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Tectonic deformations in the volcanic belt of Kurilo-Kamchatsky arc before earthquakes with М∼7,0 in zone subduction
- Authors: Ivshin V.M.
- Issue: No 2 (2024)
- Pages: 54-61
- Section: Earth and Environment Sciences
- URL: https://archivog.com/0869-7698/article/view/676039
- DOI: https://doi.org/10.31857/S0869769824020053
- EDN: https://elibrary.ru/ldlrve
- ID: 676039
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Abstract
In the article is performed estimate of the value deformations, incipient in the surface rocky massif of volcanic belt of Kurilo-Kamchatsky arc before earthquakes with М ∼ 7,0 in zone subduction.
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About the authors
Vladimir M. Ivshin
Author for correspondence.
Email: vladimir.m.ivshin@gmail.com
pensioner
Russian Federation, ProtvinoReferences
- Sergeev E. M., Golodkovskaja G. A., Ziangirov R. S. i dr. Gruntovedenie. M.: Izd-vo MGU; 1973. 386 s. (In Russ.).
- Ivshin V. M. Skvazhinnyj naklonomer NIV-1. Vulkanologija i Sejsmologija. 1993;(5):105–112. (In Russ.).
- Ivshin V. M. Rezul‘taty geomehanicheskih issledovanij na Kamchatke. Vestnik FEB RAS. 2021;(1):22– 37. (In Russ.).
- Timoshenko S. P. Teorija uprugosti. L.-M.: ONTI; 1937. 451 s. (In Russ.).
- Zobin V. M., Gordeev E. I., Levina V. I. i dr. Kamchatskoe zemletrjasenie 2 marta 1992 g. (magnituda MLH = 7,1) v Avachinskom zalive i svjazannye s nim javlenija. Vulkanologija i Sejsmologija. 1996;(6):48–61. (In Russ.).
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Fig. 1. Map-scheme of the geomechanical research area in Kamchatka. 1 - geomechanical sensors created: a - in the valley of Topolovaya r., b - on the cliff of Avacha bay, c - in the mouth of Nalycheva r.; 2 - epicentre of the earthquake in Avacha bay 02.03.1992 with M = 7,1; 3 - geomechanical sensor on Tolsty Mys mountain; 4 - geomechanical sensor on Petrovskaya sopka
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3.
Fig. 2. Time series of angles of deviation of the longitudinal axis of the geomechanical sensor from the plumb line and their linear trends in the directions N-S (a) and W-B (b), characterising the displacement gradient created by the weight of overlying rocks in the Topolovaya River valley
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4.
Fig. 3. Time series of angles of deviation of the longitudinal axis of the geomechanical sensor from the plumb line and their linear trends in the directions N-S (a) and W-B (b), characterising the displacement gradient created by the weight of overlying rocks on the cliff of Avacha Bay
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5.
Fig. 4. Time series of angles of deviation of the longitudinal axis of the geomechanical sensor from the plumb line and their linear trends in the directions N-S (a) and W-B (b), characterising the displacement gradient created by the weight of overlying rocks in the mouth of the Nalychev River
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6.
Fig. 5. Time series of angles of deviation of the longitudinal axis of the geomechanical sensor from the plumb line in the directions N-S (a) and W-E (b), characterising the change of vertical gradient of horizontal displacement on Tolstoy Mys (1) and Petrovskaya Sopka (2). The arrow indicates the moment of the earthquake on 2 March 1992 with M = 7.1
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