Magnitude scaling relationships from the first 3 s of P-wave arrivals in South Korea SCIE SCOPUS

Cited 5 time in WEB OF SCIENCE Cited 5 time in Scopus
Title
Magnitude scaling relationships from the first 3 s of P-wave arrivals in South Korea
Author(s)
Park, Yongcheol; Park, Sun-Cheon; Kim, Kwang-Hee; Park, Minkyu; Lee, Joohan
Publication Year
2010-10
Abstract
Two empirical magnitude scaling relationships, predominant period (tau(max)(p)) and peak ground displacement (Pd) magnitudes, were investigated for the first 3 s after P-wave arrivals using 1,412 vertical waveforms recorded by the Korea National Seismic Network (KNSN) between 2001 and 2007. To evaluate the accuracy of the derived magnitude relationships, we simulated off-line ElarmS tests using 65 events occurring inside the KNSN. While the average magnitude error was similar to 0.70 magnitude units when using only the closest station to the epicentre, the error dropped to similar to 0.62 and similar to 0.42 magnitude units when using the closest two and closest four stations, respectively. For events M(L) >= 3.0, the average magnitude error was similar to 0.33 and showed stable values when the closest four stations were available. Our magnitude scaling relationships may be useful for initial work in developing an earthquake early warning system in South Korea.
ISSN
1383-4649
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4033
DOI
10.1007/s10950-010-9198-3
Bibliographic Citation
JOURNAL OF SEISMOLOGY, v.14, no.4, pp.761 - 768, 2010
Publisher
SPRINGER
Keywords
P wave magnitude; Earthquake early warning; Earthquake location; Seismic array
Type
Article
Language
English
Document Type
Article
Publisher
SPRINGER
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