TY - JOUR
T1 - Reliability assessment on earthquake early warning
T2 - A case study from Taiwan
AU - Xu, Yun
AU - Wang, J. P.
AU - Wu, Yih Min
AU - Kuo-Chen, Hao
N1 - Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Earthquake early warning (EEW) has been implemented in several regions around the world. However, because of natural randomness and uncertainty, false alarm and missed alarm can be expected in EEW. The key scope of this study is to evaluate the reliability of an on-site EEW in Taiwan, by testing the system's algorithm with 17,836 earthquake data from 1999 to 2013. The analysis shows that the on-site EEW system, empirically speaking, should have a false-alarm probability of 2.5%, and a missed-alarm probability of 14.1%. Considering missed alarm should be more critical to EEW, a new algorithm that could reduce the system's missed-alarm occurrences to 6% is also discussed in this paper.
AB - Earthquake early warning (EEW) has been implemented in several regions around the world. However, because of natural randomness and uncertainty, false alarm and missed alarm can be expected in EEW. The key scope of this study is to evaluate the reliability of an on-site EEW in Taiwan, by testing the system's algorithm with 17,836 earthquake data from 1999 to 2013. The analysis shows that the on-site EEW system, empirically speaking, should have a false-alarm probability of 2.5%, and a missed-alarm probability of 14.1%. Considering missed alarm should be more critical to EEW, a new algorithm that could reduce the system's missed-alarm occurrences to 6% is also discussed in this paper.
KW - Earthquake early warning
KW - False alarm
KW - Missed alarm
KW - Taiwan
UR - http://www.scopus.com/inward/record.url?scp=84994704314&partnerID=8YFLogxK
U2 - 10.1016/j.soildyn.2016.10.015
DO - 10.1016/j.soildyn.2016.10.015
M3 - 期刊論文
AN - SCOPUS:84994704314
SN - 0267-7261
VL - 92
SP - 397
EP - 407
JO - Soil Dynamics and Earthquake Engineering
JF - Soil Dynamics and Earthquake Engineering
ER -