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地震 ›› 1998, Vol. 18 ›› Issue (1): 83-88.

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热红外震兆成因的模拟实验研究

耿乃光1), 于萍2), 邓明德3), 崔承禹4), 罗灼礼5)   

  1. 1)中国北京 100081 国家地震局地球物理研究所;
    2)中国长沙 410001 湖南省地震局;
    3)中国北京 100039 国家地震局综合观测中心;
    4)中国北京 100101 中国科学院遥感应用研究所;
    5)中国北京 100036 国家地震局分析预报中心
  • 收稿日期:1997-04-24 修回日期:1997-06-09 出版日期:1998-01-31 发布日期:2022-05-10
  • 作者简介:耿乃光,男,1937年8月出生,研究员,主要从事震源物理实验研究工作。
  • 基金资助:
    国防科学技术工业委员会和国家地震局联合资助(Y95-10)

THE SIMULATED EXPERIMENTAL STUDIES ON CAUSE OF THERMAL INFRARED PRECURSOR OF EARTHQUAKES

Geng Naiguangn1), Yu Ping2), Deng Mingde3), Cui Chengyu4), Luo Zhuoli5)   

  1. 1) Institute of Geophysics, SSB, Beijing 100081, China;
    2) Seismological Bureau of Hunan Province, Changsha 410001, China;
    3) Comprehensive Observation Center, SSB, Beijing 100039, China;
    4) Institute of Remote Sensing Application, Academia Sinica, Beijing 100101, China;
    5) Center for Analysis and Prediction, SSB, Beijing, 100036, China
  • Received:1997-04-24 Revised:1997-06-09 Online:1998-01-31 Published:2022-05-10

摘要: 对完整岩石破裂前和既存断层粘滑失稳前的红外辐射温度场进行了遥感观测研究。发现岩石破裂前在未来断层处出现条带状的红外热像。粘滑失稳前断层闭锁点出现升温现象。声发射测量表明,岩石破裂前已有大量微破裂产生。 地亮中的既存断层和大震前的微小破裂均可能为震前地壳中的热能转移提供通道,从而导致地面热缸外震兆的出现。

关键词: 地震前兆, 遥感, 声发射, 模拟实验, 温度异常

Abstract: The infrared radiation temperature field before rock failure and fault stick-slipping has been studied by remote sensing observation. It is revealed that before rock failure the band-like thermal images appeared in the position of future faults, and before stick-slip­ping the lock points of fault show the temperature increases. The measurement of acoustic emission shows that before rock failure the plenty of micro fractures are produced. The faults and micro fracture in crust before earthquakes can provide paths for transference of thermal energy in crust, and cause the thermal infrared precursor of earthquakes on the ground.

Key words: Earthquake precursor, Remote sensing, Acoustic emission, Simulated ex-perimet, Temperature anomaly