTC), and 20 January 2020 Mw 4.7 were recorded by numerous strong-motion seismic stations and the resulting ground motions were compared to the predicted means resulting from a set of the most recent ground-motion prediction equations (GMPEs). The estimated residuals were used to investigate the spatial variation of ground motion across the Marmara region. Our results show a strong azimuthal trend in ground-motion residuals, which might indicate systematically repeating directivity effects toward the eastern Marmara region.
Y1  - 2022
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/62087
SN  - 0895-0695
SN  - 1938-2057
VL  - 93
IS  - 2A
SP  - 693
EP  - 705
PB  - Seismological Society of America
CY  - Boulder, Colo.
ER  -