Magnitude estimation for early warning applications using the initial part of P waves: A case study on the 2008 Wenchuan sequence

Geophysical Research Letters

Volumn 36, Issue 16, 2009, Pages

  Wang, Weitao ^a   Ni, Sidao ^a   Chen, Yong ^a   Kanamori, Hiroo ^b  

^a UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA   (China)

^b CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

PALLADIUM;

AMPLITUDE PARAMETERS; DEPTH RANGE; EARLY WARNING; EARTHQUAKE EARLY WARNING; EPICENTRAL DISTANCES; FALSE ALARMS; FOCAL DEPTH; FOCAL MECHANISM; MAGNITUDE ESTIMATION; P WAVES; SOURCE MECHANISMS; WENCHUAN EARTHQUAKE;

EARTHQUAKES;

AFTERSHOCK; EARLY WARNING SYSTEM; EARTHQUAKE EPICENTER; EARTHQUAKE EVENT; EARTHQUAKE MAGNITUDE; FOCAL MECHANISM; P-WAVE; SOURCE PARAMETERS;

EID: 71949109673     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2009GL038678     Document Type: Article

References (21)

1. Allen, R. V. (1978), Automatic earthquake recognition and timing from single traces, Bull. Seismol. Soc. Am., 68, 1521-1532.
2. Bakun, W. H., F. G. Fischer, E. G. Jensen, and J. Van-Schaack (1994), Early warning system for aftershocks, Bull. Seismol. Soc. Am., 84, 359-365.
3. Burchfiel, B. C., et al. (2008), A geological and geophysical context for the Wenchuan earthquake of 12 May 2008, Sichuan, People's Republic of China, GSA Today, 18(7), 4-11, doi:10.1130/GSATG18A.1.
4. Espinosa-Aranda, J., A. Jiménez, G. Ibarrola, F. Alcantar, A. Aguilar, M. Inostroza, and S, Maldonado (1995), Mexico City seismic alert system, Seismol. Res. Lett, 66, 42-53.
5. Horiuchi, S., H. Negishi, K. Abe, A. Kamimura, and Y. Fujinawa (2005), An automatic processing system for broadcasting earthquake alarms, Bull. Seismol. Soc. Am., 95, 708-718, doi:10.1785/0120030133.
6. Kanamori, H. (2005), Real-time seismology and earthquake damage mitigation, Annu. Rev. Earth Planet. Sci., 33,195-214, doi:10.1146/annurev. earth.33.092203.122626.
7. Nakamura, Y. (1988), On the urgent earthquake detection and alarm system (UrEDAS), in Proceedings of the Ninth World Conference on Earthquake Engineering, vol.VII, pp. 673-678, Balkema, Rotterdam, Netherlands.
8. Odaka, Y., K. Ashiya, S. Tsukada, S. Sato, K. Ohtake, and D. Nozaka (2003), A new method of quickly estimating epicentral distance and magnitude from a single seismic record, Bull. Seismol. Soc. Am., 93, 526-532, doi:10.1785/0120020008.
9. Olson, E. L., and R. M. Allen (2005), The deterministic nature of earthquake rupture, Science, 438, 212-215.
10. Wolfe, C. J. (2006), On the properties of predominant-period estimators for earthquake early warning, Bull. Seismol. Soc. Am., 96, 1961-1965, doi:10.1785/0120060017. (Pubitemid 44613015)
11. Wu, Y. M., and H. Kanamori (2005a), Experiment on an onsite early warning method for the Taiwan early warning system, Bull. Seismol. Soc. Am., 95, 347-353, doi:10.1785/0120040097. (Pubitemid 40621492)
12. Wu, Y. M., and H. Kanamori (2005b), Rapid assessment of damaging potential of earthquakes in Taiwan from the beginning of P waves, Bull. Seismol. Soc. Am., 95, 1181-1185, doi:10.1785/0120040193.
13. Wu, Y. M., and H. Kanamori (2008), Exploring the feasibility of on-site earthquake early warning using close-in records of the 2007 Noto Hanto earthquake, Earth Planets Space, 60, 155-160.
14. Wu, Y. M., and T. L. Teng (2002), A virtual sub-network approach to earthquake early warning, Bull. Seismol. Soc. Am., 92, 2008-2018, doi:10.1785/0120010217.
15. Wu, Y-M., and L. Zhao (2006), Magnitude estimation using the first three seconds P-wave amplitude in earthquake early warning, Geophys. Res. Lett, 33, L16312, doi:10.1029/2006GL026871.
16. Wu, Y. M., H. Kanamori, R. Allen, and E. Hauksson (2007), Determination of earthquake early warning parameters, rc and Pd for southern California, Geophys. J. Int., 170, 711-717, doi:10.1111/j.l365-246X. 2007.03430.x.
17. Wu, Y. M., T. C. Shin, and Y. B. Tsai (1998), Quick and reliable determination of magnitude for seismic early warning, Bull. Seismol. Soc. Am., 88, 1254-1259.
18. Wu, Y. M., H. Y. Yen, L. Zhao, B. S. Huang, and W. T. Liang (2006), Magnitude determination using initial P waves: A single-station approach, Geophys. Res. Lett, 33, L05306, doi:10.1029/2005GL025395.
19. Yamada, T., and S. Ide (2008), Limitation of the predominant period estimator for earthquake early warning and the initial rupture of earthquakes, Bull. Seismol. Soc. Am., 98, 2739-2745, doi:10.1785/0120080144.
20. Zheng, X. F., et al. (2009a), Technical system construction of Data Backup Centre for China Seismograph Network and the data support to researches on the Wenchuan earthquake (in Chinese), Chin. J. Geophys., 52(5), 1412-1417, doi:10.3969/j.issn.0001-5733.
21. Zheng, Y., H. Ma, J. Lv, S. Ni, Y Li, and S. Wei (2009b), Source mechanism of strong aftershocks (Ms5.6) of the 2008/05/12 Wenchuan earthquake and the implication for seismotectonics, Sci. China Ser. D, 52(6), 739-753, doi:10.1007/s11430-009-0074-3.