Lessons Learned from Source Rupture to Strong Ground Motion Simulations: An Example from Taiwan

Abstract

Research Article| September 25, 2017 Lessons Learned from Source Rupture to Strong Ground Motion Simulations: An Example from Taiwan Shiann‐Jong Lee Shiann‐Jong Lee aInstitute of Earth Sciences, Academia Sinica, Number 128, Section 2, Academia Road, Nankang, Taipei 11529, Taiwan, sjlee@earth.sinica.edu.tw Search for other works by this author on: GSW Google Scholar Author and Article Information Shiann‐Jong Lee aInstitute of Earth Sciences, Academia Sinica, Number 128, Section 2, Academia Road, Nankang, Taipei 11529, Taiwan, sjlee@earth.sinica.edu.tw Publisher: Seismological Society of America First Online: 27 Sep 2017 Online Issn: 1943-3573 Print Issn: 0037-1106 Bulletin of the Seismological Society of America (2017) 107 (5): 2106–2116. https://doi.org/10.1785/0120170030 Article history First Online: 27 Sep 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Shiann‐Jong Lee; Lessons Learned from Source Rupture to Strong Ground Motion Simulations: An Example from Taiwan. Bulletin of the Seismological Society of America 2017;; 107 (5): 2106–2116. doi: https://doi.org/10.1785/0120170030 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract Regional moderate earthquakes could potentially pose serious seismic hazards to highly populated near‐source areas. Factors that could enhance ground shaking include the rupture process, seismic radiation, and wave propagation effects. Despite the fact that these factors are complex and are highly correlated during an earthquake, most previous studies investigated them individually. Here, five examples of moderate earthquakes in Taiwan with comprehensive numerical source and path studies on the basis of computational seismology were presented. In these cases, the finite‐fault source models were first analyzed by joint inversion with regional 3D Green’s functions. Thereafter, the inverted finite‐fault models were used to perform seismic‐wave propagation simulations based on a 3D spectral element method. Results show that the source radiation pattern, rupture directivity, and sediment‐induced amplification are the main factors that usually interact and control the degree of ground motion. The collective results indicate that the source and path effects should be considered simultaneously to produce a more precise prediction of ground motion, especially for moderate events that occur in a complex tectonic region. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.