Deformation Anomalies Accompanying Tsunami Origination
| Autor: | Grigory I. Dolgikh, Stanislav G. Dolgikh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
sine-Gordon equation
underwater landslide Naval architecture. Shipbuilding. Marine engineering VM1-989 Ocean Engineering GC1-1581 Deformation (meteorology) Strainmeter Oceanography Physics::Geophysics Planet Underwater Nonlinear Sciences::Pattern Formation and Solitons Water Science and Technology Civil and Structural Engineering kink laser strainmeter Landslide Crust anti-kink earthquake Jump tsunami deformation jump Geology Seismology |
| Zdroj: | Journal of Marine Science and Engineering Volume 9 Issue 10 Journal of Marine Science and Engineering, Vol 9, Iss 1144, p 1144 (2021) |
| ISSN: | 2077-1312 |
| DOI: | 10.3390/jmse9101144 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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