Spatio-Temporal Analysis of the Pre-Earthquake Disturbances in the Ionosphere before Ten Earthquakes with Magnitudes Greater than Mw 5.0 | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Spatio-Temporal Analysis of the Pre-Earthquake Disturbances in the Ionosphere before Ten Earthquakes with Magnitudes Greater than Mw 5.0 Secil Karatay, Feza Arikan, Atinc Pirti This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4822511/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 15 Apr, 2025 Read the published version in Environmental Earth Sciences → Version 1 posted 12 You are reading this latest preprint version Abstract This study analyzes the variations in Total Electron Content (TEC) to perform a spatio-temporal evaluation of pre-earthquake disturbances in the ionosphere in order to characterize anomalies occurred before the major earthquakes using Differential Rate Of TEC (DROT) algorithm. By employing the DROT technique, significant TEC oscillations have observed 1–5 days before the earthquakes. The temporal approach showed a higher frequency of oscillations on the day immediately preceding the event. The spatial approach showed clustering around 500 km from the epicenter at most. Finally, the approach depending on the magnitude of the earthquake showed that large-scale ionospheric disturbances occurred before the earthquakes with magnitude greater than Mw 5.6. Pre-Earthquake Disturbance Ionosphere TEC Spatio-Temporal Variation Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 15 Apr, 2025 Read the published version in Environmental Earth Sciences → Version 1 posted Editorial decision: Revision requested 16 Nov, 2024 Reviews received at journal 05 Oct, 2024 Reviews received at journal 24 Sep, 2024 Reviews received at journal 19 Sep, 2024 Reviewers agreed at journal 13 Sep, 2024 Reviewers agreed at journal 11 Sep, 2024 Reviewers agreed at journal 09 Sep, 2024 Reviewers agreed at journal 09 Sep, 2024 Reviewers invited by journal 09 Sep, 2024 Editor assigned by journal 30 Jul, 2024 Submission checks completed at journal 30 Jul, 2024 First submitted to journal 29 Jul, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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