ICCGIS 2022

A group of authors of IEPT RAS presented the Institute’s WEB-GIS current state which unites desktop geoinformation projects of different scientific groups and gives users a possibility to view the projects data. Content of two projects was described: prediction of earthquakes on a global scale and two regional projects (Black and Caspian Seas, Italy) on the seismogenic nodes and lineaments.

The materials of the speech can be found here. Conference website. Proceeding of the conference.

Approaches to Solving the Maximum Possible Earthquake Magnitude (Mmax) Problem

The problem of estimation the maximum possible magnitude of regional earthquakes Mmax is examined. Statistical and paleoseismological approaches to this problem are combined. Within the framework of the statistical approach, the method of statistical moments, the Bayes method, the method based on the theory of extreme values ​​(EVT) are examined and compared.

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A TEMPERATURE PROBLEM FOR A SQUARE: AN EXACT SOLUTION

Determining the thermal stresses in elastic plates is a necessary component in strength calculations of elements of thin-walled structures, for example, the skin of aircraft and rockets in aerodynamic heating conditions.

Knowledge of the magnitude and nature of the action of thermal stresses is necessary for a comprehensive analysis of the strength of the structure. Thermal stresses in themselves and in combination with mechanical stresses from external forces can cause cracks and destruction of structures made of materials with increased fragility.

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BORIS GRIGORYEVICH BUKCHIN PASSED AWAY

We are deeply saddened to announce that on April 15, 2022, Boris Grigoryevich Bukchin passed away.

He was a famous seismologist, a wonderful, kind, intimate person.

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The Variability of Earthquake Parameters with the Depth: Evidences of Difference of Mechanisms of Generation of the Shallow, Intermediate-Depth, and the Deep Earthquakes

At the high pressures and temperatures typical of the Earth’s interior, the brittle failure in accordance with the generally accepted Reid elastic rebound model cannot occur at depths greater than a few dozen kilometers. Nevertheless, earthquakes do occur at depths to about 700 km depth and some more.

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