Detecting and Analyzing the Displacement of a Small-Magnitude Earthquake Cluster in Rong County, China by the GACOS Based InSAR Technology
A series of small-magnitude earthquakes (M<sub>w</sub> 2.9~M<sub>w</sub> 4.9) occurred in Rong County, Sichuan Province, China between 30 March 2018 and December 2020, which threatened the safety of local residents. Determining the surface displacement and estimating the dama...
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| Format: | Article |
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MDPI AG
2021-10-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/13/20/4137 |
| _version_ | 1797513183334760448 |
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| author | Liang Zhao Rubing Liang Xianlin Shi Keren Dai Jianhua Cheng Junxing Cao |
| author_facet | Liang Zhao Rubing Liang Xianlin Shi Keren Dai Jianhua Cheng Junxing Cao |
| author_sort | Liang Zhao |
| collection | DOAJ |
| description | A series of small-magnitude earthquakes (M<sub>w</sub> 2.9~M<sub>w</sub> 4.9) occurred in Rong County, Sichuan Province, China between 30 March 2018 and December 2020, which threatened the safety of local residents. Determining the surface displacement and estimating the damage caused by these earthquakes are significant for earthquake relief, post-earthquake disaster assessment and hazard elimination. This paper integrates the Generic Atmospheric Correction Online Service (GACOS) with interferometry synthetic aperture radar (InSAR) to accurately detect the displacement of the series of small-magnitude earthquakes in Rong County based on 45 Sentinel-1 ascending/descending images acquired from January 2018 to December 2020. We analyze the influence of some factors involved in surface displacement, including earthquake magnitude, focal depth and the distance from the epicenter to the fault. The above measurement for small-magnitude earthquakes and statistics analysis for the displacement have not been performed before, so this can help better understand the displacement features of small-magnitude earthquakes, which are important for post-earthquake hazard assessment and disaster prevention. |
| first_indexed | 2024-03-10T06:13:05Z |
| format | Article |
| id | doaj.art-30334c6263954bb98b421ff0655e1e6e |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T06:13:05Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-30334c6263954bb98b421ff0655e1e6e2023-11-22T19:54:44ZengMDPI AGRemote Sensing2072-42922021-10-011320413710.3390/rs13204137Detecting and Analyzing the Displacement of a Small-Magnitude Earthquake Cluster in Rong County, China by the GACOS Based InSAR TechnologyLiang Zhao0Rubing Liang1Xianlin Shi2Keren Dai3Jianhua Cheng4Junxing Cao5College of Geophysics, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Earth Science, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Earth Science, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Earth Science, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Earth Science, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Geophysics, Chengdu University of Technology, Chengdu 610059, ChinaA series of small-magnitude earthquakes (M<sub>w</sub> 2.9~M<sub>w</sub> 4.9) occurred in Rong County, Sichuan Province, China between 30 March 2018 and December 2020, which threatened the safety of local residents. Determining the surface displacement and estimating the damage caused by these earthquakes are significant for earthquake relief, post-earthquake disaster assessment and hazard elimination. This paper integrates the Generic Atmospheric Correction Online Service (GACOS) with interferometry synthetic aperture radar (InSAR) to accurately detect the displacement of the series of small-magnitude earthquakes in Rong County based on 45 Sentinel-1 ascending/descending images acquired from January 2018 to December 2020. We analyze the influence of some factors involved in surface displacement, including earthquake magnitude, focal depth and the distance from the epicenter to the fault. The above measurement for small-magnitude earthquakes and statistics analysis for the displacement have not been performed before, so this can help better understand the displacement features of small-magnitude earthquakes, which are important for post-earthquake hazard assessment and disaster prevention.https://www.mdpi.com/2072-4292/13/20/4137small-magnitude earthquakeRongxianGACOSInSAR |
| spellingShingle | Liang Zhao Rubing Liang Xianlin Shi Keren Dai Jianhua Cheng Junxing Cao Detecting and Analyzing the Displacement of a Small-Magnitude Earthquake Cluster in Rong County, China by the GACOS Based InSAR Technology Remote Sensing small-magnitude earthquake Rongxian GACOS InSAR |
| title | Detecting and Analyzing the Displacement of a Small-Magnitude Earthquake Cluster in Rong County, China by the GACOS Based InSAR Technology |
| title_full | Detecting and Analyzing the Displacement of a Small-Magnitude Earthquake Cluster in Rong County, China by the GACOS Based InSAR Technology |
| title_fullStr | Detecting and Analyzing the Displacement of a Small-Magnitude Earthquake Cluster in Rong County, China by the GACOS Based InSAR Technology |
| title_full_unstemmed | Detecting and Analyzing the Displacement of a Small-Magnitude Earthquake Cluster in Rong County, China by the GACOS Based InSAR Technology |
| title_short | Detecting and Analyzing the Displacement of a Small-Magnitude Earthquake Cluster in Rong County, China by the GACOS Based InSAR Technology |
| title_sort | detecting and analyzing the displacement of a small magnitude earthquake cluster in rong county china by the gacos based insar technology |
| topic | small-magnitude earthquake Rongxian GACOS InSAR |
| url | https://www.mdpi.com/2072-4292/13/20/4137 |
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