AMBIENT SEISMIC NOISE VARIATIONS BEFORE EARTHQUAKES IN THE BAIKAL RIFT SYSTEM
This paper proposes a method to observe the pre-earthquake features based on the variations in ambient noises using local moderate and strong seismic events as an example. Eight earthquakes in the Baikal rift system with energy classes K=10.1–15.9 were associated to a significant decrease in the lev...
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| Format: | Article |
| Language: | English |
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Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust
2022-06-01
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| Series: | Геодинамика и тектонофизика |
| Subjects: | |
| Online Access: | https://www.gt-crust.ru/jour/article/view/1397 |
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| author | S. A. Korol A. V. Sankov A. A. Dobrynina V. A. Sankov |
| author_facet | S. A. Korol A. V. Sankov A. A. Dobrynina V. A. Sankov |
| author_sort | S. A. Korol |
| collection | DOAJ |
| description | This paper proposes a method to observe the pre-earthquake features based on the variations in ambient noises using local moderate and strong seismic events as an example. Eight earthquakes in the Baikal rift system with energy classes K=10.1–15.9 were associated to a significant decrease in the level of ambient noises at epicentral distances from 3 to 81 km a few hours before the shock. The observed decrease in the ambient noise level can be classified as a short-term precursor of the medium consolidation 4–5 hours before the earthquake. |
| format | Article |
| id | doaj-art-77876d1dfdf94e0eb42005cc81325d0c |
| institution | Matheson Library |
| issn | 2078-502X |
| language | English |
| publishDate | 2022-06-01 |
| publisher | Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust |
| record_format | Article |
| series | Геодинамика и тектонофизика |
| spelling | doaj-art-77876d1dfdf94e0eb42005cc81325d0c2025-08-04T14:27:23ZengRussian Academy of Sciences, Siberian Branch, Institute of the Earth's crustГеодинамика и тектонофизика2078-502X2022-06-0113210.5800/GT-2022-13-2s-0632575AMBIENT SEISMIC NOISE VARIATIONS BEFORE EARTHQUAKES IN THE BAIKAL RIFT SYSTEMS. A. Korol0A. V. Sankov1A. A. Dobrynina2V. A. Sankov3Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of SciencesInstitute of the Earth’s Crust, Siberian Branch of the Russian Academy of SciencesInstitute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences; Geological Institute, Siberian Branch of the Russian Academy of SciencesInstitute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences; Irkutsk State UniversityThis paper proposes a method to observe the pre-earthquake features based on the variations in ambient noises using local moderate and strong seismic events as an example. Eight earthquakes in the Baikal rift system with energy classes K=10.1–15.9 were associated to a significant decrease in the level of ambient noises at epicentral distances from 3 to 81 km a few hours before the shock. The observed decrease in the ambient noise level can be classified as a short-term precursor of the medium consolidation 4–5 hours before the earthquake.https://www.gt-crust.ru/jour/article/view/1397earthquake’s precursorsambient seismic noisebaikal rift systemtime-frequency analysis |
| spellingShingle | S. A. Korol A. V. Sankov A. A. Dobrynina V. A. Sankov AMBIENT SEISMIC NOISE VARIATIONS BEFORE EARTHQUAKES IN THE BAIKAL RIFT SYSTEM Геодинамика и тектонофизика earthquake’s precursors ambient seismic noise baikal rift system time-frequency analysis |
| title | AMBIENT SEISMIC NOISE VARIATIONS BEFORE EARTHQUAKES IN THE BAIKAL RIFT SYSTEM |
| title_full | AMBIENT SEISMIC NOISE VARIATIONS BEFORE EARTHQUAKES IN THE BAIKAL RIFT SYSTEM |
| title_fullStr | AMBIENT SEISMIC NOISE VARIATIONS BEFORE EARTHQUAKES IN THE BAIKAL RIFT SYSTEM |
| title_full_unstemmed | AMBIENT SEISMIC NOISE VARIATIONS BEFORE EARTHQUAKES IN THE BAIKAL RIFT SYSTEM |
| title_short | AMBIENT SEISMIC NOISE VARIATIONS BEFORE EARTHQUAKES IN THE BAIKAL RIFT SYSTEM |
| title_sort | ambient seismic noise variations before earthquakes in the baikal rift system |
| topic | earthquake’s precursors ambient seismic noise baikal rift system time-frequency analysis |
| url | https://www.gt-crust.ru/jour/article/view/1397 |
| work_keys_str_mv | AT sakorol ambientseismicnoisevariationsbeforeearthquakesinthebaikalriftsystem AT avsankov ambientseismicnoisevariationsbeforeearthquakesinthebaikalriftsystem AT aadobrynina ambientseismicnoisevariationsbeforeearthquakesinthebaikalriftsystem AT vasankov ambientseismicnoisevariationsbeforeearthquakesinthebaikalriftsystem |