Seismoacoustic observations using molecular-electronic hydrophones on Sakhalin and the South Kuril Islands (Kunashir Island)
The article presents the main characteristics and studies spectral and recording capabilities of experimental samples of three types of molecular-electronic hydrophones with different sizes of electrochemical converting cells, which were installed in the central part of the south of Sakhalin Island...
Published in: | Geosystems of Transition Zones |
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Format: | Article in Journal/Newspaper |
Language: | English Russian |
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Дальневосточного отделения Российской академии наук, Южно-Сахалинск, Федеральное государственное бюджетное учреждение науки Институт морской геологии и геофизики
2020
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Online Access: | https://doi.org/10.30730/gtrz.2020.4.4.486-499 https://doaj.org/article/7dcafb47223b4d618102e1137ec5cd54 |
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ftdoajarticles:oai:doaj.org/article:7dcafb47223b4d618102e1137ec5cd54 2023-05-15T18:08:50+02:00 Seismoacoustic observations using molecular-electronic hydrophones on Sakhalin and the South Kuril Islands (Kunashir Island) Dmitry V. Kostylev Natalya V. Boginskaya 2020-12-01T00:00:00Z https://doi.org/10.30730/gtrz.2020.4.4.486-499 https://doaj.org/article/7dcafb47223b4d618102e1137ec5cd54 EN RU eng rus Дальневосточного отделения Российской академии наук, Южно-Сахалинск, Федеральное государственное бюджетное учреждение науки Институт морской геологии и геофизики http://journal.imgg.ru/web/full/f2020-4-6.pdf https://doaj.org/toc/2541-8912 https://doaj.org/toc/2713-2161 https://doi.org/10.30730/gtrz.2020.4.4.486-499 2541-8912 2713-2161 https://doaj.org/article/7dcafb47223b4d618102e1137ec5cd54 Геосистемы переходных зон, Vol 4, Iss 4, Pp 486-499 (2020) seismoacoustic observations molecular-electronic hydrophone spectral density seismic events low-frequency anticipatory signal Dynamic and structural geology QE500-639.5 Stratigraphy QE640-699 Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 Petrology QE420-499 article 2020 ftdoajarticles https://doi.org/10.30730/gtrz.2020.4.4.486-499 2022-12-31T05:11:20Z The article presents the main characteristics and studies spectral and recording capabilities of experimental samples of three types of molecular-electronic hydrophones with different sizes of electrochemical converting cells, which were installed in the central part of the south of Sakhalin Island and on Kunashir Island (southern part of the Kuril ridge) at the end of 2018. A hydrophone on a new technological basis (with an increased sensor sensitivity relative to previously conducted studies) was approved on Kunashir Island. Equipment of this type was used for observations on the territory of the Sakhalin region for the first time. As a result of continuous seismoacoustic observations on Kunashir Island, in seven cases out of 35 studied (from May 1, 2019 to February 29, 2020) earthquakes, a low-frequency anticipatory signal (LFAS) was detected, and all seven events had a depth of hypocenter of more than 80 km. In the area of the Central Sakhalin fault, in addition to the possibility of registering the LFAS, spectral features in the recording of waveforms were studied for different conditions of instrument installation. It is shown that the influence of such atmospheric factor as wind load significantly affects hydrophones located in a shallow water body and a shallow open borehole. However, molecular-electronic hydrophones have demonstrated the ability to fully record seismic events regardless of the installation conditions of the equipment. Article in Journal/Newspaper Sakhalin Directory of Open Access Journals: DOAJ Articles Geosystems of Transition Zones 4 4 486 499 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Russian |
topic |
seismoacoustic observations molecular-electronic hydrophone spectral density seismic events low-frequency anticipatory signal Dynamic and structural geology QE500-639.5 Stratigraphy QE640-699 Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 Petrology QE420-499 |
spellingShingle |
seismoacoustic observations molecular-electronic hydrophone spectral density seismic events low-frequency anticipatory signal Dynamic and structural geology QE500-639.5 Stratigraphy QE640-699 Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 Petrology QE420-499 Dmitry V. Kostylev Natalya V. Boginskaya Seismoacoustic observations using molecular-electronic hydrophones on Sakhalin and the South Kuril Islands (Kunashir Island) |
topic_facet |
seismoacoustic observations molecular-electronic hydrophone spectral density seismic events low-frequency anticipatory signal Dynamic and structural geology QE500-639.5 Stratigraphy QE640-699 Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 Petrology QE420-499 |
description |
The article presents the main characteristics and studies spectral and recording capabilities of experimental samples of three types of molecular-electronic hydrophones with different sizes of electrochemical converting cells, which were installed in the central part of the south of Sakhalin Island and on Kunashir Island (southern part of the Kuril ridge) at the end of 2018. A hydrophone on a new technological basis (with an increased sensor sensitivity relative to previously conducted studies) was approved on Kunashir Island. Equipment of this type was used for observations on the territory of the Sakhalin region for the first time. As a result of continuous seismoacoustic observations on Kunashir Island, in seven cases out of 35 studied (from May 1, 2019 to February 29, 2020) earthquakes, a low-frequency anticipatory signal (LFAS) was detected, and all seven events had a depth of hypocenter of more than 80 km. In the area of the Central Sakhalin fault, in addition to the possibility of registering the LFAS, spectral features in the recording of waveforms were studied for different conditions of instrument installation. It is shown that the influence of such atmospheric factor as wind load significantly affects hydrophones located in a shallow water body and a shallow open borehole. However, molecular-electronic hydrophones have demonstrated the ability to fully record seismic events regardless of the installation conditions of the equipment. |
format |
Article in Journal/Newspaper |
author |
Dmitry V. Kostylev Natalya V. Boginskaya |
author_facet |
Dmitry V. Kostylev Natalya V. Boginskaya |
author_sort |
Dmitry V. Kostylev |
title |
Seismoacoustic observations using molecular-electronic hydrophones on Sakhalin and the South Kuril Islands (Kunashir Island) |
title_short |
Seismoacoustic observations using molecular-electronic hydrophones on Sakhalin and the South Kuril Islands (Kunashir Island) |
title_full |
Seismoacoustic observations using molecular-electronic hydrophones on Sakhalin and the South Kuril Islands (Kunashir Island) |
title_fullStr |
Seismoacoustic observations using molecular-electronic hydrophones on Sakhalin and the South Kuril Islands (Kunashir Island) |
title_full_unstemmed |
Seismoacoustic observations using molecular-electronic hydrophones on Sakhalin and the South Kuril Islands (Kunashir Island) |
title_sort |
seismoacoustic observations using molecular-electronic hydrophones on sakhalin and the south kuril islands (kunashir island) |
publisher |
Дальневосточного отделения Российской академии наук, Южно-Сахалинск, Федеральное государственное бюджетное учреждение науки Институт морской геологии и геофизики |
publishDate |
2020 |
url |
https://doi.org/10.30730/gtrz.2020.4.4.486-499 https://doaj.org/article/7dcafb47223b4d618102e1137ec5cd54 |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_source |
Геосистемы переходных зон, Vol 4, Iss 4, Pp 486-499 (2020) |
op_relation |
http://journal.imgg.ru/web/full/f2020-4-6.pdf https://doaj.org/toc/2541-8912 https://doaj.org/toc/2713-2161 https://doi.org/10.30730/gtrz.2020.4.4.486-499 2541-8912 2713-2161 https://doaj.org/article/7dcafb47223b4d618102e1137ec5cd54 |
op_doi |
https://doi.org/10.30730/gtrz.2020.4.4.486-499 |
container_title |
Geosystems of Transition Zones |
container_volume |
4 |
container_issue |
4 |
container_start_page |
486 |
op_container_end_page |
499 |
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1766181166541438976 |