Source parameters of the 2008 Bukavu-Cyangugu earthquake estimated from InSAR and teleseismic data

Geophysical Journal International

Volumn 184, Issue 2, 2011, Pages 934-948

  D'Oreye, Nicolas ^a,b   González, Pablo J ^c   Shuler, Ashley ^d   Oth, Adrien ^b   Bagalwa, Louis ^e   Ekström, Göran ^d   Kavotha, Déogratias ^e   Kervyn, François ^f   Lucas, Celia ^a,b   Lukaya, François ^e   Osodundu, Etoy ^e   Wauthier, Christelle ^f,g   Fernández, José ^c  

^a National Museum of Natural History   (Luxembourg)

^b European Center for Geodynamics and Seismology and The Luxembourg National Museum of Natural History   (Luxembourg)

^c CSIC UCM Instituto de Astronomia y Geodesia IAG   (Spain)

^d Department of Earth and Environmental Sciences   (United States)

^e Goma Volcano Observatory   (Congo)

^f ROYAL MUSEUM FOR CENTRAL AFRICA   (Belgium)

^g UNIVERSITY OF LIÈGE   (Belgium)

Author keywords

Africa; Body waves; Continental tectonics: extensional; Earthquake source observations; Radar interferometry; Seismicity and tectonics

Indexed keywords

AFRICA; BODY WAVES; CONTINENTAL TECTONICS: EXTENSIONAL; EARTHQUAKE SOURCE OBSERVATIONS; RADAR INTERFEROMETRY; SEISMICITY AND TECTONICS;

CARBON DIOXIDE; GEODETIC SATELLITES; INTERFEROMETRY; LAKES; METHANE; RADAR; STRUCTURAL GEOLOGY; TECTONICS; VOLCANOES;

EARTHQUAKES;

DATA SET; EARTHQUAKE EVENT; EARTHQUAKE MAGNITUDE; EARTHQUAKE RUPTURE; EXTENSIONAL TECTONICS; FAULT PLANE; FAULTING; MOMENT TENSOR; NORMAL FAULT; P-WAVE; RADAR INTERFEROMETRY; RIFTING; SEISMICITY; SH-WAVE; SOURCE PARAMETERS; TELESEISMIC WAVE;

BUKAVU; CYANGUGU; DEMOCRATIC REPUBLIC CONGO; EAST AFRICAN LAKES; LAKE KIVU; RWANDA; SUD KIVU; WEST PROVINCE;

EID: 78751628357     PISSN: 0956540X     EISSN: 1365246X     Source Type: Journal    
DOI: 10.1111/j.1365-246X.2010.04899.x     Document Type: Article

References (92)

1. Albaric, J., Déverchère, J., Petit, C., Perrot, J. & Le Gall, B., 2009. Crustal rheology and depth distribution of earthquakes: insights from the central and southern East African Rift System, Tectonophysics, 468, 28-41
2. Amelung, F. & Bell, J.W., 2003. Interferometric synthetic aperture radar observations of the 1994 Double Spring Flat, Nevada, earthquake (M5.9): main shock accompanied by triggered slip on a conjugate fault, J. geophys. Res., 108(B9), 2433, doi:.
3. w≥ 4.5, using intermediate-period surface waves, Bull. seism. Soc. Am., 88(4), 1003-1013.
4. Ayele, A., et al., 2009. The September 2005 mega-dike emplacement in the Manda-Hararo (Afar) nascent oceanic rift, Geophys. Res. Lett., 36, 20306, doi:.
5. Baer, G. & Hamiel Y., 2010. Form and growth of an embryonic continental rift: InSAR observations and modelling of the 2009 western Arabia rifting episode. Geophys. J. Int., 182, 155-167, doi:.
6. Barth, A., Wenzel, F. & Giardini, D., 2007. Frequency sensitive moment tensor inversion for light to moderate magnitude earthquakes in eastern Africa, Geophys. Res. Lett., 34, 15302, doi:.
7. Bialas, R., Buck, R. & Qin, R., 2010. How much magma is required to rift a continent? Earth planet. Sci. Lett., 292, 68-78, doi:.
8. Biggs, J., Robinson, D.P. & Dixon, T.H., 2009a. The 2007 Pisco, Peru, earthquake (M8.0): seismology and geodesy, Geophys. J. Int., 176, 657-669, doi:.
9. Biggs J., Amelung, F., Gourmelen, N., Dixon, T.H. & Kim, S.-W., 2009b. InSAR observations of 2007 Tanzania rifting episode reveal mixed fault and dyke extension in an immature continental rift, Geophys. J. Int., 179, 549-558, doi:.
10. Biggs, J., Nissen, E., Craig, T., Jackson, J. & Robinson, D.P., 2010. Breaking up the hanging wall of a rift-border fault: the 2009 Karonga earthquakes, Malawi, Geophys. Res. Lett., 37, 11305, doi:.
11. Bonaccorso, A., Cianetti, S., Giunchi, C., Trasatti, E., Bonafede, M. & Boschi, E., 2005. Analytical and 3-D numerical modelling of Mt. Etna (Italy) volcano inflation, Geophys. J. Int., 163, 852-862.
12. Bonjer, K.P., Fucha, K. & Wohlenberg, J., 1970. Crustal structure of the East African Rift system for spectral response ratios of long-period body waves, Zeitshr. Geophys., 36, 287-297.
13. Bram, K., 1975. Zum Aufbau der Kruste und oberen mantels in bereich des weslichen grabens des Ostrafrikansichen Grabensystem und im Ostlinchen Zaire-Bechen, Ergebnisse Einer Untersuchung der Raumwellem von Nah-Erdbeben, Geophysikalische Abhandlungen, 4, Institut fur Geophysik, Freie Universitat, Berlin, pp. 1-65.
14. Buck, R., 1988. Flexural rotation of normal faults, Tectonics, 7(5), 959-973.
15. Bürgmann R., Rosen, P.A. & Fielding, E.J., 2000. Synthetic aperture radar interferometry to measure Earth's surface topography and its deformation, Annu. Rev. Earth Planet. Sci., 28, 169-209.
16. Calais, E., et al., 2008. Aseismic strain accommodation by slow slip and dyking in a youthful continental rift, East Africa, Nature, 456(7223), 783-788, doi:.
17. Cattin, R., Briole, P., Lyon-Caen, H., Bernard, P. & Pinettes, P., 1999. Effects of superficial layers on coseismic displacements for a dip-slip fault and geophysical implications, Geophys. J. Int., 137, 149-158.
18. Chen, C.W. & Zebker, H.A., 2001. Two-dimensional phase unwrapping with use of statistical models for cost functions in nonlinear optimization, J. Opt. Soc. Am., A, 18, 338-351.
19. Dawson J. & Tregoning, P., 2007. Uncertainty analysis of earthquake source parameters determined from InSAR: a simulation study, J. geophys. Res., 112, 09406, doi:.
20. Dawson, J., Cummins, P., Tregoning, P. & Leonard, M., 2008. Shallow intraplate earthquakes in Western Australia observed by Interferometric Synthetic Aperture Radar, J. geophys. Res., 113, 11408, doi:.
21. Delvaux, D. & Barth, A., 2010. African stress pattern from formal inversion of focal mechanism data, Tectonophysics, 482, 105-128.
22. d'Oreye, N., et al., 2008. Systematic InSAR monitoring of African active volcanic zones: what we have learned in three years, or a harvest beyond our expectations, in Proceedings of the. Second workshop on USE of Remote Sensing Techniques for Monitoring Volcanoes and Seismogenic Areas (USEReST 2008), Naples, Italy, 1-4244-2547-1/08/$20.00 ©2008 IEEE, 57-62.
23. Dubois L., Feigl, K.L., Komatitsch, D., Árnadóttir, T. & Sigmundsson, F., 2008. Three-dimensional mechanical models for the June 2000 earthquake sequence in the south Iceland seismic zone, Tectonophysics, 457(1-2), 12-29.
24. Dziewonski, A.M. & Anderson, D.L., 1981. Preliminary Reference Earth Model (PREM), Phys. Earth planet. Inter., 25, 297-356.
25. Dziewonski, A.M., Chou, T.-A. & Woodhouse, J.H., 1981. Determination of earthquake source parameters from waveform data for studies of global and regional seismicity, J. geophys. Res., 86(B4), 2825-2852.
26. Ebinger, C.J., 1989. Geometric and Kinematic development of border faults and accommodation zones, Kivu-Rusizi Rift, Africa, Tectonics, 8(1), 117-133.
27. Ebinger, C. & Furman, T., 20022003. Geodynamical setting of the Virunga volcanic province, East Africa, Acta Vulcanologica, 14/15(1-2), 9-16.
28. Ebinger C.J. & Hayward, N., 1996. Soft plates and hot spots: views from Afar, J. geophys. Res., 101(B10), 21 859-21 876.
29. Ebinger, C.J., Deino, A.L., Drake, R.E., & Tesha, A.L., 1989. Chronology of Volcanism and Rift Basin Propagation: Rungwe Volcanic Province, East Africa, J. geophys. Res., 94(B11), 15 785-15 803.
30. Ebinger, C.J., Karner, G.D. & Weissel, J.K., 1991. Mechanical strength of extended continental lithosphere: constraints from the Western Rift System, East Africa, Tectonics, 10(6), 1239-1256.
31. Ebinger, C.J., et al., 2008. Capturing magma intrusion and faulting processes during continental rupture: seismicity of the Dabbahu (Afar) rift, Geophys. J. Int., 174, 1138-1152.
32. Ebinger, C., Ayele, A., Keir, D., Rowland, J., Yirgu, G., Wright, T., Belachew, M. & Hamling, I., 2010. Length and timescales of rift faulting and magma intrusion: the Afar rifting cycle from 2005 to present, Annu. Rev. Earth planet. Sci., 38, 437-464, doi:.
33. Ekström, G., 1989. A very broad band inversion method for the recovery of earthquake source parameters, Tectonophysics, 166, 73-100.
34. Farr, T.G., Rosen, P.A., Caro, E., Crippen, R. & Duren, R., 2007. The Shuttle Radar Topography Mission, Rev. of Geophys., 45, RG2004, doi:.
35. Feigl, K.L. & Thurber, C.H., 2009. A method for modelling radar interferograms without phase unwrapping: application to the M 5 Fawnskin, California earthquake of 1992 December 4, Geophys. J. Int., 176, 491-504, doi:.
36. Feigl, K., Geasperi, J., Sigmundsson, F. & Rigo, A., 2000. Crustal deformation near Hengill volcano, Iceland 1993-1998: Coupling between magmatic activity and faulting inferred from elastic modeling of satellite radar interferograms, J. geophys. Res., 105, 25655-25670.
37. Foster, A.N. & Jackson, J.A., 1998. Source parameters of large African earthquakes: implications for crustal rheology and regional kinematics, Geophys. J. Int., 134, 422-448.
38. Furman, T. & Graham, D., 1999. Erosion of lithospheric mantle beneath the East African Rift system: geochemical evidence from the Kivu volcanic province. Lithos, 48, 237-262.
39. Grandin, R., et al., 2009. September 2005 Manda Hararo-Dabbahu rifting event, Afar (Ethiopia): Constraints provided by geodetic data, J. geophys. Res., 114, B08404, doi:.
40. Haberyan, K.A. & Hecky, R.E., 1987. The late Pleistocene and Holocene stratigraphy and paleolimnology of Lakes Kivu and Tanganyika, Palaeogeog. Palaeoclimat. Palaeoecol., 61, 169-197.
41. Hamaguchi, H., Nishimura, T. & Zana, N., 1992. Process of the 1977 Nyiragongo eruption inferred from the analysis of long-period earthquakes and volcanic tremors, Tectonophysics, 209, 241-254.
42. Hamling, I.J., et al., 2009. Geodetic observations of the ongoing Dabbahu rifting episode: new dyke intrusions in 2006 and 2007, Geophys. J. Int., 178, 989-1003, doi:.
43. He, Y-M., Wang, W-M. & Yao, Z-X., 2003. Static deformation due to Shear and Tensile Faults in a layered half-space, Bull. seism. Soc. Am., 93, 2253-2263.
44. Hofstetter, R. & Beyth, M., 2003. The Afar Depression: interpretation of the 1960-2000 earthquakes, Geophys. J. Int., 155, 715-732.
45. Kampes B., Hanssen, R. & Perski, Z., 2003. Radar interferometry with public domain tools, Proceedings of the 2nd ESA Fringe 2003 workshop, ESA-ESRIN, Frascati, Italy .
46. Kampunzu, A.B., Bonhomme, M.G. & Kanika, M., 1998. Geochronology of volcanic rocks and evolution of the Cenozoic Western Branch of the East African rift system, J. African Earth Sci., 26, 441-461.
47. Kasahara, M., Hamaguchi, H., Tanaka, K., Zana, N. & Kabwik, M., 1992. Recent horizontal crustal movements in and around volcano Nyamuragira, Zaire, Tectonophysics, 209, 267-272.
48. Kavotha, S.K., Mavonga, T., Durieux, J. & Mukambilwa, K., 20022003. Towards a more detailed seismic picture of the January 17th, 2002 Nyiragongo Eruption, Acta Vulcanologica, 14/51(2-1) 001-78.
49. Keir, D., Ebinger, C.J., Stuart, G.W., Daly, E. & Ayele, A., 2006. Strain accommodation by magmatism and faulting as rifting proceeds to breakup: seismicity of the northern Ethiopian rift, J. geophys. Res., 111, 05314, doi:.
50. Keir, D., et al., 2009. Evidence for focused magmatic accretion at segment centers from lateral dike injections captured beneath the Red Sea rift in Afar, Geology, 37, 59-62.
51. Kling, G.W. et al., 1987. The 1986 Lake Nyos Gas Disaster in Cameroon, West Africa, Science, 236, 169-175.
52. Komorowski, J.C. et al., 20022003. The January 2002 eruption - The January 2002 flank eruption of Nyiragongo Volcano (Democratic Republic of Congo): chronology, evidence for a tectonic rift trigger, and impact of lava flows on the city of Goma, Acta Vulcanologica, 14/15(1-2), 27-62, doi:.
53. Kontoes, C., Elias, P., Sykioti, O., Briole, P., Remy, D., Sachpazi, M., Veis, G. & Kotsis, I., 2000. Displacement field and fault model for the September 7, 1999 Athens earthquake inferred from ERS2 satellite radar interferometry, Geophys. Res. Lett., 27(24), 3989-3992.
54. Lerch, D.W., Klemperer, S.L., Egger, A.E., Colgan, J.P. & Miller, E.L., 2010. The northwestern margin of the Basin-and-Range Province, part 1: Reflection profiling of the moderate-angle (~30°) Surprise Valley Fault, Tectonophysics, 488, 143-149.
55. Lohman, R.B. & Simons, M., 2005. Locations of selected small earthquakes in the Zagros mountains, Geochem. Geophys. Geosys., 6(1), Q03001, doi:.
56. Lohman R.B., Simons, M. & Savage, B., 2002. Location and mechanism of the Little Skull Mountain earthquake as constrained by satellite radar interferometry and seismic waveform modeling, J. geophys. Res., 107(B6), 2118, doi:.
57. Lomax, A., Virieux, J., Volant, P. & Berge, C., 2000. Probabilistic earthquake location in 3D and layered models: Introduction of a Metropolis-Gibbs method and comparison with linear locations, in Advances in Seismic Event Location, pp. 101-134, eds Thurber, C.H. & Rabinowitz, N., Kluwer, Amsterdam .
58. Massonnet, D. & Feigl, K., 1998. Radar interferometry and its application to changes in the Earth's surface, Rev. Geophys., 36(4), 441-500.
59. Masterlark, T. & Hughes, K.L.H., 2008. Next generation of deformation models for the 2004 M9 Sumatra-Andaman earthquake, Geophys. Res. Lett., 35(19), 19310, doi:.
60. Mavonga, T., 2007. Some characteristics of aftershock sequences of major earthquakes from 1994 to 2002 in the Kivu province, Western Rift Valley of Africa, Tectonophysics, 439, 1-12.
61. Mavonga, T. & Durrheim, R.J., 2009. Probabilistic seismic hazard assessment for the Democratic Republic of Congo and surrounding areas, South African J. Geol., 112, 329-342.
62. Mavonga, T., Kavotha, S.K., Lukaya, N., Etoy O. & Durieux, J., 2006. Seismic activity prior to the May 8, 2004 eruption of volcano Nyamuragira, Western Rift Valley of Africa, J. Volc. Geotherm. Res., 158, 355-360.
63. Mellors R.J., Magistrale, H., Earle, P. & Cogbill, A., 2004. Comparison of Four Moderate-Size Earthquakes in Southern California Using Seismology and InSAR, Bull. seism. Soc. Am., 94(6), 2004-2014.
64. Moeyersons, J., et al., 2004. A geomorphological assessment of landslide origin at Bukavu, Democratic Republic of the Congo, Eng. Geol., 72(1-2), 73-87.
65. Montgomery-Brown, E.K., Segall, P. & Miklius, A., 2009. Kilauea slow slip events: identification, source inversions, and relation to seismicity, J. geophys. Res., 114, 00A03, doi:.
66. Morley, C.K., 1989. Extension, detachments, and sedimentation in continental rifts (with particular reference to East Africa), Tectonics, 8(6), 1175-1192.
67. Morley, C.K., 2002. Tectonic settings of continental extensional provinces and their impact on sedimentation and hydrocarbon prospectivity, in Sedimentation in Continental Rifts, Vol. 73, pp. 25-55, Special Publication-SEPM, Society for Sedimentary Geology, ISBN 1-56576-082-4.
68. Nayar, A., 2009. Earth science: a lakeful of trouble, Nature, 460(7253), 321-323.
69. Nelder, J.A. & Mead, R., 1965. A simplex method for function minimization, Comput. J., 7, 308-313, doi:.
70. OCHA, Regional Office for Central Africa and East Africa, 2008. Earthquake in the Great Lakes Regions, Regional situation update report, 15 February 2008.
71. Okada, Y., 1985. Surface deformation due to shear and tensile faults in a half-space, Bull. seism. Soc. Am., 75, 1135-1154.
72. Pagli C., Sigmundsson, F., Pedersen, R., Einarsson, P., Arnadottir, T. & Feigl, K.L., 2007. Crustal deformation associated with the 1996 Gjalp subglacial eruption, Iceland: InSAR studies in affected areas adjacent to the Vatnajokull ice cap, Earth planet. Sci. Lett., 259, 24-33, doi:.
73. Pallister, J.S. et al., 2010. Broad accommodation of rift-related extension recorded by dyke intrusion in Saudi Arabia, Nature Geoscience, 3, 705-712, doi:.
74. Parsons, T. & Thompson, G.A., 1991. The Role of Magma overpressure in suppressing earthquakes and topography: worldwide examples, Science, 253, 1399-1402.
75. Pasteels, P., Villeneuve, M., De Paepe, P. & Klerkx, J., 1989. Timing of the volcanism of the southern Kivu province: implications for the evolution of the western branch of the East African Rift system, Earth planet. Sci. Lett., 94, 353-363.
76. Pérez-Gussinyé, M., Metois, M., Fernández, M., Vergés, J., Fullea, J. & Lowry, A.R., 2009. Effective elastic thickness of Africa and its relationship to other proxies for lithospheric structure and surface tectonics, Earth planet. Sci. Lett., 287, 152-167
77. Pritchard, M.E. & Fielding, E.J., 2008. A study of the 2006 and 2007 earthquake sequence of Pisco, Peru, with InSAR and teleseismic data, Geophys. Res. Let., 35, 09308, doi:.
78. Rigo, A. & Massonnet, D., 1999. Investigating the 1996 Pyrenean earthquake (France) with SAR Interferograms heavily distorted by atmosphere, Geophys. Res. Lett., 26(21), 3217-3220.
79. Rosen, P.A., Hensley, S., Peltzer, G. & Simons M., 2004. Updated Repeat Orbit Interferometry Package Released, EOS, Trans. Am. geophys. Un., 85(5), 47.
80. Rubin, A., 1992. Dike-induced faulting and graben subsidence in volcanic rift zones, J. geophys. Res, 97(B2), 1839-1858.
81. Schmid, M. Halbwachs, M., Wehrli, B. & Wüest, A., 2005. Weak mixing in Lake Kivu: new insights indicate increasing risk of uncontrolled gas eruption, Geochem. Geophys. Geosys. 6(7), 07009, doi:.
82. Smets, B., Wauthier, C. & d'Oreye, N., 2010. A new map of the lava flow field of Nyamulagira (D.R.Congo) from satellite imagery, J. African Earth Sci., 58(5), 778-786.
83. Smith, G. & Ekström, G., 1996. Improving teleseismic event locations using a three dimensional Earth model, Bull. seism. Soc. Am., 86(3), 788-796.
84. Stamps, D.S., Calais, E., Saria, E., Hartnady, C., Nocquet, J.-M., Ebinger, C.J. & Fernandes, R.M., 2008. A kinematic model for the East African Rift, Geophys. Res. Lett., 35, L05304, doi:.
85. Stramondo, S., et al., 1999. The September 26, 1997 Colfiorito, Italy, earthquakes: modeled coseismic surface displacement from SAR interferometry and GPS, Geophys. Res. Lett., 26(7), 883-886.
86. Tassi, F., et al., 2009. Water and gas chemistry at Lake Kivu (DRC): Geochemical evidence of vertical and horizontal heterogeneities in a multibasin structure, Geochem. Geophys. Geosys., 10(2), 02005, doi:.
87. Tedesco, D., et al., 2007. January 2002 volcano-tectonic eruption of Nyiragongo volcano, Democratic Republic of Congo, J. geophys. Res., 112, 09202, doi:.
88. Tessema, A. & Antoine, L.A.G., 2003. Variation in effective elastic plate thickness of the East Africa lithosphere, J. geophys. Res., 108, 2224, doi:.
89. Utsu, T., 1961. A statistical study on the occurrence of aftershocks, Geophys. Mag., 30, 521-605.
90. Villeneuve, M., 1980. La structure du Rift Africain dans la Région du Lac Kivu (Zaïre oriental), B. Volcanol., 43-3, 541-551, doi:.
91. Wessel, P. & Smith, W.H.F., 1998. New, improved version of the Generic Mapping Tools released, EOS, Trans. Am. geophys. Un., 79, 579.
92. Wright, T.J., Ebinger, C., Biggs, J., Ayele, A., Yirgu, G., Keir, D. & Stork, A., 2006. Magma-maintained rift segmentation at continental rupture in the 2005 Afar dyking episode, Nature, 442, 291-294.