Comparing the Performance of the NEEWS Earthquake Early Warning System Against the CWB System During the 6 February 2018 Mw 6.2 Hualien Earthquake

T. Y. Hsu; P. Y. Lin; H. H. Wang; H. W. Chiang; Y. W. Chang; C. H. Kuo; C. M. Lin; K. L. Wen

doi:10.1029/2018GL078079

Comparing the Performance of the NEEWS Earthquake Early Warning System Against the CWB System During the 6 February 2018 M_w 6.2 Hualien Earthquake

T. Y. Hsu, P. Y. Lin, H. H. Wang, H. W. Chiang, Y. W. Chang, C. H. Kuo, C. M. Lin, K. L. Wen

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

The National Center for Research on Earthquake Engineering, Taiwan, has developed an Earthquake Early Warning System (NEEWS). The NEEWS predicts peak ground acceleration (PGA) using an on-site approach, whereas the Central Weather Bureau (CWB), Taiwan, uses a regional approach. Earthquake alerts are issued at the NEEWS stations once PGA reaches a preassigned PGA threshold, regardless of the approach used. An earthquake with a magnitude of 6.2 and a focal depth of 10.0 km struck Hualien, in eastern Taiwan, on 6 February 2018. It resulted in 17 fatalities and 285 injuries, 4 collapsed buildings, and damage to more than 175 buildings. During the earthquake, the system performance of 28 NEEWS stations was documented. In this study, we compare and discuss the accuracy of the PGA predictions, lead times, and classification performance of both approaches.

Original language	English
Pages (from-to)	6001-6007
Number of pages	7
Journal	Geophysical Research Letters
Volume	45
Issue number	12
DOIs	https://doi.org/10.1029/2018GL078079
State	Published - 28 Jun 2018

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title = "Comparing the Performance of the NEEWS Earthquake Early Warning System Against the CWB System During the 6 February 2018 Mw 6.2 Hualien Earthquake",

abstract = "The National Center for Research on Earthquake Engineering, Taiwan, has developed an Earthquake Early Warning System (NEEWS). The NEEWS predicts peak ground acceleration (PGA) using an on-site approach, whereas the Central Weather Bureau (CWB), Taiwan, uses a regional approach. Earthquake alerts are issued at the NEEWS stations once PGA reaches a preassigned PGA threshold, regardless of the approach used. An earthquake with a magnitude of 6.2 and a focal depth of 10.0 km struck Hualien, in eastern Taiwan, on 6 February 2018. It resulted in 17 fatalities and 285 injuries, 4 collapsed buildings, and damage to more than 175 buildings. During the earthquake, the system performance of 28 NEEWS stations was documented. In this study, we compare and discuss the accuracy of the PGA predictions, lead times, and classification performance of both approaches.",

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AU - Chiang, H. W.

AU - Chang, Y. W.

AU - Kuo, C. H.

AU - Lin, C. M.

AU - Wen, K. L.

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Comparing the Performance of the NEEWS Earthquake Early Warning System Against the CWB System During the 6 February 2018 Mw 6.2 Hualien Earthquake

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Comparing the Performance of the NEEWS Earthquake Early Warning System Against the CWB System During the 6 February 2018 M_w 6.2 Hualien Earthquake