https://phys.org/news/2024-06-satellite-reveal-electromagnetic-anomalies-days.html Phys.org Topics * Week's top * Latest news * Unread news * Subscribe [ ] Science X Account [ ] [ ] [*] Remember me Sign In Click here to sign in with or Forget Password? Not a member? Sign up Learn more * Nanotechnology * Physics * Earth * Astronomy & Space * Chemistry * Biology * Other Sciences * Medical Xpress Medicine * Tech Xplore Technology [INS::INS] * * share this! * 622 * Twit * Share * Email 1. Home 2. Earth 3. Earth Sciences * * * --------------------------------------------------------------------- June 12, 2024 Editors' notes This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: fact-checked trusted source proofread Satellite data reveal anomalies up to 19 days before 2023 Turkey earthquake by SciencePOD Satellite data reveals anomalies up to 19 days before 2023 Turkey earthquake The intensity map and geographic location of the 2023 Turkey earthquake. A black star indicates the earthquake epicenter (https://earthquake.usgs.gov/earthquakes). Credit: Journal of Applied Geodesy (2024). DOI: 10.1515/jag-2024-0024 Earthquakes may betray their impending presence much earlier than previously thought through a variety of anomalies present in the ground, atmosphere and ionosphere that can be detected using satellites, a recent study in the Journal of Applied Geodesy suggests. Developing early warning systems for earthquakes could be very helpful in preventing death and destruction. One such proposed technique involves using satellites to monitor a variety of physical and chemical parameters within the ground, atmosphere and the layer of charged particles that exists above it, called the ionosphere. Such anomalies are known as earthquake precursors, and although researchers are aware of them, it has been difficult to definitively identify a pattern of so-called red flags that could indicate an impending earthquake. This is because of the complexity of precursor interactions and their variability in different earthquakes and geographical regions. However, with every earthquake that researchers analyze using increasingly sophisticated satellite technology, these patterns are slowly emerging. Professor Mehdi Akhoondzadeh of the University of Tehran assessed a variety of satellite data from the run up to and aftermath of two earthquakes that occurred on 6 February 2023 near the border between Turkey and Syria. This included data from the Chinese seismo-electromagnetic satellite, CSES-01, and the Swarm satellite mission which consists of three satellites from the European Space Agency. Strikingly, he observed anomalies in land surface temperature from the earthquake region as early as 12-19 days before the earthquakes and anomalies in atmospheric parameters between 5-10 days before the earthquakes. These included measurements of water vapor, methane levels, ozone and carbon monoxide. [INS::INS] When Professor Akhoondzadeh investigated anomalies in the ionosphere, including measurements of parameters such as electron density and electron temperature, he found clear and striking anomalies at 1-5 days before the earthquakes. The times that the anomalies became apparent in the ground, atmosphere and ionosphere respectively suggest that these signals originated in the ground and eventually became apparent at higher levels in the atmosphere and finally the ionosphere. Studying these phenomena could pave the way for earthquake early warning systems, but researchers will need to assess other earthquakes in the future to more fully understand these patterns. "Using CSES-01 satellite data, anomalies in the ionosphere prior to the earthquakes in Turkey on 6 February 2023 have been detected for the first time," said Professor Akhoondzadeh. "By studying anomalies associated with multiple earthquake precursors, the uncertainty in detecting real anomalies decreases and this can be effective in creating earthquake warning systems with a low number of false warnings." More information: Mehdi Akhoondzadeh, Analyses of data from the first Chinese seismo electromagnetic satellite (CSES-01) together with other earthquake precursors associated with the Turkey earthquakes (February 6, 2023), Journal of Applied Geodesy (2024). DOI: 10.1515/ jag-2024-0024 Provided by SciencePOD Citation: Satellite data reveal anomalies up to 19 days before 2023 Turkey earthquake (2024, June 12) retrieved 14 June 2024 from https:/ /phys.org/news/ 2024-06-satellite-reveal-electromagnetic-anomalies-days.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. 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