Abstract
Providing warning notification several seconds before dangerous earthquake waves arrive at a target site reduces the property damages and human casualties. Most earthquake early warning systems (EEWS) developed are either regional (“network based”) or on-site (“stand alone”) systems. The recent upgrade of the seismic network in Romania with high dynamic range accelerometers allows recording of moderate to large magnitude earthquakes at very close epicentral distances (less than 10–20 km). This allows an increase of the warning lead-time (the time difference between the alert notification time and the arrival time of potentially destructive waves at a given target). The seismicity of Romania is significantly affected by earthquakes produced by the Vrancea seismic source with intermediate depth events (three shocks/century with magnitude Mw greater than 7.0). In this paper we present the performance of the seismic network in rapidly locate events occurring in the Vrancea area. Since rapid location of earthquakes is the first step in issuing early warning notifications, by reducing the time of the first valid location will lead to an increase the lead-time interval. Also rapid location of events will allow a future upgrade of EEWS to cover the entire Romanian territory.
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Alcik H, Ozel O, Apaydın N, Erdik M (2009) A study on warning algorithms for Istanbul earthquake early warning system. Geophys Res Lett 36:L00B05
Allen RM, Kanamori H (2003) The potential for earthquake early warning in southern California. Science 300:685–848
Allen RM, Brown H, Hellweg M, Khainovski O, Lombard P, Neuhauser D (2009) Real-time earthquake detection and hazard assessment by ElarmS across California. Geophys Res Lett 36:L00B08. doi:10.1029/2008GL036766
Böse M, Lonescu C, Wenzel F (2007) Earthquake early warning for Bucharest, Romania: novel and revised scaling relations. Geophys Res Lett 34:1–6
Espinosa-Aranda JM, Cuellar A, Garcia A, Ibarrola G, Islas R, Maldonado S, Rodriguez FH (2009) Evolution of the Mexican Seismic Alert System (SASMEX). Seismol Res Lett 80:694–706
Horiuchi S, Negishi H, Abe K, Kamimura A, Fujinawa Y (2005) An automatic processing system for broadcasting system earthquake alarms. Bull Sesim Soc Am 95:347–353
Mărmureanu A (2009) Rapid magnitude determination for Vrancea early warning system. Rom J Phys 54(9–10):2009
Mărmureanu A, Ionescu C, Cioflan CO (2010) Advanced real-time acquisition of the Vrancea earthquake early warning system. Soil Dyn Earthq Eng. doi:10.1016/j.soildyn.2010.10.002
Nakamura Y (1984) Development of earthquake early-warning system for the Shinkansen, some recent earthquake engineering research and practical in Japan. In: The Japanese national committee of the international association for earthquake engineering, pp 224–238
Nakamura Y (1988) On the urgent earthquake detection and alarm system (UrEDAS). In: Proceedings 9th world conference earthquake engineering, vol 7, pp 673–678
Odaka T, Ashiya K, Tsukada S, Sato S, Ohtake K, Nozaka D (2003) A new method of quickly estimating epicentral distance and magnitude from a single seismic record. Bull Seismol Soc Am 93:526–532
Peng H, Wu Z, Wu YM, Yu S, Zhang D, Huang W (2011) Developing a prototype earthquake early warning system in the Beijing Capital Region. Seismol Res Lett 82:394–403
Satriano C, Elia L, Martino C, Lancieri M, Zollo A, Iannaccone G (2010) PRESTo, the earthquake early warning system for Southern Italy: concepts, capabilities and future perspectives. Soil Dyn Earthquake Eng. doi:10.1016/j.soildyn.2010.06.008
Wu YM, Zhao L (2006) Magnitude estimation using the first three seconds P-wave amplitude in earthquake early warning. Geophys Res Lett 33:L16312. doi:10.1029/2006GL026871
Zollo A, Lancieri M, Nielsen S (2006) Earthquake magnitude estimation from peak amplitudes of very early seismic signals on strong motion records. Geophys Res Lett 33:L23312. doi:10.1029/2006GL027795
Acknowledgments
This work was supported by a grant of the Romanian National Authority for Scientific Research, CNCS—UEFISCDI, project number PN-II-RU-TE-2012-3-0215.
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Marmureanu, A., Craiu, M., Craiu, A. et al. Vrancea earthquake early warning system: first tests to add location capabilities. Acta Geod Geophys 50, 121–130 (2015). https://doi.org/10.1007/s40328-014-0081-5
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DOI: https://doi.org/10.1007/s40328-014-0081-5