地下流体中强震源兆、场兆和强震远兆特征及其物理成因

地震 ›› 2002, Vol. 22 ›› Issue (3): 81-88.

地下流体中强震源兆、场兆和强震远兆特征及其物理成因

高小其, 许秋龙, 王道, 李艳萍, 崔勇, 范博勤

新疆维吾尔自治区地震局,新疆乌鲁木齐 830011

收稿日期:2001-08-21 修回日期:2002-01-15 出版日期:2002-07-31 发布日期:2021-12-21
作者简介:高小其(1967-),男,山东单县人,副研究员,主要从事地下流体监测、预报等研究。

The characteristics of the focal precursors, field precursors before moderately strong earthquakes and remote precursors before strong earthquakes and theirphysicalessence

GAO Xiao-qi, XU Qiu-long, WANG Dao, LI Yan-ping, CUI Yong, FAN Bo-qin

Seismological Bureau of Xinjiang Uygur Autonomous Region, Urumqi 830011, China

Received:2001-08-21 Revised:2002-01-15 Online:2002-07-31 Published:2021-12-21

摘要/Abstract

摘要： 初步分析了乌鲁木齐9、10号泉地下流体中强震源兆、场兆及强震远兆特征。结果表明,中强震源兆具体表现为震前1~ 2年观测点的绝大多数主测项出现同步性高值异常,临震前可能出现转折或反向,震后恢复正常;绝大多数中强震场兆则表现为观测点仅有部分测项出现短期异常变化;而强震场兆则表现为观测点少数映震性能较好的几个测项出现同步性较好的中期前兆异常;强震(群)远兆则主要表现为个别映震较好的测项出现前兆异常。并对震兆形成的原因进行了初步探讨。

关键词: 地下流体, 中强地震, 地震前兆, 新疆地区

Abstract: In this paper, the characteristics of focal precursors, field precursors of subsurface liquid before the moderately strong earthquakes and the remote precursors before the strong earthquakes are analyzed. The results show that the focal precursors of moderately strong events occurred 1-2 years before the moderately strong events, most of synchronous anomalies of major observational items occurred at the observational sites, the reverseor turning the anomalies might occur imminently before the moderately strong events and recovered after the events. Most of the field precursors are ex pressed as change of the short-termanomalies at a few observational sites rather than all the sites, while the field precursors of strong earthquakes occurred at a few observational sites, where only some observational items with good earth-quake-reflecting capacity showsynch ronous medium-termanomalies. The remote precursors of strong earthquakes (or earthquakeswarm) are mainly ex pressed as the precursory anomalies of few observational items with good earthquake-reflecting capacity. The cause of earthquake precursors is also preliminarily discussed.

Key words: Subsurface fluid, Moderately strong earthquake, Precursor, Xinjiangregion

中图分类号:

P315.72+3

高小其, 许秋龙, 王道, 李艳萍, 崔勇, 范博勤. 地下流体中强震源兆、场兆和强震远兆特征及其物理成因[J]. 地震, 2002, 22(3): 81-88.

GAO Xiao-qi, XU Qiu-long, WANG Dao, LI Yan-ping, CUI Yong, FAN Bo-qin. The characteristics of the focal precursors, field precursors before moderately strong earthquakes and remote precursors before strong earthquakes and theirphysicalessence[J]. EARTHQUAKE, 2002, 22(3): 81-88.

参考文献

[1] 王道. 新疆天山地区地下流体地下流体地震前兆研究的现状与发展前景[J].内陆地震, 1995, 9(2): 137-149.
[2] 张国民,耿鲁明,张永仙,等. 构造块体成组孕震模型和前兆场某些特征分析[J]. 地震学报, 1995, 17(1): 1-10.
[3] 朱令人,苏乃勤,杨马陵. 1997年新疆伽师强震群及三次成功的地震预报[J]. 中国地震, 1998(2): 101-114.
[4] 车用太,鱼金子.地下流体的源兆、场兆、远兆及其在地震预报中的意义[J]. 地震, 1997, 17(3): 283-288.
[5] 郭增建,秦保燕.震源物理[M].北京: 地震出版社, 1979. 102-103.
[6] 鱼金子,车用太,王广才,等.地震前兆台网监测能力评估方法及其在首都圈地区的试用[J].地震, 2000, 20(4): 7-11.
[7] 高小其,许秋龙.乌鲁木齐10号泉水汞短临前兆特征探讨[J].内陆地震. 1999, 13(1): 72-77.
[8] 高小其,王道,许秋龙,等.硫化物的映震特征及其映震机理的研究[J].地震, 2001, 21(1): 91-97.
[9] 高小其,许秋龙,李艳萍.乌鲁木齐10号泉流量映震特征的研究[J].地震研究, 2001, 24(3): 233-237.
[10] 高小其,李艳萍,许秋龙,等.伽师地震中北天山地区水化学的远场效应的研究[J]. 山西地震, 2000, (1): 34-39.
[11] 高小其,崔勇,李艳萍,等.天山地区地下流体大震(强震群)远场前兆异常的研究[J]. 高原地震, 2000, 12(4): 25-32.
[12] 王道. 哈萨克斯坦斋桑7. 3级地震前后的地下流体动力学效应[J].内陆地震, 1992, 4(4): 320-326.
[13] 朱令人. 能量预释放——试论短临突发前兆的物理本质[A].新疆维吾尔自治区地震局.新疆地震研究文集(1) [C].北京: 地震出版社, 1995. 103-108.
[14] 杜建国,康春丽.强震前兆异常特征与深部流体作用探讨[J].地震, 2000, 20(2): 95-100.
[15] 张国民. 中国大陆强震的韵律性特征[J].地震地质, 1987, 9(2): 27-37.
[16] 朱令人. 中强地震孕育特征和综合预报的讨论——以新疆天山地震带若干地震为例[A].新疆维吾尔自治区地震局.新疆地震研究文集(2) [C].乌鲁木齐: 新疆人民出版社, 2000. 3-10.