河北永清M 4.3地震北京烈度仪台网记录分析
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摘要
2018年2月12日河北永清发生M 4.3地震,北京烈度仪台网共35个台站获得有效记录,记录最大峰值加速度的台站为丰台地震台(D0001),峰值加速度为10.76cm/s2,该台距震中约61km。本文对北京烈度仪台网获得的此次地震动记录进行了初步分析,并对3个同台址的强震动仪记录的数据进行了对比分析。结果表明,烈度仪记录计算得出的仪器烈度与强震动仪记录计算的仪器烈度结果具有较高的一致性,可用于烈度速报。
An earthquake with magnitude 4.3 occurred on 12 February 2018 in Yongqing County, Langfang City of Hebei Province.There are 35 seismic stations that received the acceleration data in the Beijing seismic intensity meter network.The nearest station is Fengtai station,with an epicentral distance 61 km,and peak ground acceleration was 10.7 cm/s2. The farthest station is Sankuaishi station,with an epicentral distance 158 km, and the peak ground acceleration was 2.1 cm/s2.The preliminary analysis shows that the data recorded by the seismic intensity meters were clear and complete. Data recorded by the seismic intensity meter and the acceleration meters at the same station are comparable to each other.
An earthquake with magnitude 4.3 occurred on 12 February 2018 in Yongqing County, Langfang City of Hebei Province.There are 35 seismic stations that received the acceleration data in the Beijing seismic intensity meter network.The nearest station is Fengtai station,with an epicentral distance 61 km,and peak ground acceleration was 10.7 cm/s2. The farthest station is Sankuaishi station,with an epicentral distance 158 km, and the peak ground acceleration was 2.1 cm/s2.The preliminary analysis shows that the data recorded by the seismic intensity meters were clear and complete. Data recorded by the seismic intensity meter and the acceleration meters at the same station are comparable to each other.
引文
王浩,丁炜,2013.MEMS加速度计与传统地震加速度计的比较研究.大地测量与地球动力学,33(S2):93-95.
于海英,周宝峰,王家行等,2017.强震动观测仪器面临的机遇和挑战.震灾防御技术,12(1):68-77.
中国地震局监测预报司,2015.仪器地震烈度计算暂行规程.北京:地震出版社,1-10.
Clayton R.W.,Heaton T.,Kohler M.,et al.,2015.Community seismic network:a dense array to sense earthquake strong motion.Seismological Research Letters,86(5):1354-1363.
Cochran E.S.,Lawrence J.F.,Kaiser A.,et al.,2011.Comparison between low-cost and traditional MEMSaccelerometers:a case study from the M7.1 Darfield,New Zealand,aftershock deployment.Annals of Geophysics,54(6):728-737.
D’Alessandro A.,D’Anna G.,2013.Suitability of low-cost three-axis MEMS accelerometers in strong-motion seismology:tests on the LIS331DLH(iPhone)accelerometer.Bulletin of the Seismological Society of America,103(5):2906-2913.
Evans J.,R.Hamstra,R.H.,Kündig C.,et al.,2005.TREMOR:a wireless MEMS accelerograph for dense arrays.Earthquake Spectra,21(1):91-124.
Evans J.R.,Allen R.M.,Chung A.I.,et al.,2014.Performance of several low-cost accelerometers.Seismological Research Letters,85(1):147-158.
Hsieh C.Y.,Wu Y.M.,Chin T.L.,et al.,2014.Low cost seismic network practical applications for producing quick shaking maps in Taiwan.Terrestrial Atmospheric and Oceanic Sciences,25(5):617-624.
Wu Y.M.,Mittal H.,Huang T.C.,et al.,2018.Performance of a Low-Cost Earthquake Early Warning System(P-Alert)and Shake Map Production during the 2018 MW 6.4 Hualien,Taiwan,Earthquake.Seismological Research Letters,90(1):19-29.
于海英,周宝峰,王家行等,2017.强震动观测仪器面临的机遇和挑战.震灾防御技术,12(1):68-77.
中国地震局监测预报司,2015.仪器地震烈度计算暂行规程.北京:地震出版社,1-10.
Clayton R.W.,Heaton T.,Kohler M.,et al.,2015.Community seismic network:a dense array to sense earthquake strong motion.Seismological Research Letters,86(5):1354-1363.
Cochran E.S.,Lawrence J.F.,Kaiser A.,et al.,2011.Comparison between low-cost and traditional MEMSaccelerometers:a case study from the M7.1 Darfield,New Zealand,aftershock deployment.Annals of Geophysics,54(6):728-737.
D’Alessandro A.,D’Anna G.,2013.Suitability of low-cost three-axis MEMS accelerometers in strong-motion seismology:tests on the LIS331DLH(iPhone)accelerometer.Bulletin of the Seismological Society of America,103(5):2906-2913.
Evans J.,R.Hamstra,R.H.,Kündig C.,et al.,2005.TREMOR:a wireless MEMS accelerograph for dense arrays.Earthquake Spectra,21(1):91-124.
Evans J.R.,Allen R.M.,Chung A.I.,et al.,2014.Performance of several low-cost accelerometers.Seismological Research Letters,85(1):147-158.
Hsieh C.Y.,Wu Y.M.,Chin T.L.,et al.,2014.Low cost seismic network practical applications for producing quick shaking maps in Taiwan.Terrestrial Atmospheric and Oceanic Sciences,25(5):617-624.
Wu Y.M.,Mittal H.,Huang T.C.,et al.,2018.Performance of a Low-Cost Earthquake Early Warning System(P-Alert)and Shake Map Production during the 2018 MW 6.4 Hualien,Taiwan,Earthquake.Seismological Research Letters,90(1):19-29.