FIGA - 2025
FIGA 2025 - Fourth Triennial Congress of Federation of Indian Geosciences Association 2025

Summary of Abstract Submission



Abstract Submission No.ABS-3.1-0010
Title of AbstractDetection of VLF Ionospheric Precursors and Early Prediction on 05th July 2025 from India of the July-2025 M8.8 Kamchatka, Russia Earthquake Sequence
AuthorsPRASANNA WAICHAL*
OrganisationWAICHAL RESEARCH
Address8/1409/6, Mathura Nagar, Near Sangli Naka
ICHALKARANJI, Maharashtra, India
Pincode: 416115
E-mail: waichal.research@gmail.com
CountryIndia
PresentationOral
AbstractOn 29th-30th July 2025, the Kamchatka region of Russia experienced a massive M8.8 earthquake. This sequence of earthquakes began on 14th July 2025 with a M6.7 event in Indonesia followed by several M6-M7 quakes in the Northern Pacific region. A VLF Ionospheric Monitoring Station being operated in the state of Maharashtra, in western part of India had detected the early precursors starting overnight on 04th ¿ 05th July 2025 and the author had publically released an earthquake alert numbered 19/2025 on 05th July 2025 at 1330Hrs IST (0800Hrs UTC/GMT) and also some important offices in New Delhi were communicated by email about the possibility of M7++ earthquake/s likely during 15th ¿ 21st July 2025. The first major event of this sequence occurred on 14th July 2025 with an event in Indonesia and the final major event of magnitude M8.8 took place on 29th ¿ 30th July 2025 in the Kamchatka region of Russia. The precursors of Dual-Simultaneous nature were simultaneously detected by two different VLF Ionospheric paths operating on two different frequencies. This paper discusses these precursors and the alert that was released on 05th July 2025 warning for a possible M7++ earthquake more than a week in advance. By looking at the track record of several years of this VLF Ionospheric Monitoring Station in detection and early prediction of many earthquakes of M7+ magnitude, the paper then concludes that the VLF Ionospheric Technique has been proved to be a reliable, consistent and repeatable method in detection of early precursors both for the major earthquakes and volcano eruptions alike.
KeywordsEarthquake Prediction, Volcano Prediction, VLF, Ionosphere, Earthquake Precursors