地震地磁观测与研究2024，Vol.45Issue(2)：76-83,8.DOI:10.3969/j.issn.1003-3246.2024.02.010
丽江地区丽江—小金河断裂带基岩地温异常变化与地震关系初探
Preliminary study on the relationship between abnormal bedrock ground temperature changes and earthquake occurrence of Lijiang-Xiaojinhe fault
杨珍珍 1陈瑜1
作者信息
- 1. 中国云南 674199 丽江市古城区地震局
- 折叠
摘要
Abstract
In this paper,we use high-precision ground temperature observation data of bedrock from five observation sites near the Lijiang-Xiaojinhe fault and analyze them in comparison with seismic activities in the same region.We found several earthquakes occurring within a certain range,after the abnormal changes of bedrock ground temperature.The results showed that:① no obvious anomalies in bedrock ground temperature were observed before the Ninglang MS 5.5 earthquake;however,after the MS 5.5 earthquake and before the Ninglang MS 4.6 earthquake,obvious anomalies in bedrock ground temperature were observed,accompanied by macroscopic anomalies.② The bedrock ground temperature anomalies are different in magnitude and show different change patterns at different tectonic locations,showing the complexity of the anomaly distribution.In conclusion,the bedrock ground temperature anomalies along the Lijiang-Xiaojinhe fault have a better seismic reflection effect on the earthquakes near the rupture zone,but they also show the complexity of the anomaly distribution,which needs further study with more earthquake cases.关键词
基岩高精度地温/丽江—小金河断裂/地震活动性Key words
high-precision ground temperature/Lijiang-Xiaojinhe fault/seismic activity引用本文复制引用
杨珍珍,陈瑜..丽江地区丽江—小金河断裂带基岩地温异常变化与地震关系初探[J].地震地磁观测与研究,2024,45(2):76-83,8.
