Performance of a Low‐Cost Earthquake Early Warning System (<i>P</i>‐Alert) during the 2016<i>M</i>_L 6.4 Meinong (Taiwan) Earthquake

Abstract

Research Article| August 03, 2016 Performance of a Low‐Cost Earthquake Early Warning System (P‐Alert) during the 2016 ML 6.4 Meinong (Taiwan) Earthquake Yih‐Min Wu; Yih‐Min Wu aDepartment of Geosciences, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 10617, [e-mail] Search for other works by this author on: GSW Google Scholar Wen‐Tzong Liang; Wen‐Tzong Liang bInstitute of Earth Sciences, Academia Sinica, 128 Academia Road Section 2, Taipei 11529, Taiwan Search for other works by this author on: GSW Google Scholar Himanshu Mittal; Himanshu Mittal aDepartment of Geosciences, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 10617, [e-mail] Search for other works by this author on: GSW Google Scholar Wei‐An Chao; Wei‐An Chao aDepartment of Geosciences, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 10617, [e-mail] Search for other works by this author on: GSW Google Scholar Cheng‐Horng Lin; Cheng‐Horng Lin bInstitute of Earth Sciences, Academia Sinica, 128 Academia Road Section 2, Taipei 11529, Taiwan Search for other works by this author on: GSW Google Scholar Bor‐Shouh Huang; Bor‐Shouh Huang bInstitute of Earth Sciences, Academia Sinica, 128 Academia Road Section 2, Taipei 11529, Taiwan Search for other works by this author on: GSW Google Scholar Che‐Min Lin Che‐Min Lin cNational Center for Research on Earthquake Engineering, National Applied Research Laboratories, 200 Hsin‐Hai Road Section 3, Taipei 10668, Taiwan Search for other works by this author on: GSW Google Scholar Author and Article Information Yih‐Min Wu aDepartment of Geosciences, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 10617, [e-mail] Wen‐Tzong Liang bInstitute of Earth Sciences, Academia Sinica, 128 Academia Road Section 2, Taipei 11529, Taiwan Himanshu Mittal aDepartment of Geosciences, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 10617, [e-mail] Wei‐An Chao aDepartment of Geosciences, National Taiwan University, 1 Roosevelt Road Section 4, Taipei 10617, [e-mail] Cheng‐Horng Lin bInstitute of Earth Sciences, Academia Sinica, 128 Academia Road Section 2, Taipei 11529, Taiwan Bor‐Shouh Huang bInstitute of Earth Sciences, Academia Sinica, 128 Academia Road Section 2, Taipei 11529, Taiwan Che‐Min Lin cNational Center for Research on Earthquake Engineering, National Applied Research Laboratories, 200 Hsin‐Hai Road Section 3, Taipei 10668, Taiwan Publisher: Seismological Society of America First Online: 14 Jul 2017 Online Issn: 1938-2057 Print Issn: 0895-0695 © 2016 by the Seismological Society of America Seismological Research Letters (2016) 87 (5): 1050–1059. https://doi.org/10.1785/0220160058 Article history First Online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Yih‐Min Wu, Wen‐Tzong Liang, Himanshu Mittal, Wei‐An Chao, Cheng‐Horng Lin, Bor‐Shouh Huang, Che‐Min Lin; Performance of a Low‐Cost Earthquake Early Warning System (P‐Alert) during the 2016 ML 6.4 Meinong (Taiwan) Earthquake. Seismological Research Letters 2016;; 87 (5): 1050–1059. doi: https://doi.org/10.1785/0220160058 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 SocietySeismological Research Letters Search Advanced Search ABSTRACT On 5 February 2016, a moderate earthquake occurred in southwestern Taiwan with ML 6.4 and a focal depth of 16.7 km. This earthquake caused damage to a few buildings and 117 casualties. A low‐cost earthquake early warning (EEW) system (P‐alert) is in operation for the purpose of EEW and for providing near‐real‐time shake maps. During this event, a detailed shaking map was generated by the P‐alert system within 2 min after the earthquake occurrence, and the high shaking regions strongly correlated with the locations in which the damage and casualties occurred. In the field, individual P‐alert devices also serve as onsite EEW systems using P‐wave information. The individual P‐alert provided a 4–8 s lead time before the arrival of violent shaking in the damaged regions. For regional EEW, both the Central Weather Bureau (CWB, official agency) and the P‐alert system responded very well. Currently, regional warnings in Taiwan are only provided to cities at epicentral distances of 50 km or more by the CWB. For cities within a 50‐km epicentral distance, the P‐alert system could be useful for providing onsite EEW. The performance of the P‐alert network during this earthquake proves the efficiency of this real‐time, low‐cost network in terms of early warning (regional and onsite), near‐real‐time shake maps, rapid reports, and strong‐motion data for research purposes. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.