Deformation Anomalies Accompanying Tsunami Origination
Basing on the analysis of data on variations of deformations in the Earth’s crust, which were obtained with a laser strainmeter, we found that deformation anomalies (deformation jumps) occurred at the time of tsunami generation. Deformation jumps recorded by the laser strainmeter were apparently cau...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/9/10/1144 |
| _version_ | 1797514200388468736 |
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| author | Grigory Dolgikh Stanislav Dolgikh |
| author_facet | Grigory Dolgikh Stanislav Dolgikh |
| author_sort | Grigory Dolgikh |
| collection | DOAJ |
| description | Basing on the analysis of data on variations of deformations in the Earth’s crust, which were obtained with a laser strainmeter, we found that deformation anomalies (deformation jumps) occurred at the time of tsunami generation. Deformation jumps recorded by the laser strainmeter were apparently caused by bottom displacements, leading to tsunami formation. According to the data for the many recorded tsunamigenic earthquakes, we calculated the damping ratios of the identified deformation anomalies for three regions of the planet. We proved the obtained experimental results by applying the sine-Gordon equation, the one-kink and two-kink solutions of which allowed us to describe the observed deformation anomalies. We also formulated the direction of a theoretical deformation jump occurrence—a kink (bore)—during an underwater landslide causing a tsunami. |
| first_indexed | 2024-03-10T06:28:16Z |
| format | Article |
| id | doaj.art-c00819ffc9474038b03b821c6d433f4f |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T06:28:16Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-c00819ffc9474038b03b821c6d433f4f2023-11-22T18:46:16ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-10-01910114410.3390/jmse9101144Deformation Anomalies Accompanying Tsunami OriginationGrigory Dolgikh0Stanislav Dolgikh1V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch Russian Academy of Sciences, 690041 Vladivostok, RussiaV.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch Russian Academy of Sciences, 690041 Vladivostok, RussiaBasing on the analysis of data on variations of deformations in the Earth’s crust, which were obtained with a laser strainmeter, we found that deformation anomalies (deformation jumps) occurred at the time of tsunami generation. Deformation jumps recorded by the laser strainmeter were apparently caused by bottom displacements, leading to tsunami formation. According to the data for the many recorded tsunamigenic earthquakes, we calculated the damping ratios of the identified deformation anomalies for three regions of the planet. We proved the obtained experimental results by applying the sine-Gordon equation, the one-kink and two-kink solutions of which allowed us to describe the observed deformation anomalies. We also formulated the direction of a theoretical deformation jump occurrence—a kink (bore)—during an underwater landslide causing a tsunami.https://www.mdpi.com/2077-1312/9/10/1144earthquaketsunamilaser strainmeterdeformation jumpsine-Gordon equationkink |
| spellingShingle | Grigory Dolgikh Stanislav Dolgikh Deformation Anomalies Accompanying Tsunami Origination Journal of Marine Science and Engineering earthquake tsunami laser strainmeter deformation jump sine-Gordon equation kink |
| title | Deformation Anomalies Accompanying Tsunami Origination |
| title_full | Deformation Anomalies Accompanying Tsunami Origination |
| title_fullStr | Deformation Anomalies Accompanying Tsunami Origination |
| title_full_unstemmed | Deformation Anomalies Accompanying Tsunami Origination |
| title_short | Deformation Anomalies Accompanying Tsunami Origination |
| title_sort | deformation anomalies accompanying tsunami origination |
| topic | earthquake tsunami laser strainmeter deformation jump sine-Gordon equation kink |
| url | https://www.mdpi.com/2077-1312/9/10/1144 |
| work_keys_str_mv | AT grigorydolgikh deformationanomaliesaccompanyingtsunamiorigination AT stanislavdolgikh deformationanomaliesaccompanyingtsunamiorigination |