The frequency of electromagnetic waves generated by microcracks and its seismic significance

The frequency of electromagnetic waves generated by microcracks and its seismic significance | 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 Article The frequency of electromagnetic waves generated by microcracks and its seismic significance XiaoHui Du, Song Fu, Xiang Xu, YuDi Pan, Chen Zhou, XueMin Zhang, and 7 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5933618/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Electromagnetic precursor anomalies are an important indicator for earthquake prediction, with numerous observations, simulations, and theoretical studies available. However, the generation process of electromagnetic waves, particularly their frequency characteristics, before an earthquake has not been thoroughly studied. This issue is crucial in determining whether the earthquake electromagnetic precursor signal can penetrate the stratum, significantly impacting the theoretical research on earthquake prediction. This paper explores the frequency of electromagnetic waves generated in the seismogenic zone before an earthquake through elastic mechanics and microcracks. Simulation results indicate that the lowest frequency of electromagnetic waves is 1341 Hz, sufficient for propagation from the seismic source zone to the surface. The simulated abnormal current near the seismic source zone is about 106 A, consistent with observations. While our work is just a starting point, this study offers theoretical support for the generation and propagation of earthquake electromagnetic precursor signals. Earth and environmental sciences/Natural hazards Earth and environmental sciences/Solid earth sciences/Geophysics Earth and environmental sciences/Solid earth sciences/Seismology Earth and environmental sciences/Solid earth sciences/Geomagnetism Seismic electromagnetic wave microcrack Earthquake Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-5933618","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":411536675,"identity":"31c974c8-a5f6-4123-9d01-fd9d119045b5","order_by":0,"name":"XiaoHui 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