Multi Field Coupled Coseismic Changes of the Jiashi Ms = 6.4 Earthquake of 19 January 2020, Based on Ground Temperature Observation
The coseismic geothermal changes of ground temperature observed at observatories near the epicenter of the 2020 Jiashi Ms = 6.4 earthquake in China, provide a unique opportunity to study heat generation and conduction in rock. Here, evolutions of rock temperature at the Xikeer, Jiashizongchang, and...
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MDPI AG
2022-01-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/2/154 |
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| author | Donghui Jia Binbin Zhao Huaizhong Yu Yuchuan Ma Yuan Xiang Wei Yan |
| author_facet | Donghui Jia Binbin Zhao Huaizhong Yu Yuchuan Ma Yuan Xiang Wei Yan |
| author_sort | Donghui Jia |
| collection | DOAJ |
| description | The coseismic geothermal changes of ground temperature observed at observatories near the epicenter of the 2020 Jiashi Ms = 6.4 earthquake in China, provide a unique opportunity to study heat generation and conduction in rock. Here, evolutions of rock temperature at the Xikeer, Jiashizongchang, and Gedaliang observatories, which are located at epicentral distances of 1.4, 27.42, and 50 km respectively, were analyzed. Significant coseismic geothermal changes of 0.0432 °C were observed at the Xikeer observatory at the depth of 33.38 m, at which clear diurnal variations can be observed. Smaller changes of ~0.0001 °C were observed at the depths of 12.3 and 22.8 m at the Xikeer observatory and 22.3 m at the Jiashizongchang observatory. The stress transfer induced by the coseismic rupture induced a rise in local ground temperature, but the magnitude of the change was relatively small. The larger amplitude change at the Xikeer observatory was caused by fluid infiltration. We note that diurnal variation has been recorded at the Gedaliang observatory, but the coseismic response is no longer in existence. The temperature increases at the hypocentral area were higher than expected in the ground due to the coseismic stress transfer, but the change attenuated rapidly with distance. |
| first_indexed | 2024-03-09T22:39:17Z |
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| id | doaj.art-06391231c93e4468a40e7c32184281e0 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-09T22:39:17Z |
| publishDate | 2022-01-01 |
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| series | Atmosphere |
| spelling | doaj.art-06391231c93e4468a40e7c32184281e02023-11-23T18:43:07ZengMDPI AGAtmosphere2073-44332022-01-0113215410.3390/atmos13020154Multi Field Coupled Coseismic Changes of the Jiashi Ms = 6.4 Earthquake of 19 January 2020, Based on Ground Temperature ObservationDonghui Jia0Binbin Zhao1Huaizhong Yu2Yuchuan Ma3Yuan Xiang4Wei Yan5Xinjiang Pamir Intracontinental Subduction National Field Observation and Research Station, Urumqi 830011, ChinaXinjiang Pamir Intracontinental Subduction National Field Observation and Research Station, Urumqi 830011, ChinaChina Earthquake Networks Center, Beijing 100045, ChinaChina Earthquake Networks Center, Beijing 100045, ChinaXinjiang Pamir Intracontinental Subduction National Field Observation and Research Station, Urumqi 830011, ChinaXinjiang Pamir Intracontinental Subduction National Field Observation and Research Station, Urumqi 830011, ChinaThe coseismic geothermal changes of ground temperature observed at observatories near the epicenter of the 2020 Jiashi Ms = 6.4 earthquake in China, provide a unique opportunity to study heat generation and conduction in rock. Here, evolutions of rock temperature at the Xikeer, Jiashizongchang, and Gedaliang observatories, which are located at epicentral distances of 1.4, 27.42, and 50 km respectively, were analyzed. Significant coseismic geothermal changes of 0.0432 °C were observed at the Xikeer observatory at the depth of 33.38 m, at which clear diurnal variations can be observed. Smaller changes of ~0.0001 °C were observed at the depths of 12.3 and 22.8 m at the Xikeer observatory and 22.3 m at the Jiashizongchang observatory. The stress transfer induced by the coseismic rupture induced a rise in local ground temperature, but the magnitude of the change was relatively small. The larger amplitude change at the Xikeer observatory was caused by fluid infiltration. We note that diurnal variation has been recorded at the Gedaliang observatory, but the coseismic response is no longer in existence. The temperature increases at the hypocentral area were higher than expected in the ground due to the coseismic stress transfer, but the change attenuated rapidly with distance.https://www.mdpi.com/2073-4433/13/2/154Jiashi Ms = 6.4 earthquakeground temperaturefluidcoseismic geothermal changetemperature transfer |
| spellingShingle | Donghui Jia Binbin Zhao Huaizhong Yu Yuchuan Ma Yuan Xiang Wei Yan Multi Field Coupled Coseismic Changes of the Jiashi Ms = 6.4 Earthquake of 19 January 2020, Based on Ground Temperature Observation Atmosphere Jiashi Ms = 6.4 earthquake ground temperature fluid coseismic geothermal change temperature transfer |
| title | Multi Field Coupled Coseismic Changes of the Jiashi Ms = 6.4 Earthquake of 19 January 2020, Based on Ground Temperature Observation |
| title_full | Multi Field Coupled Coseismic Changes of the Jiashi Ms = 6.4 Earthquake of 19 January 2020, Based on Ground Temperature Observation |
| title_fullStr | Multi Field Coupled Coseismic Changes of the Jiashi Ms = 6.4 Earthquake of 19 January 2020, Based on Ground Temperature Observation |
| title_full_unstemmed | Multi Field Coupled Coseismic Changes of the Jiashi Ms = 6.4 Earthquake of 19 January 2020, Based on Ground Temperature Observation |
| title_short | Multi Field Coupled Coseismic Changes of the Jiashi Ms = 6.4 Earthquake of 19 January 2020, Based on Ground Temperature Observation |
| title_sort | multi field coupled coseismic changes of the jiashi ms 6 4 earthquake of 19 january 2020 based on ground temperature observation |
| topic | Jiashi Ms = 6.4 earthquake ground temperature fluid coseismic geothermal change temperature transfer |
| url | https://www.mdpi.com/2073-4433/13/2/154 |
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