Diurnal changes of earthquake activity and geomagnetic Sq-variations
Statistic analyses demonstrate that the probability of earthquake occurrence in many earthquake regions strongly depends on the time of day, that is on Local Time (e.g. Conrad, 1909, 1932; Shimshoni, 1971; Duma, 1997; Duma and Vilardo, 1998). This also applies to strong earthquake activity. Moreover...
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ftcopernicus:oai:publications.copernicus.org:nhess37030 2023-05-15T15:38:54+02:00 Diurnal changes of earthquake activity and geomagnetic Sq-variations Duma, G. Ruzhin, Y. 2018-09-27 application/pdf https://doi.org/10.5194/nhess-3-171-2003 https://nhess.copernicus.org/articles/3/171/2003/ eng eng doi:10.5194/nhess-3-171-2003 https://nhess.copernicus.org/articles/3/171/2003/ eISSN: 1684-9981 Text 2018 ftcopernicus https://doi.org/10.5194/nhess-3-171-2003 2020-07-20T16:27:41Z Statistic analyses demonstrate that the probability of earthquake occurrence in many earthquake regions strongly depends on the time of day, that is on Local Time (e.g. Conrad, 1909, 1932; Shimshoni, 1971; Duma, 1997; Duma and Vilardo, 1998). This also applies to strong earthquake activity. Moreover, recent observations reveal an involvement of the regular diurnal variations of the Earth’s magnetic field, commonly known as Sq-variations, in this geodynamic process of changing earthquake activity with the time of day (Duma, 1996, 1999). In the article it is attempted to quantify the forces which result from the interaction between the induced Sq-variation currents in the Earth’s lithosphere and the regional Earth’s magnetic field, in order to assess the influence on the tectonic stress field and on seismic activity. A reliable model is obtained, which indicates a high energy involved in this process. The effect of Sq-induction is compared with the results of the large scale electromagnetic experiment "Khibiny" (Velikhov, 1989), where a giant artificial current loop was activated in the Barents Sea. Text Barents Sea Copernicus Publications: E-Journals Barents Sea Khibiny ENVELOPE(33.210,33.210,67.679,67.679) Natural Hazards and Earth System Sciences 3 3/4 171 177 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
Statistic analyses demonstrate that the probability of earthquake occurrence in many earthquake regions strongly depends on the time of day, that is on Local Time (e.g. Conrad, 1909, 1932; Shimshoni, 1971; Duma, 1997; Duma and Vilardo, 1998). This also applies to strong earthquake activity. Moreover, recent observations reveal an involvement of the regular diurnal variations of the Earth’s magnetic field, commonly known as Sq-variations, in this geodynamic process of changing earthquake activity with the time of day (Duma, 1996, 1999). In the article it is attempted to quantify the forces which result from the interaction between the induced Sq-variation currents in the Earth’s lithosphere and the regional Earth’s magnetic field, in order to assess the influence on the tectonic stress field and on seismic activity. A reliable model is obtained, which indicates a high energy involved in this process. The effect of Sq-induction is compared with the results of the large scale electromagnetic experiment "Khibiny" (Velikhov, 1989), where a giant artificial current loop was activated in the Barents Sea. |
format |
Text |
author |
Duma, G. Ruzhin, Y. |
spellingShingle |
Duma, G. Ruzhin, Y. Diurnal changes of earthquake activity and geomagnetic Sq-variations |
author_facet |
Duma, G. Ruzhin, Y. |
author_sort |
Duma, G. |
title |
Diurnal changes of earthquake activity and geomagnetic Sq-variations |
title_short |
Diurnal changes of earthquake activity and geomagnetic Sq-variations |
title_full |
Diurnal changes of earthquake activity and geomagnetic Sq-variations |
title_fullStr |
Diurnal changes of earthquake activity and geomagnetic Sq-variations |
title_full_unstemmed |
Diurnal changes of earthquake activity and geomagnetic Sq-variations |
title_sort |
diurnal changes of earthquake activity and geomagnetic sq-variations |
publishDate |
2018 |
url |
https://doi.org/10.5194/nhess-3-171-2003 https://nhess.copernicus.org/articles/3/171/2003/ |
long_lat |
ENVELOPE(33.210,33.210,67.679,67.679) |
geographic |
Barents Sea Khibiny |
geographic_facet |
Barents Sea Khibiny |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
eISSN: 1684-9981 |
op_relation |
doi:10.5194/nhess-3-171-2003 https://nhess.copernicus.org/articles/3/171/2003/ |
op_doi |
https://doi.org/10.5194/nhess-3-171-2003 |
container_title |
Natural Hazards and Earth System Sciences |
container_volume |
3 |
container_issue |
3/4 |
container_start_page |
171 |
op_container_end_page |
177 |
_version_ |
1766370305159200768 |