ATTENUATION RELATION OF JMA SEISMIC INTENSITY APPLICABLE TO NEAR SOURCE REGION

ATTENUATION RELATION OF JMA SEISMIC INTENSITY APPLICABLE TO NEAR SOURCE REGION
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JMA地震烈度适用于近震源区的衰减关系

DOI:
10.3130/aijs.71.201
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发表时间:
2006
期刊:
Journal of Structural and Construction Engineering (transactions of Aij)
影响因子:
--
通讯作者:
Y. Fukushima
Y. Fukushima
中科院分区:
--
文献类型:
--
作者:
S. Matsusaki;Y. Hisada;Y. Fukushima

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利用截至2005年8月的500多个地震的约28,000条记录,确定了适用于近震源区的JMA(日本气象厅)地震烈度衰减关系。通过与2003年十胜近海、宫城近海和2004年中越近海板间地震、板片地震和地壳地震资料的对比,验证了所确定的衰减关系。在这些比较中可以看到相当一致的近距离的来源。用该关系式计算的等烈度区与前人的研究结果有较好的对应关系。
Using about 28,000 records from over 500 events up to August 2005, we determined an attenuation relation of JMA (Japan Meteorological Agency) seismic intensity, which is applicable to near source region. The determined attenuation relation was verified by comparing with data of recent earthquakes : the 2003 Off Tokachi, Off Miyagi and 2004 Chuetsu earthquakes of inter-plate, slab and crustal events respectively. Fairly agreement can be seen in these comparisons at close distance to the source. Iso-seismic intensity area by our relation is well corresponding to results of previous studies.
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