| 苍山5.2级地震前的测震学异常特征 |
| |
| 引用本文： | 周焕鹏,徐文华.苍山5.2级地震前的测震学异常特征[J].地震研究,1999,22(1):42-46. |
| |
| 作者姓名： | 周焕鹏 徐文华 |
| |
| 作者单位： | [1]山东省地震局 [2]大山地震局 |
| |
| 基金项目： | 中国地震局九五攻关课题 |
| |
| 摘 要： | 本利用山东，江苏省地震台网的资料，对苍山５．２级地震前沂沭带南段地震活动性参 的变化特征进行了分析研究。发现苍山５．２级地震前沂沭带南段３、４级地震活动增强，应变能释放速率加速，地震波速比的时空变化，震前出现明显的低值异常时段和低值异常区。据比异常变化曾在震前提出过预报意见。
|
| 关 键 词： | 苍山地震 迁移规律 波速比 沂沭断裂带 地震前兆 |
THE CHARACTERISTICS OF SEISMOMETRICAL ANOMALY BEFORE THE M5 2 CHANGSHAN EARTHQUAKE |
| |
| Zhou Huanpeng,Xu Wenhua.THE CHARACTERISTICS OF SEISMOMETRICAL ANOMALY BEFORE THE M5 2 CHANGSHAN EARTHQUAKE[J].Journal of Seismological Research,1999,22(1):42-46. |
| |
| Authors: | Zhou Huanpeng Xu Wenhua |
| |
| Abstract: | Using the data from the networks in Shangdong and Jiansu Provinces, the variation characteristics of seimicity parameters in the south segment of the Yume fracture zone before the M5 2 Changshan earthquake are analyzed in this paper. The anomalous variations before the earthquake including M3 4 seismicity increase, increase of release rate of strain energy and time-space variation in Vp/Vs ratio were found and on these grouds, the prediction opinion was put forward before the earthquake. |
| |
| Keywords: | The Changshan earthquake migration law Vp/Vs ratio and the Yimu fracture zone |
| 本文献已被 CNKI 维普 等数据库收录！ |
