Deformation method of tsunami prediction

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Abstract

Based on the analysis of numerous data on variations of deformations of the Earth’s crust obtained using a laser strainmeter, deformation anomalies (deformation jumps) that occur during tsunami generation have been detected. The deformation jumps recorded by the laser strainmeter are caused by bottom movements leading to the formation of a tsunami. According to the data of many registered tsunamigenic earthquakes, the attenuation coefficients of the identified deformation anomalies for four regions of the planet have been calculated.

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About the authors

Grigory I. Dolgikh

V. I. Ilyichev Pacific Oceanological Institute, FEB RAS

Author for correspondence.
Email: dolgikh@poi.dvo.ru
ORCID iD: 0000-0002-2806-3834

Academician of RAS, Doctor of Sciences in Physics and Mathematics, Professor

Russian Federation, Vladivostok

Stanislav G. Dolgikh

V. I. Ilyichev Pacific Oceanological Institute, FEB RAS

Email: sdolgikh@poi.dvo.ru
ORCID iD: 0000-0001-9828-5929

Doctor of Technical Sciences

Russian Federation, Vladivostok

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Supplementary files

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1. JATS XML
2. Fig. 1. Upgraded 52.5-metre laser deformograph. Central interference node with frequency-stabilised HeNe laser on iodine lines (frequency stability 10-11) (left) and underground beamline (right)

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3. Fig. 2. Record of 52.5-metre laser deformograph for December 2004 (a), b - enlarged fragment, c - dynamic spectrogram. The arrow marks the beginning of the earthquake. The abscissa axis shows the world time

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4. Fig. 3. Plots of the 52.5 metre laser deformograph recordings: a - April 2012, b - April 2014, c - September 2018

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5. Fig. 4. Fragments of 52.5-metre laser deformograph recordings: a - February 2010, b - April 2014, c - September 2015

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6. Fig. 5. Fragments of the 52.5 metre laser deformograph recordings: a - October 2012, b - January 2013, c - September 2017

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7. Fig. 6. Record fragment of the 52.5 m laser deformograph: a - 15 April 2016, b - 13 February 2021

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