The Coseismic Ionospheric Disturbance During 2023 Turkey Double Earthquake Monitored by GNSS Observations

The global navigation satellite system observations can invert the characteristics of global ionospheric changes, which help understand the coupled physical processes in the atmosphere caused by earthquakes. On 6 February 2023, Turkey experienced two strong earthquakes: an Mw7.8 event at UTC 01:17:3...

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Main Authors: Yongxin Chen, Keke Wang, Wei Li, Xiaoxia Liu
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Subjects:
Online Access:https://ieeexplore.ieee.org/document/11086483/
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author Yongxin Chen
Keke Wang
Wei Li
Xiaoxia Liu
author_facet Yongxin Chen
Keke Wang
Wei Li
Xiaoxia Liu
author_sort Yongxin Chen
collection DOAJ
description The global navigation satellite system observations can invert the characteristics of global ionospheric changes, which help understand the coupled physical processes in the atmosphere caused by earthquakes. On 6 February 2023, Turkey experienced two strong earthquakes: an Mw7.8 event at UTC 01:17:34 and an Mw7.5 event at UTC 10:24:50. The propagation direction of ionospheric disturbances aligns with the rupture zones, which are bidirectional northeast–southwest ruptures for the first event and east–west ruptures for the second one. According to the results of Turkey stations, it is found that the coseismic ionospheric disturbances (CIDs) of the first earthquake are primarily driven by acoustic waves, but there are also Rayleigh waves and mixed waves’ components. Due to the influence of the first earthquake and aftershocks, the CIDs of the second earthquake are dominated by acoustic waves and Rayleigh waves. Notably, the Mw7.5 earthquake resulted in stronger ionospheric disturbance amplitudes than the Mw7.8 event, while the Mw7.8 event affected a larger spatial disturbance area. Meanwhile, it is confirmed that significant CIDs will be detected when the strike-slip earthquake magnitude is large enough.
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spelling doaj-art-a2d56091b7fa47d19afd6646ae04fff42025-08-20T03:41:11ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing1939-14042151-15352025-01-0118188301884210.1109/JSTARS.2025.359103611086483The Coseismic Ionospheric Disturbance During 2023 Turkey Double Earthquake Monitored by GNSS ObservationsYongxin Chen0https://orcid.org/0009-0005-0208-939XKeke Wang1https://orcid.org/0009-0001-8556-4133Wei Li2https://orcid.org/0000-0001-8126-7388Xiaoxia Liu3School of Geography and Information Engineering, China University of Geosciences, Wuhan, ChinaCCTEG Shenyang Engineering Company, Shenyang, ChinaSchool of Geography and Information Engineering, China University of Geosciences, Wuhan, ChinaInstitute of Earthquake Forecasting, China Earthquake Administration, Beijing, ChinaThe global navigation satellite system observations can invert the characteristics of global ionospheric changes, which help understand the coupled physical processes in the atmosphere caused by earthquakes. On 6 February 2023, Turkey experienced two strong earthquakes: an Mw7.8 event at UTC 01:17:34 and an Mw7.5 event at UTC 10:24:50. The propagation direction of ionospheric disturbances aligns with the rupture zones, which are bidirectional northeast–southwest ruptures for the first event and east–west ruptures for the second one. According to the results of Turkey stations, it is found that the coseismic ionospheric disturbances (CIDs) of the first earthquake are primarily driven by acoustic waves, but there are also Rayleigh waves and mixed waves’ components. Due to the influence of the first earthquake and aftershocks, the CIDs of the second earthquake are dominated by acoustic waves and Rayleigh waves. Notably, the Mw7.5 earthquake resulted in stronger ionospheric disturbance amplitudes than the Mw7.8 event, while the Mw7.8 event affected a larger spatial disturbance area. Meanwhile, it is confirmed that significant CIDs will be detected when the strike-slip earthquake magnitude is large enough.https://ieeexplore.ieee.org/document/11086483/Coseismic ionospheric disturbances (CIDs)global navigation satellite system (GNSS)total electron content (TEC)Turkey double earthquakes
spellingShingle Yongxin Chen
Keke Wang
Wei Li
Xiaoxia Liu
The Coseismic Ionospheric Disturbance During 2023 Turkey Double Earthquake Monitored by GNSS Observations
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Coseismic ionospheric disturbances (CIDs)
global navigation satellite system (GNSS)
total electron content (TEC)
Turkey double earthquakes
title The Coseismic Ionospheric Disturbance During 2023 Turkey Double Earthquake Monitored by GNSS Observations
title_full The Coseismic Ionospheric Disturbance During 2023 Turkey Double Earthquake Monitored by GNSS Observations
title_fullStr The Coseismic Ionospheric Disturbance During 2023 Turkey Double Earthquake Monitored by GNSS Observations
title_full_unstemmed The Coseismic Ionospheric Disturbance During 2023 Turkey Double Earthquake Monitored by GNSS Observations
title_short The Coseismic Ionospheric Disturbance During 2023 Turkey Double Earthquake Monitored by GNSS Observations
title_sort coseismic ionospheric disturbance during 2023 turkey double earthquake monitored by gnss observations
topic Coseismic ionospheric disturbances (CIDs)
global navigation satellite system (GNSS)
total electron content (TEC)
Turkey double earthquakes
url https://ieeexplore.ieee.org/document/11086483/
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