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Magnitude determination for earthquake early warning using P-alert low-cost sensors during 2024 Mw7.4 Hualien, Taiwan earthquake
- Shin, T. C. & Teng, T. L. An overview of the 1999 Chi-Chi, Taiwan earthquake. Bull. Seism. Soc. Am. 91, 895–913. https://doi.org/10.1785/0120000738 (2001).
- Article Google Scholar
- Wu, Y. M., Hsiao, N. C. & Teng, T. L. Relationships between strong ground motion peak values and seismic loss during the 1999 Chi-Chi, Taiwan earthquake. Nat. Hazard. 32, 357–373. https://doi.org/10.1023/B:NHAZ.0000035550.36929.d0 (2004).
- Article Google Scholar
- Shih, D. C. F. & Wu, Y. M. Exploring building vibration dynamics in the wake of the Chi-Chi earthquake: Implications for natural hazard preparedness. Nat. Hazard. 120, 12851–12867. https://doi.org/10.1007/s11069-024-06721-y (2024).
- Article Google Scholar
- Wu, Y. M. et al. Performance of a low-cost earthquake early warning system (P-Alert) during the 2016 ML 6.4 Meinong (Taiwan) earthquake. Seism. Res. Lett. 87, 1050–1059. https://doi.org/10.1785/0220160058 (2016).
- Article Google Scholar
- Ma, K. F. & Wu, Y. M. Preface to the Focus Section on the 6 February 2018 Mw 6.4 Hualien, Taiwan, earthquake. Seism. Res. Lett. 90, 15–18. https://doi.org/10.1785/0220180356 (2018).
- Article Google Scholar
- Wikipedia. 2024 Hualien Earthquake, https://en.wikipedia.org/wiki/2024_Hualien_earthquake (2024). Accessed January 7 2025.
- Chang, J. M., Chao, W. A., Yang, C. M. & Huang, M. W. Coseismic and subsequent landslides of the 2024 Hualien earthquake (M7.2) on April 3 in Taiwan. Landslides 21, 2591–2595. https://doi.org/10.1007/s10346-024-02312-x (2024).
- Article Google Scholar
- Alcik, H., Ozel, O., Apaydin, N. & Erdik, M. A study on warning algorithms for Istanbul earthquake early warning system. Geophys. Res. Lett. 36, L00B05. https://doi.org/10.1029/2008GL036659 (2009).
- Article Google Scholar
- Lee, W. H. K. & Wu, Y. M. Earthquake Monitoring and Early Warning Systems. In Encyclopedia of Complexity and Systems Science (ed. Meyers, R. A.) 2496–2530 (Springer, New York, 2009).
- Chapter Google Scholar
- Nakamura, Y., Saita, J. & Sato, T. On an earthquake early warning system (EEW) and its applications. Soil Dyn. Earthquake Eng. 31, 127–136. https://doi.org/10.1016/j.soildyn.2010.04.012 (2011).
- Article Google Scholar
- Satriano, C., Wu, Y. M., Zollo, A. & Kanamori, H. Earthquake early warning: Concepts, methods and physical grounds. Soil Dyn. Earthq. Eng. 31, 106–118. https://doi.org/10.1016/j.soildyn.2010.07.007 (2011).
- Article Google Scholar
- Wu, Y. M., Shin, T. C. & Tsai, Y. B. Quick and reliable determination of magnitude for seismic early warning. Bull. Seism. Soc. Am. 88, 1254–1259. https://doi.org/10.1785/BSSA0880051254 (1998).
- Article Google Scholar
- Wu, Y. M. et al. Development of an integrated seismic early warning system in Taiwan. Terr. Atmos. Ocean. Sci. 10, 719–736. https://doi.org/10.3319/TAO.1999.10.4.719(T) (1999).
- Article Google Scholar
- Wu, Y. M. & Teng, T. L. A virtual subnetwork approach to earthquake early warning. Bull. Seism. Soc. Am. 92, 2008–2018. https://doi.org/10.1785/0120010217 (2002).
- Article Google Scholar
- Hsiao, N. C. The application of real-time strong-motion observations on the earthquake early warning in Taiwan (in Chinese with English abstract), Ph.D. thesis, 178 (Inst. of Geophys. Natl. Cent. Univ., Taiwan. 2007).
- Hsiao, N. C., Wu, Y. M., Shin, T. C., Zhao, L. & Teng, T. L. Development of earthquake early warning system in Taiwan. Geophys. Res. Lett. 36, L00B02. https://doi.org/10.1029/2008GL036596 (2009).
- Article Google Scholar
- Chen, D. Y., Hsiao, N. C. & Wu, Y. M. The Earthworm based earthquake alarm reporting system in Taiwan. Bull. Seism. Soc. Am. 105, 568–579. https://doi.org/10.1785/0120140147 (2015).
- Article Google Scholar
- Wu, Y. M., Mittal, H., Chen, D. Y., Hsu, T. Y. & Lin, P. Y. Earthquake early warning systems in Taiwan: Current status. J. Geol. Soc. India 97, 1525–1532. https://doi.org/10.1007/s12594-021-1909-6 (2021).
- Article Google Scholar
- CWA. Central Weather Administration News. https://www.cwa.gov.tw/Data/service/Newsbb/CH/Newsbb_20240403225329.pdf. (2024a). Accessed 7 January 2025.
- Cheloni, D., Famiglietti, N. A., Caputo, R., Tolomei, C. & Vicari, A. A composite fault model for the 2024 MW 7.4 Hualien earthquake sequence in eastern Taiwan inferred from GNSS and InSAR data. Geophys. Res. Lett. 51, e2024GL110255. https://doi.org/10.1029/2024GL110255 (2024).
- Article Google Scholar
- USGS. M 7.4 – 15 km S of Hualien City, Taiwan, https://earthquake.usgs.gov/earthquakes/eventpage/us7000m9g4/executive. (2024). Accessed July 31 2024.
- CWA. Central Weather Administration earthquake Report. https://scweb.cwa.gov.tw/en-us/earthquake/data (2024b). Accessed 7 January 2025.
- NTCP. New Taipei City Government News Report. https://www.ntpc.gov.tw/ch/home.jsp?id=e8ca970cde5c00e1&dataserno=d7e2181a099b0d790b20f88d208e64eb# (2024). Accessed January 7 2025.
- NCDR. National Science and Technology Center for Disaster Reduction Report. https://den1.ncdr.nat.gov.tw/1330/1334/1335/17836/17849/ (2024). Accessed January 7 2025.
- Song, G.Y. et al. Application of SeisComP at the Central Weather Administration (CWA) for Earthquake Monitoring and Early Warning: A Case Study of the 2024 ML 7.2 Hualien, Taiwan, Earthquake Sequence. In EGU General Assembly Conference Abstracts, 2025-May, EGU25-5275. 10.5194/egusphere-egu25-5275 (2025).
- Wu, Y. M. et al. A high-density seismic network for earthquake early warning in taiwan based on low cost sensors. Seism. Res. Lett. 84, 1048–1054. https://doi.org/10.1785/0220130085 (2013).
- Article Google Scholar
- Wu, Y.-M. & Lin, T.-L. A Test of Earthquake Early Warning System Using Low Cost Accelerometer in Hualien, Taiwan. In Early Warning for Geological Disasters: Scientific Methods and Current Practice (eds Wenzel, F. & Zschau, J.) 253–261 (Springer Berlin Heidelberg, Berlin, Heidelberg, 2014). https://doi.org/10.1007/978-3-642-12233-0_13.
- Chapter Google Scholar
- Wu, Y. M. et al. Performance of a low-cost earthquake early warning system (P-Alert) and shake map production during the 2018 Mw 6.4 Hualien, Taiwan earthquake. Seism. Res. Lett. 90, 19–29. https://doi.org/10.1785/0220180170 (2019).
- Article ADS Google Scholar
- Wu, Y. M. Progress on development of an earthquake early warning system using low-cost sensors. Pure Appl. Geophys. 172, 2343–2351. https://doi.org/10.1007/s00024-014-0933-5 (2015).
- Article ADS Google Scholar
- Yang, B. M., Mittal, H. & Wu, Y. M. Real-time production of PGA, PGV, intensity, and Sa Shakemaps using dense MEMS-based sensors in Taiwan. Sensors 21, 943. https://doi.org/10.3390/s21030943 (2021).
- Article ADS PubMed PubMed Central Google Scholar
- Mittal, H., Yang, B. M., Tseng, T. L. & Wu, Y. M. Importance of real-time PGV in terms of lead-time and shakemaps: Results using 2018 ML 6.2 & 2019 ML 6.3 Hualien Taiwan earthquakes. J. Asian Earth Sci. 220, 104936. https://doi.org/10.1016/j.jseaes.2021.104936 (2021).
- Article Google Scholar
- Mittal, H., Yang, B. M. & Wu, Y. M. Progress on the earthquake early warning and shakemaps system using low-cost sensors in Taiwan. Geosci. Lett. 9, 42. https://doi.org/10.1186/s40562-022-00251-w (2022).
- Article ADS Google Scholar
- Hsiao, N. C. et al. A new prototype system for earthquake early warning in Taiwan. Soil Dyn. Earthquake Eng. 31, 201–208. https://doi.org/10.1016/j.soildyn.2010.01.008 (2011).
- Article Google Scholar
- Nakamura, Y. On the urgent earthquake detection and alarm system (UrEDAS). Proc. of the 9th World Conference on Earthquake Engineering 7, 673–678 (1988).
- Kanamori, H. Real-time seismology and earthquake damage mitigation. Annu. Rev. Earth Planet. Sci. 33, 195–214. https://doi.org/10.1146/annurev.earth.33.092203.122626 (2005).
- Article ADS CAS Google Scholar
- Wu, Y. M. & Zhao, L. Magnitude estimation using the first three seconds P-wave amplitude in earthquake early warning. Geophys. Res. Lett. 33, 16. https://doi.org/10.1029/2006GL026871 (2006).
- Article CAS Google Scholar
- Wu, Y. M. & Kanamori, H. Rapid assessment of damage potential of earthquakes in Taiwan from the beginning of P waves. Bull. Seism. Soc. Am. 95, 1181–1185. https://doi.org/10.1785/0120040193 (2005).
- Article Google Scholar
- Wu, Y. M., Kanamori, H., Allen, R. M. & Hauksson, E. Determination of earthquake early warning parameters, τc and Pd, for southern California. Geophys. J. Int. 170, 711–717. https://doi.org/10.1111/j.1365-246X.2007.03430.x (2007).
- Article ADS Google Scholar
- Allen, R. M. & Kanamori, H. The potential for earthquake early warning in southern California. Science 300, 786–789. https://doi.org/10.1126/science.1080912 (2003).
- Article ADS CAS PubMed Google Scholar
- Yamada, M. & Mori, J. Using τc to estimate magnitude for earthquake early warning and effects of near-field terms. J. Geophys. Res. 114, B05301. https://doi.org/10.1029/2008JB006080 (2009).
- Article ADS Google Scholar
- Zollo, A., Amoroso, O., Lancieri, M., Wu, Y. M. & Kanamori, H. A threshold-based earthquake early warning using dense accelerometer networks. Geophys. J. Int. 183, 963–974. https://doi.org/10.1111/j.1365-246X.2010.04765.x (2010).
- Article ADS Google Scholar
- Zollo, A., Lancieri, M. & Nielsen, S. Earthquake magnitude estimation from peak amplitudes of very early seismic signals on strong motion records. Geophys. Res. Lett. 33, L23312. https://doi.org/10.1029/2006GL027795 (2006).
- Article ADS Google Scholar
- EPRI A criterion for determining exceedance of the operating basis earthquake. Electric Power Research Institute, Palo Alto, CA, prepared by Jack R. Benjamin and Associates, Inc., Report No:NP-5930. https://www.osti.gov/biblio/6968267 (1988).
- Erdik, M. et al. Istanbul earthquake rapid response and the early warning system. Bull. Earthquake Eng. 1, 157–163. https://doi.org/10.1023/A:1024813612271 (2003).
- Article Google Scholar
- Wu, Y. M. & Teng, T. L. Near real-time magnitude determination for large crustal earthquakes. Tectonophysics 390, 205–216. https://doi.org/10.1016/j.tecto.2004.03.029 (2004).
- Article ADS Google Scholar
- Kramer, S. L. & Mitchell, R. A. Ground motion intensity measures for liquefaction hazard evaluation. Earthq. Spectra 22, 413–438. https://doi.org/10.1193/1.2194970 (2006).
- Article Google Scholar
- Huang, H.Y. & Wu, Y.M. Magnitude Estimation and Onsite Earthquake Early Warning using Cumulative Absolute Velocity in Taiwan. EGU General Assembly Conference Abstracts, 2021-April, EGU21-8570. 10.5194/egusphere-egu21-8570 (2021).
- Wu, Y. M., Mittal, H., Lin, Y. H. & Chang, Y. H. Magnitude determination using cumulative absolute absement for earthquake early warning. Geosci. Lett. 10, 59. https://doi.org/10.1186/s40562-023-00314-6 (2023).
- Article ADS Google Scholar
- Wu, Y.M. Cumulative absolute absement for magnitude determination in earthquake early warning system using low-cost sensors. In EGU General Assembly Conference Abstracts, 2024-Mar, EGU24-2969. 10.5194/egusphere-egu24-2969 (2024).
- Allen, R. V. Automatic earthquake recognition and timing from single traces. Bull. Seism. Soc. Am. 68, 1521–1532. https://doi.org/10.1785/BSSA0680051521 (1978).
- Article Google Scholar
- Wu, Y. M. & Kanamori, H. Experiment on an onsite early warning method for the Taiwan early warning system. Bull. Seism. Soc. Am. 95, 347–353. https://doi.org/10.1785/0120040097 (2005).
- Article Google Scholar
- Wu, Y. M., Yen, H. Y., Zhao, L., Huang, B. S. & Liang, W. T. Magnitude determination using initial P waves: A single-station approach. Geophys. Res. Lett. 33, L05306. https://doi.org/10.1029/2005GL025395 (2006).
- Article ADS Google Scholar
- Yang, B. M., Huang, T. C. & Wu, Y. M. ShakingAlarm: A non-traditional regional earthquake early warning system based on time-dependent anisotropic peak ground motion attenuation relationships. Bull. Seism. Soc. Am. 108, 1219–1230. https://doi.org/10.1785/0120170105 (2018).
- Article Google Scholar
- Kodera, Y. et al. The propagation of local undamped motion (PLUM) method: A simple and robust seismic wavefield estimation approach for earthquake early warning. Bull. Seism. Soc. Am. 108, 983–1003. https://doi.org/10.1785/0120170085 (2018).
- Article Google Scholar
- Jan, J. C., Huang, H. H., Wu, Y. M., Chen, C. C. & Lin, C. H. Near-real-time estimates on earthquake rupture directivity using near-field ground motion data from a dense low-cost seismic network. Geophys. Res. Lett. 45, 7496–7503. https://doi.org/10.1029/2018GL078262 (2018).
- Article ADS Google Scholar
