1. Performance of the NCREE's on-site warning system during the 5 February 2016Mw6.53 Meinong earthquake
- Author
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Ting-Yu Hsu, Kuo-Liang Wen, Che Min Lin, Chun Hsiang Kuo, Hsui Hsien Wang, and Pei Yang Lin
- Subjects
Peak ground acceleration ,Earthquake engineering ,010504 meteorology & atmospheric sciences ,Warning system ,Southern taiwan ,Earthquake warning system ,Moment magnitude scale ,010502 geochemistry & geophysics ,01 natural sciences ,Geophysics ,Epicenter ,General Earth and Planetary Sciences ,Seismology ,Geology ,0105 earth and related environmental sciences - Abstract
The National Center for Research on Earthquake Engineering in Taiwan has developed an on-site earthquake early warning system (NEEWS). The Meinong earthquake with a moment magnitude of 6.53 and a focal depth of 14.6 km occurred on 5 February 2016 in southern Taiwan. It caused 117 deaths, injured 551, caused the collapse of six buildings, and serious damage to 247 buildings. During the Meinong earthquake, the system performance of 16 NEEWS stations was recorded. Based on a preassigned peak ground acceleration (PGA) threshold to issue alarms at different stations, no false alarms or missed alarms were issued during the earthquake. About 4 s to 33 s of lead time were provided by the NEEWS depending on the epicenter distance. In addition, the directivity of the earthquake source characteristic and also possibly the site effects were observed in the diagram of the distribution of PGA difference between the predicted PGA and the measured PGA.
- Published
- 2016