CLARIFICATION OF THE NATURE OF TYPICAL PRECURSOR ANOMALIES FOR DIFFERENT-DEPTH EARTHQUAKES IN THE KURIL-KAMCHATKA REGION
https://doi.org/10.5800/GT-2025-16-1-0811
EDN: muebpv
Abstract
The task was set on investigation of the possibility of constructing a new algorithm for earthquake prediction based on a set of precursor effects that had been reliably identified from the world data as a result of constructing the generalized vicinity of a strong earthquake from a scaled combination of the data on a large number of foreshock and aftershock areas of individual strong earthquakes. In relation to the Kamchatka-Northern Kurils region, the first-stage solution of this task lies in clarification of the regional character of the averaged precursor effects on the basis of the most complete and homogeneous regional catalogue. There has been a later onset of anomalous changes in the intensity of flow of events and in the slope of the recurrence diagram for intermediate-depth earthquakes. The deep-seated earthquakes show a dominant trend of increased rather than decreased depth of weak events in the vicinity of strong events. The specified features of the averaged precursor behavior will be used as typical patterns to predict different-depth earthquakes in the Kuril-Kamchatka region.
Supporting agencies: The work was carried out as part of the state assignment of the IMGG FEB RAS and with the support of the Russian Science Foundation (project 23-27-00395 "Complex anomalies in the generalized vicinity of a strong earthquake; physics of the process and use for forecasting purposes").
About the Authors
M. V. Rodkin
Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences;
Institute of Marine Geology and Geophysics, Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
84-32 Profsoyuznaya St, Moscow 117997;
1B Nauki St, Yuzhno-Sakhalinsk 693022
M. Yu. Andreeva
Institute of Marine Geology and Geophysics, Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
1B Nauki St, Yuzhno-Sakhalinsk 693022
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Review
For citations:
Rodkin M.V., Andreeva M.Yu. CLARIFICATION OF THE NATURE OF TYPICAL PRECURSOR ANOMALIES FOR DIFFERENT-DEPTH EARTHQUAKES IN THE KURIL-KAMCHATKA REGION. Geodynamics & Tectonophysics. 2025;16(1):0811. (In Russ.) https://doi.org/10.5800/GT-2025-16-1-0811. EDN: muebpv
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