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使用中国地震台网资料快速测定中强地震矩震级
Rapid calculation of the moment magnitude of moderate and strong earthquakes by using the data from China Seismic Network
- DOI:
- 作者:
- 陈宏峰1) 袁菲2) 徐志国3) 殷翔4) 苗春兰1) 邹立晔1) 马延路1)
Chen Hongfeng1), Yuan Fei2), Xu Zhiguo3), Yin Xiang2), Miao Chunlan1), Zou Liye1) and Ma Yanlu1)
- 作者单位:
- 1) 中国北京100045中国地震台网中心2) 中国河北050031河北行政学院3) 中国北京100081国家海洋环境预报中心.4) 中国江苏210000南京地震台
1) China Earthquake Networks Center, Beijing 100045, China2) Hebei Academy of Governance, Hebei Province 050031, China3) National Marine Environmental Forecasting Center, Beijing 100081, China4) Nanjing Seismic Station, Jiangsu Province, 210000, China
- 关键词:
- 中强地震；快速CMT；震源机制；矩震级；面波震级；关系
moderate and strong earthquakes, quick CMT, focal mechanism, moment magnitude, surface wave magnitude, relationship
- 摘要:
-
利用中国地震台网数字地震资料，选取国内MS5.3地震波形数据，采用长周期波形拟合方法，快速计算2008年至今86个中强震的标量地震矩M0和矩震级MW，并将MW与GCMT的测定结果及中国地震台网中心测定的面波震级MS进行对比。结果表明：矩震级与GCMT测定一致，与中国地震台网中心测定的面波震级关系为MW = 0.86MS + 0.63。
The scalar seismic moment M0 and moment magnitude MW of the 86 earthquakes with MS5.3 since 2008 inChinaare calculated rapidly, by long-period fitting, with the digital data from China Seismograph Network. MW in this paper are compared with the ones from GCMT and with the surface wave magnitude MS from CENC. It is shown that the moment magnitudes we calculate are in accordance with measurements from GCMT and the relationship between our MW and CENC’s MS is MW = 0.86 MS + 0.63.
