Tectonic plate under a localized boundary stress: fitting of a zero-range solvable model

TL;DR

This paper introduces a method to model tectonic plates under boundary stress using a zero-range solvable model, aiming to predict earthquake risks by analyzing Earth's oscillations.

Contribution

It proposes a novel fitting approach for a zero-range model based on observed Earth's oscillations to localize stress zones and assess earthquake risk.

Findings

Method enables localization of stressed zones.

Potential to estimate earthquake risk.

Model fits observed oscillation data.

Abstract

We suggest a method of fitting of a zero-range model of a tectonic plate under a boundary stress on the basis of comparison of the theoretical formulae for the corresponding eigenfunctions/eigenvalues with the results extraction under monitoring, in the remote zone, of non-random (regular) oscillations of the Earth with periods 0.2-6 hours, on the background seismic process, in case of low seismic activity. Observations of changes of the characteristics of the oscillations (frequency, amplitude and polarization) in course of time, together with the theoretical analysis of the fitted model, would enable us to localize the stressed zone on the boundary of the plate and estimate the risk of a powerful earthquake at the zone.