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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Wednesday 12 May 2021

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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 NAMOGO1, Georges MAVONGA2, Josué SUBIRA3, Albert KYAMBIKWA4, Modeste ETOY5, Delphin ASSANI6, Rigobert RUSANGIZA7, Antoine FIKIRI8, Jampy WILONJA9, Francois LUKAYA10, Moise CINYABUGUMA11, Pascal MATAMBA12, Désiré KASONGO13, King BIRINDWA14, Gloire SAMBO15, and Ephrem KAMATE16

1 Department of Seismology, Goma Volcano Observatory and Free University of Great Lakes, RD Congo
2 Department of Seismology, Goma Volcano Observatory, RD Congo
3 Department of Seismology, Goma Volcano Observatory, RD Congo
4 Department of Seismology, Goma Volcano Observatory, RD Congo
5 Department of Seismology, Goma Volcano Observatory, RD Congo
6 Department of Seismology, Goma Volcano Observatory, RD Congo
7 Department of Seismology, Goma Volcano Observatory, RD Congo
8 Department of Seismology, Goma Volcano Observatory, RD Congo
9 Department of Seismology, Goma Volcano Observatory, RD Congo
10 Department of Seismology, Goma Volcano Observatory and Department of Geology, University of Goma, RD Congo
11 Department of Seismology, Goma Volcano Observatory, RD Congo
12 Department of Seismology, Goma Volcano Observatory, RD Congo
13 Department of Seismology, Goma Volcano Observatory, RD Congo
14 Department of Geodesy, Goma Volcano Observatory and Free University of Great Lakes, RD Congo
15 Department of Geodesy, Goma Volcano Observatory, RD Congo
16 Department of Geodesy, Goma Volcano Observatory, RD Congo

Original language: English

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.