Back to Search

A suite of broadband physics-based ground motion simulations for the Istanbul region

Title	A suite of broadband physics-based ground motion simulations for the Istanbul region
Author	Zhang, W., Crempien, J. G. F., Kurtuluş, Aslı, Chen, P.-Y., Arduino, P., Taciroglu, E.
Publication Date:	2023-04
Publication Place	- Wiley
Subject	Earthquake wave propagation, High frequency, Physics-based ground motion simulation, Regional-scale analysis
Type	Periodical
Language	English
Digital	Yes
Manuscript	No
Library:	Özyeğin University
Library Asset ID	0098-8847
Record ID	e68d1206-e85c-4c05-adc8-0ef93871d005
Library Location	Civil Engineering
Date	2023-04
Notes	TÜBİTAK
Sample Text	Physics-based earthquake ground motion simulations (GMS) have acquired significant growth over the last two decades, mainly due to the explosive developments of high-performance computing techniques and resources. These techniques benefit high/medium seismicity regions such as the city of Istanbul, which presents insufficient historical ground motion data to properly estimate seismic hazard and risk. We circumvent this reality with the aid of the Texas Advanced Computing Center (TACC) facilities to perform a suite of 57 high-fidelity broadband (8–12 Hz) large-scale physics-based GMS for a region in Istanbul, Turkey. This paper focuses on the details of simulated GMS: (i) validation of the GMS approach against recorded ground motions produced by the 2019 (Formula presented.) Silivri earthquake; (ii) characteristics of 57 different source models, which aim to consider the uncertainties of many fault rupture features, including the length and width, dip, strike, and rake angles of considered fault planes, as well as hypocenter locations and earthquake magnitudes ranging between (Formula presented.) 6.5 and 7.2; (iii) high-resolution topography and bathymetry and seismic data that are incorporated into all GMS; (iv) simulation results, such as PGAs and PGVs versus (Formula presented.) and distances to fault ruptures ((Formula presented.)), of 2912 surface stations for all 57 GMS. More importantly, this research provides a massive database of displacement, velocity and acceleration time histories in all three directions over more than 20,000 stations at both surface and bedrock levels. Such site-specific high-density and -frequency simulated ground motions can notably contribute to the seismic risk assessment of this region and many other applications.
DOI	10.1002/eqe.3809
Cilt	52

View in source Özyeğin University Özyeğin University - Ottoman library catalog search

Özyeğin University

A suite of broadband physics-based ground motion simulations for the Istanbul region

Author Zhang, W., Crempien, J. G. F., Kurtuluş, Aslı, Chen, P.-Y., Arduino, P., Taciroglu, E.

Publication Date 2023-04

Publication Place - Wiley

Subject Earthquake wave propagation, High frequency, Physics-based ground motion simulation, Regional-scale analysis

Type Periodical

Language English

Digital Yes

Manuscript No

Library Özyeğin University

Library Asset ID 0098-8847

Record ID e68d1206-e85c-4c05-adc8-0ef93871d005

Library Location Civil Engineering

Date 2023-04

Notes TÜBİTAK

Sample Text Physics-based earthquake ground motion simulations (GMS) have acquired significant growth over the last two decades, mainly due to the explosive developments of high-performance computing techniques and resources. These techniques benefit high/medium seismicity regions such as the city of Istanbul, which presents insufficient historical ground motion data to properly estimate seismic hazard and risk. We circumvent this reality with the aid of the Texas Advanced Computing Center (TACC) facilities to perform a suite of 57 high-fidelity broadband (8–12 Hz) large-scale physics-based GMS for a region in Istanbul, Turkey. This paper focuses on the details of simulated GMS: (i) validation of the GMS approach against recorded ground motions produced by the 2019 (Formula presented.) Silivri earthquake; (ii) characteristics of 57 different source models, which aim to consider the uncertainties of many fault rupture features, including the length and width, dip, strike, and rake angles of considered fault planes, as well as hypocenter locations and earthquake magnitudes ranging between (Formula presented.) 6.5 and 7.2; (iii) high-resolution topography and bathymetry and seismic data that are incorporated into all GMS; (iv) simulation results, such as PGAs and PGVs versus (Formula presented.) and distances to fault ruptures ((Formula presented.)), of 2912 surface stations for all 57 GMS. More importantly, this research provides a massive database of displacement, velocity and acceleration time histories in all three directions over more than 20,000 stations at both surface and bedrock levels. Such site-specific high-density and -frequency simulated ground motions can notably contribute to the seismic risk assessment of this region and many other applications.

DOI 10.1002/eqe.3809

Cilt 52