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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Sunday 22 September 2019

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Weakness areas conducive to the intrusion of dykes by reference to the migration of the epicenters of swarms of long period earthquakes around the volcanoes Nyiragongo and Nyamulagira for the period 2002-2011


Volume 24, Issue 1, June 2016, Pages 112–123

 Weakness areas conducive to the intrusion of dykes by reference to the migration
of the epicenters of swarms of long period earthquakes around the volcanoes Nyiragongo and Nyamulagira for the period 2002-2011

Didier BIRIMWIRAGI NAMOGO, Georges MAVONGA, Josué SUBIRA, Albert KYAMBIKWA, Modeste ETOY, Delphin ASSANI, Rigobert RUSANGIZA, Antoine FIKIRI, Jampy WILONJA, Francois LUKAYA, Moise CINYABUGUMA, Pascal MATAMBA, Désiré KASONGO, King BIRINDWA, Gloire SAMBO, and Ephrem KAMATE

Original language: English

Received 26 February 2016

Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


We analyzed the seismic data collected in the database of the Goma Volcano Observatory, for the period from 2002 to 2011. Based on the location of the various swarms of Long Period Earthquakes, migration of epicenters were assessed in order to estimate the weakness areas which are the ways for dyke intrusions at Nyiragongo and Nyamulagira volcanoes, the two very active volcanoes the Western Branch of the East African Rift in the Democratic Republic of the Congo. We found that the intrusions of dykes occur in two main perpendicular weak axes: the NE-SW axis generated by tensional forces from the East African Rift actions, and the NW-SE axis generated by divergent forces from the actions of magmas of both volcanoes.

Author Keywords: Nyiragongo Volcano, Nyamulagira Volcano, dyke intrusion, epicenter’s migrations, NW-SE axis NE- SW axis.


How to Cite this Article


Didier BIRIMWIRAGI NAMOGO, Georges MAVONGA, Josué SUBIRA, Albert KYAMBIKWA, Modeste ETOY, Delphin ASSANI, Rigobert RUSANGIZA, Antoine FIKIRI, Jampy WILONJA, Francois LUKAYA, Moise CINYABUGUMA, Pascal MATAMBA, Désiré KASONGO, King BIRINDWA, Gloire SAMBO, and Ephrem KAMATE, “Weakness areas conducive to the intrusion of dykes by reference to the migration of the epicenters of swarms of long period earthquakes around the volcanoes Nyiragongo and Nyamulagira for the period 2002-2011,” International Journal of Innovation and Scientific Research, vol. 24, no. 1, pp. 112–123, June 2016.