Anomalous changes of vertical geomagnetic field in Kamchatka

Secular variations of the vertical geomagnetic field at Paratunka (Kamchatka), Kakioka (Honshu), Mamambetsu (Hokkaido) and Patrony (Irkutsk) are considered from 1968 to 2014. Comparative analysis of secular variations showed that from 1968 to 2001, similar variations with the intensity of first hund...

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Main Authors: Moroz Yuriy, Smirnov Sergey, Nazarova Zoya
Format: Article
Language:English
Published: EDP Sciences 2016-01-01
Series:E3S Web of Conferences
Online Access:http://dx.doi.org/10.1051/e3sconf/20161100022
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author Moroz Yuriy
Smirnov Sergey
Nazarova Zoya
author_facet Moroz Yuriy
Smirnov Sergey
Nazarova Zoya
author_sort Moroz Yuriy
collection DOAJ
description Secular variations of the vertical geomagnetic field at Paratunka (Kamchatka), Kakioka (Honshu), Mamambetsu (Hokkaido) and Patrony (Irkutsk) are considered from 1968 to 2014. Comparative analysis of secular variations showed that from 1968 to 2001, similar variations with the intensity of first hundreds on nT are obvious at four observatories. For the following period from 2001 to 2014, the secular variation at Paratunka observatory differs from other observatories. This disagreement of the secular geomagnetic variation at Paratunka observatory is timed to the increase of seismicity at the depth of 400-700 km in South Kamchatka region. It is suggested that in the result of increase of the seismicity in the region of transition from the upper to lower mantle, physical and chemical processes became more active. That caused formation of a large geo-electrical inhomogeneity which affected the behavior of the vertical component of geomagnetic field.
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spelling doaj.art-681d569d7342499fba5dedbea565db012022-12-21T18:13:20ZengEDP SciencesE3S Web of Conferences2267-12422016-01-01110002210.1051/e3sconf/20161100022e3sconf_ikir2016_00022Anomalous changes of vertical geomagnetic field in KamchatkaMoroz Yuriy0Smirnov Sergey1Nazarova Zoya2Institute of Volcanology and seismology, Far Eastern Branch, Russian Academy of SciencesInstitute of Cosmophysical Research and Radio Wave Propagation of the Far Eastern Branch of Russian Academy of ScienceKamchatka Branch of the Geophysical Service of the Russian Academy of SciencesSecular variations of the vertical geomagnetic field at Paratunka (Kamchatka), Kakioka (Honshu), Mamambetsu (Hokkaido) and Patrony (Irkutsk) are considered from 1968 to 2014. Comparative analysis of secular variations showed that from 1968 to 2001, similar variations with the intensity of first hundreds on nT are obvious at four observatories. For the following period from 2001 to 2014, the secular variation at Paratunka observatory differs from other observatories. This disagreement of the secular geomagnetic variation at Paratunka observatory is timed to the increase of seismicity at the depth of 400-700 km in South Kamchatka region. It is suggested that in the result of increase of the seismicity in the region of transition from the upper to lower mantle, physical and chemical processes became more active. That caused formation of a large geo-electrical inhomogeneity which affected the behavior of the vertical component of geomagnetic field.http://dx.doi.org/10.1051/e3sconf/20161100022
spellingShingle Moroz Yuriy
Smirnov Sergey
Nazarova Zoya
Anomalous changes of vertical geomagnetic field in Kamchatka
E3S Web of Conferences
title Anomalous changes of vertical geomagnetic field in Kamchatka
title_full Anomalous changes of vertical geomagnetic field in Kamchatka
title_fullStr Anomalous changes of vertical geomagnetic field in Kamchatka
title_full_unstemmed Anomalous changes of vertical geomagnetic field in Kamchatka
title_short Anomalous changes of vertical geomagnetic field in Kamchatka
title_sort anomalous changes of vertical geomagnetic field in kamchatka
url http://dx.doi.org/10.1051/e3sconf/20161100022
work_keys_str_mv AT morozyuriy anomalouschangesofverticalgeomagneticfieldinkamchatka
AT smirnovsergey anomalouschangesofverticalgeomagneticfieldinkamchatka
AT nazarovazoya anomalouschangesofverticalgeomagneticfieldinkamchatka