Critical evaluation of seismic activities in Africa and curtailment policies – a review
Tóm tắt
The present paper discusses the seismicity of Africa and the need for the implementation of vibration control strategies in Africa, erroneously considered as aseismic. The review catalogues information on the seismicity of Africa, attesting that virtually every region in the African continent has come under the threat of some form of seismic event. The magnitudes and intensities of these seismic activities has resulted in devastations, including: loss of lives, building and civil structures collapse, displacements of people, economic losses, psychological traumatization, and grave fear. Evidences available show that most of the devastations are accentuated by tremor induced collapse of buildings and civil structures. It is thus imperative for substantive, simply implementable, and sustainable proactive measures for controlling the threats of seismic events be discussed within the African context. Current mitigation strategies in Africa include the establishment of seismic codes which govern the design of civil structures. The challenge to the implementation and the effectiveness of the existing African seismic codes was briefly discussed, and new measures which can reduce seismic risks were also highlighted The submissions of the paper is envisaged will create awareness on the budding seismic activities in Africa and awaken relevant authorities on the need for timely and practicable mitigation strategies to be in place to avert the attendant catastrophes associated with seismic occurrences.
Tài liệu tham khảo
Abdel-Raheem, K.A., S.E. Abdel Raheem, H.M. Soghair, and M.H. Ahmed. 2010. Evaluation of seismic performance of multistory buildings designed according to Egyptian code. Journal of Engineering Sciences, Assiut University 38 (2): 381–402.
Afegbua, K.U., T.A. Yakubu, O.U. Akpan, D. Duncan, and E.S. Usifoh. 2011. Towards an integrated seismic hazard monitoring in Nigeria using geophysical and geodetic techniques. International Journal of the Physical Sciences 6 (28): 6385–6393.
Akpan, E., A.O. Ilori, and N.U. Essien. 2015. Geophysical investigation of Obot Ekpo landslide site, Cross River state, Nigeria. Journal of African Earth Sciences 109: 154–167.
Akpan, O.U., M.A. Isogun, T.A. Yakubu, A.A. Adepelumi, C.S. Okereke, A.S. Oniku, and M.I. Oden. 2014. An evaluation of the 11th September, 2009 earthquake and its implication for understanding the Seismotectonics of South Western Nigeria. Open Journal of Geology 4 (10): 542–550.
Akpan, O.U., and T.A. Yakubu. 2010. A review of earthquake occurrences and observations in Nigeria. Earthquake Science (3): 289–294.
Alabi, A.A., O.D. Akinyemi, and A. Adewale. 2013. Seismicity pattern in southern Africa from 1986 to 2009. Earth Science Research 2 (2): 1–10.
All Africa.com, The Observer. 2016: Lives lost, houses collapse as earthquake hits Uganda. Retrieved 2017-11-10.
Allotey, N.K., G. Arku, and P.E. Amponsah. 2010. Earthquake-disaster preparedness: the case of Accra. International Journal of Disaster Resilience in the Built Environment 1 (2): 140–156.
Amponsah, P., G. Leydecker, and R. Muff. 2012. Earthquake catalogue of Ghana for the time period 1615–2003 with special reference to the tectono-structural evolution of south-East Ghana. Journal of African Earth Sciences 75: 1–13.
Amponsah, P.E. 2002. Seismic activity in relation to fault systems in southern Ghan. Journal of African Earth Sciences 35: 227–234.
Amponsah PE, Banoeng-Yakubo BK, , Panza GF, Vaccari F. Deterministic seismic ground motion modeling of the greater Accra metropolitan area, southeastern Ghana. South African Journal of Geology, 2009;112:317–328.
Arya, A. 2000. Non-engineered construction in developing countries—an approach toward earthquake risk prediction. In Proceedings of 12th WCEE, 2824.
Badawi, H.S., and S.A. Mourad. 1994. Observations from the 12 October 1992 Dahshour earthquake in Egypt. Natural Hazards 10: 261–274.
Badawy, A., A.K. Abdel-Fattah, S.M. Ali, and W. Farid. 2008. Source parameters of the ML 4.1 earthquake of November 08, 2006, southeast Beni-Suef, northern Egypt. Journal of African Earth Sciences 51: 151–159.
Badawy, A., I. Korrat, M. El-Hadidy, and H. Gaber. 2016. Update earthquake risk assessment in Cairo, Egypt. Journal of Seismology. https://doi.org/10.1007/s10950-016-9621-5.
Baruah, S., S. Baruah, A. Kalita, R. Biswas, N. Gogoi, J.L. Gautam, M. Sanoujam, and J.R. Kayal. 2012. Moment magnitude – local magnitude relationship for the earthquakes of the Shillong-Mikir plateau, northeastern India region: a new perspective. Geomatics, Natural Hazards and Risk 3 (4): 365–375.
Bendimerad F. The 21 May 2003 Boumerdes earthquake lessons learned and recommendations, 13th World Conference on Earthquake Engineering. Vancouver (2004) Paper No. 9001.
Bilham, R. 2009. The seismic future of cities. Bull Earthquake Enginerring 7: 839–887.
Bouhadad, Y., A. Nour, A. Slimani, N. Laouami, and D. Belhai. 2004. The Boumerdes (Algeria) earthquake of May 21, 2003 (Mw = 6.8): ground deformation and intensity. Journal of Seismology 8: 497–506.
Bourahla N, Tafraout S, Bouriche F. 2008 The algerian seismic code and perspectives of the african code. RPA 99-2001 | Earthquake Engineering | Earthquakes - Scribd, https://www.scribd.com/document/64841286/RPA-99-2001
Brandt, M. 2011. Seismic Hazard in South Africa. Council for Geoscience Report 0061: 1–22.
Chorowicz, J. 2005. The East African rift system. Journal of African Earth Sciences 43: 379–410.
Constantinou, M.C., and M.D. Symans. 1993. Seismic response of structures with supplemental damping. The Structural Design of Tall Buildings 2: 77–92.
De Risi, R., F. Jalayer, I. Iervolino, and G. Manfredi. 2011. Seismic performance assessment and upgrade design of a generic Adobe building. ANIDIS BARI.
Dispatch 2017, (Uganda’s News monthly, 2017-07-30), 5.3 magnitude earthquake strikes southwestern Uganda, Retrieved 2017-11-01.
Doocy, S., A. Daniels, C. Packer, A. Dick, and T.D. Kirsch. 2013. The Human Impact of Earthquakes: a Historical Review of Events 1980-2009 and Systematic Literature Review. Plos Current Disasters 1: 1.
Eiby, G.A. 1966. The modified Mercalli scale of earthquake intensity and its use in New Zealand. New Zealand Journal of Geology and Geophysics 9 (1–2): 122–129.
El-Arab, I.E. 2011. Seismic analysis of existing school buildings using different Egyptian seismic provisions. Procedia Engineering: The Twelfth East Asia-Pacific Conference on Structural Engineering and Construction 14: 1906–1912.
Elnashai, A.S., and L.D. Sarno. 2008. Fundamentals of earthquake engineering.
El-Sayed, A., R. Arvidsson, and O. Kulh’anek. 1998. The 1992 Cairo earthquake: a case study of a small destructive event. Journal of Seismology 2: 293–302.
Eze, C.L., V.N. Sunday, S.A. Ugwu, E.D. Uko, and S.A. Ngah. 2012. Mechanical model for Nigerian intraplate earth tremors. Advances in Science and Technology 6(2): 80–84.
Farahani, J.V. 2014. Man-made major hazards like earthquake or explosion; case study, Turkish mine explosion (13 may 2014). Iranian Journal of Public Health 43 (10): 444–1450.
Fernandez, F. 2014. Strategies to Reduce the Risk of Building Collapse in Developing Countries, PhD Thesis (Dissertations.) Paper 493. Pittsburgh: Carnegie Mellon University.
Furman, T., J.G. Bryce, J. Karson, and A. Iotti. 2004. East African rift system (EARS) plume structure: Insights from quaternary mafic lavas of Turkana, Kenya. Journal of Petrology 45 (5): 1069–1088.
Grünthal G (ed) European Macroseismic Scale 1998. Cahiers du Centre Europèen de Gèodynamique et de Seismologie. Conseil de l’Europe, Conseil de l’Europe (1998).
Guo, H. 2010. Understanding global natural disasters and the role of earth observation. International Journal of Digital Earth 3 (3): 221–230.
Hamada, M. 2014. Earthquake-resistant design and reinforcement. In Engineering for earthquake disaster mitigation, springer series in geomechanics and geoengineering. https://doi.org/10.1007/978-4-431-54892-8_2.
Hammed, O.S., M.O. Awoyemi, G.O. Badmus, and O.O. Sanni. 2016. Interdepedence and variations of earthquake parameters on African lithospheric plate using Gutenberg and Richter relations. Journal of Geography, Environment and Earth Science International 4 (4): 1–12.
Housner, G.W., L.A. Bergman, T.K. Caughey, A.G. Chassiakos, R.O. Claus, S.F. Masri, R.E. Skelton, T.T. Soong, B.F. Spencer, and J.T.P. Yao. 1997. Structural control: Past, present, and future. Journal of Engineering Mechanic 123 (9): 897–971.
Hussein, H.M., I. Marzouk, A.R. Moustafa, and N. Hurukawa. 2006. Preliminary seismicity and focal mechanisms in the southern gulf of Suez: August 1994 through december 1997. Journal of African Earth Sciences 45: 48–60.
Kanamori, H. 1983. Magnitude scale and quantification of earthquakes. Tectonophysics 93: 185–199.
Kassegne, S.K. 2014. Proposed Considerations for Revision of EBCS-8:1995 for Conservative Seismic Zoning and Stringent Requirements for Torsionally Irregular Buildings.
Kebede, F., and O. Kulhaneck. 1991. Recent seismicity of the east African rift system and its implications. Physics of the Earth and Planetary Interiors 68: 259–273.
Kenny, C. 2009. Why do people die in earthquakes? The costs, benefits and institutions of disaster risk reduction in developing countries. The World Bank Sustainable Development Network Finance Economics & Urban Department, Policy Research Working Paper 4823, 1–40.
Khalil, A.E., A. Deif, and H.E. Abdel Hafiez. 2015. Seismic Hazard assessments at Islamic Cairo, Egypt. Journal of African Earth Sciences 112: 287–298. https://doi.org/10.1016/j.jafrearsci.2015.09.008.
Kijko, A., S.J.P. Retief, and G. Graham. 2002. Seismic hazard and risk assessment for Tulbagh, South Africa: Part I – Assessmaent of seismic Hazard. Natural Hazards 26: 175–201.
Kinde, S., S. Engeda, A. Kebede, and E. Tessema. 2011. Notes and proposed guidelines on updated seismic codes in Ethiopia implication for large-scale infrastructures. Journal of EEA 28: 91–110.
Krüger, F., and F. Scherbaum. 2014. Short note: the 29 September 1969, Ceres, South Africa, earthquake: full waveform moment tensor inversion for point source and kinematic source parameters. Bulletin of the Seismological Society of America 104 (1): 1–6. https://doi.org/10.1785/0120130209.
Lee, W.J., B. Weber, G. Feltrin, C. Czaderski, M. Motavalli, and C. Leinenbach. 2013. Stress recovery behaviour of an Fe–Mn–Si–Cr–Ni–VC shape memory alloy used for prestressing. Smart Materials and Structures 22: 125037 (9pp).
Linzer, L.M., M. Bejaichund, A. Cichowicz, R.J. Durrheim, O.D. Goldbach, M.O. Kataka, and J.S. Webb. 2007. Recent research in seismology in South Africa. South African Journal of Science 103: 9–10.
Liu, R., Y. Chen, X. Ren, Z. Xu, L. Sun, H. Yang, J. Liang, and K. Ren. 2007. Comparison between different earthquake magnitudes determined by China seismograph network. Acta Seismologica Sinica 20 (5): 497–506.
Lubkowski, Z., K. Coates, M. Villani, N. Jirouskova, and M. Willis. 2014. Seismic design considerations for East Africa. In Second European Conference on Earthquake, 1–12. Istanbul: Engineering and Seismology.
Mangongolo, A., F.O. Strasser, I. Saunders, and G.W. Rathod. 2017. Depths of earthquakes in South Africa. Seismological Research Letters 88 (4): 1–11.
Manyele, A. 2016. The 10Th September 2016 Lake Victoria earthquake: Insights from distributions of strong ground motion, felt intensity and induced damages. International Journal of Science, Engineering and Technology Research 5 (10): 3009–3014.
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.
Mavonga, T., and R.J. Durrheim. 2009. Probabilistic seismic hazard assessment for the democratic republic of Congo and surrounding areas. South African Journal of Geology 112: 329–342.
Mavonga, T., N. Zana, and R.J. Durrheim. 2010. Studies of crustal structure, seismic precursors to volcanic eruptions and earthquake hazard in the eastern provinces of the Democratic Republic of Congo. Journal of African Earth Sciences 58: 623–633.
Meghraoui, M., A. Harbi, and H.M. Hussein. 2014. Preface to the special issue “Seismotectonics and seismic hazards in North Africa”. Journal of Seismology 18: 203–204.
Meslem, A., F. Yamazaki, Y. Maruyama, D. Benouar, A. Kibboua, and Y. Mehani. 2012. The effects of building characteristics and site conditions on the damage distribution in Boumerde’s after the 2003 Algeria earthquake. Earthquake Spectra 28 (1): 185–216.
Midzi, V., J.J. Bommer, F.O. Strasser, P. Albini, B.S. Zulu, K. Prasad, and N.S. Flint. 2013. An intensity database for earthquakes in South Africa from 1912 to 2011. Journal of Seismology. https://doi.org/10.1007/s10950-013-9387-y.
Milanovsky, E.E. 1972. Continental rift zones: their arrangement and development, In: R.W. Girdler (Editor), East African Rifts. Tectonophysics 15 (l/2): 65–70.
Moeyersons, J., P. Tre’fois, J. Lavreau, D. Alimasi, I. Badriyo, B. Mitima, M. Mundala, D.O. Munganga, and L. Nahimana. 2004. A geomorphological assessment of landslide origin at Bukavu, Democratic Republic of the Congo. Engineering Geology 72: 73–87.
Morley, C.K., D.K. Ngenoh, and J.K. Ego. 1999. Introduction to the east African rift system. In Geoscience of rift systems—Evolution of East Africa: AAPG studies in geology no. 44, ed. C.K. Morley, 1–18.
Morsy, M., H.M. Hussein, K.M. Abou Elenean, and Sh. El-Hady. 2011. Stress field in the central and northern parts of the Gulf of Suez area, Egypt from earthquake fault plane solutions. Journal of African Earth Sciences 60: 293–302.
Musson, R.M.W., G. Grünthal, and M. Stucchi. 2010. The comparison of macroseismic intensity scales. Journal of Seismology 14: 413–428.
Ndikum, E.N., C.T. Tabod, A.K. Tokam, and B.Z. Essimbi. 2014. Fault-plane solution of the earthquake of 19 march 2005 in Monatele (Cameroon). Open Journal of Geology 4: 289–293.
Nfomou, N., A.F. Tongwa, U.R. Ubangoh, A. Bekoa, N.J. Metuk, and H.J. Victor. 2004. The July 2002 earthquake in the Kribi region: Geological context and a preliminary evaluation of seismic risk in southwestern Cameroon. Journal of African Earth Sciences 40: 163–172.
Nyago J. Seismic observation and seismicity of Uganda, Uganda’s Seismological Activities and Earthquake Risk Mitigation, Retrieved 1 Nov 2017. http://iisee.kenken.go.jp/net/shiva/update/Uganda_Joseph_NYAGO_revised2.pdf
Nyblade, A.A., and R.A. Brazier. 2002. Precambrian lithospheric controls on the development of the east African rift system. Geological Society of America 30 (8): 755–758.
Ogubazghi, G., W. Ghebreab, and J. Havskov. 2004. Some features of the 1993 Bada earthquake swarm of southeastern Eritrea. Journal of African Earth Sciences 38: 135–143.
Ogunbiyi, M.A. 2014. The national building code and the construction industry professionals in Nigeria. International Journal of Social Sciences and Entrepreneurship 1 (12): 937–948.
Papazachos, B.C. 1990. Seismicity of the Aegean and surrounding area. Tecronophysics 178: 287–308.
Premium Times.com 2018. https://www.premiumtimesng.com/news/top-news/282825-abuja-tremor-not-earthquake-nigerian-govt.html, date. Retrieved: 15 Sept 2018.
Quartz Africa, Sierra Leone’s tragic mudslide disaster is a stark reminder of the country’s poor urban planning, Retrieved 2017-11-08.
Raheem, S.E.A. 2013. Evaluation of Egyptian code provisions for seismic design of moment-resisting-frame multi-story buildings. International Journal of Advanced Structural Engineering 5 (20): 1–18.
Rao, P.C., and D.B. Rao. 2004. A textbook of geology.
Relief Web, Sierra Leone: Mudslides - Aug 2017, 2017, Retrieved 2017-11-08
Retief, J.V., and J.A. Wium. 2012. Principles and application of structural design code development in South Africa. Structural Engineering International 2: 182–189.
Richter, C. 1935. An instrumental earthquake magnitude scale. Bulletin of the Seismological Society of America 25 (1): 1–31.
Ring, U. 2014. The east African rift system. Austrian Journal of Earth Sciences: An International Journal of the Austrian Geological Society 107 (1): 132–146.
Roth, C.P., and A. Gebremeskel. 2017. Updated provisions of SANS 10160-4 for steel structures. Journal of the South African Institution of Civil Engineering 59 (1): 45–47 Note 75.
Samai, S., M. Idres, M. Ouyed, A. Bourmatte, M.S. Boughacha, M. Bezzeghoud, and J.F. Borges. 2017. A structural scheme proposal derived from geophysical data in the epicentral area of the Boumerdes (Algeria) earthquake of May 21, 2003. Journal of African Earth Sciences. https://doi.org/10.1016/j.jafrearsci.2017.05.018.
Saunders, I., M. Brandt, J. Steyn, D. Roblin, and A. Kijko. 2008. The south African National Seismograph Network. Seismological Research Letters 79 (2): 203–210.
Serror, M.H., M.M. Hassan, and S.A. Mourad. 2010. Towards a boundary between special and ordinary steel moment resisting frames in the Egyptian code. In Proceedings of 14th European Conference on Earthquake Engineering, 197. Ohrid.
Shelly, D.R. 2010. Periodic, chaotic, and doubled earthquake recurrence intervals on the deep San Andreas fault. Science 328: 1384–1388.
Shumba, B.T., D.J. Hlatywayo, and V. Midzi. 2009. Focal mechanism solution of the 15th march 2008, Nyamandlovu earthquake. South African Journal of Geology 112: 381–386.
Song, G., N. Ma, and H.N. Li. 2006. Applications of shape memory alloys in civil structures. Engineering Structures 28: 1266–1274.
Spencer, B.F., and S. Nagarajaiah. 2003. State of the art of structural control. Journal of Structural Engineering 129: 845–856.
Symans, M.D., and M.C. Constantinou. 1999. Semi-active control systems for seismic protection of structures: A state-of-the-art review. Engineering Structures 21: 469–487.
Toni, M., A. Barth, S.M. Ali, and F. Wenzel. 2016. Analysis of the similar epicenter earthquakes on 22 January 2013 and 01 June 2013, central gulf of Suez, Egypt. Journal of African Earth Sciences 121: 274–285.
Torra, V., A. Isalgue, F. Martorell, P. Terriault, and F.C. Lovey. 2007. Built in dampers for family homes via SMA: An ANSYS computation scheme based on mesoscopic and microscopic experimental analyses. Enineering Structures 29: 1889–1902.
Tsalha, M.S., U.A. Lar, T.A. Yakubu, U.A. Kadiri, and D. Duncan. 2015. The review of the historical and recent seismic activity in Nigeria. IOSR Journal of Applied Geology and Geophysics 3 (1): 8–56.
Twesigomwe, E.M. 1997. Seismic hazards in Uganda. Journal of African Earth Sciences 24 (1/2): 183–195.
US Goelogical Survey (2016): “Historic earthquakes and earthquake statistics: what damages are caused by earthquakes?” Retrieved 17 Aug 2017 at http://earthquake.usgs.gov/ learn/faq/?categoryID=11&faqID=95.
Vanguard.com. Earthquake in Nigeria: measures to avert devastating impacts— experts 2017, Retrieved 2017-10 29.
Wafula, D.M. 2011. Impacts of tectonic earthquake in the western rift valley of Africa on the volcanic activity of Nyirangongo, Virunga region. Asian Journal of Scientific Research 4 (3): 209–223.
Wilks, M., A. Ayele, J.M. Kendall, and J. Wookey. 2016. The 24th January 2016 Hawassa earthquake: Implications for seismic hazard in the Main Ethiopian rift. Journal of African Earth Sciences. https://doi.org/10.1016/j.jafrearsci.2016.11.007.
Wium, J.A. 2010. Background to draft SANS 10160 (2009): Part 4 seismic loading. Journal of the South African Institution of Civil Engineering 52 (1): 20–27 688.
Worku, A. 2011. Recent developments in the definition of design earthquake ground motions calling for a revision of the current ethiopian seismic code - EBCS 8: 1995. Journal of EEA 28: 1–15.
Worku, A. 2013. Seismic soil-structure interaction as a potential tool for economical seismic design of building structures. Journal of EEA 30: 55–66.
Worku, A. 2014. The status of basic design ground motion provisions in seismic design codes of sub-Saharan African countries-a critical review. Journal of the South African Institution of Civil Engineering 56 (1): 40–53 Paper 977.
Yang, Z., and W. Chen. 2008. Mozambique earthquake sequence of 2006: high-angle normal faulting in southern Africa. Journal of Geophysical Research 113 (B12303): 1–8.
Zajac, C., and T. Davis. 2015. A comparative analysis for base shear calculations between six countries with moderate seismic activity. In AEI, 775–787.
Zermout, S., F. Bakhti, Y. Mehani, M. Inukai, T. Azuhata, and T. Saito. 2014. Seismic vulnerability of a strategic building designed by Algerian seismic code RPA 99, using the capacity Spectrum method, the 14th world conference on earthquake engineering October 12-17, 2008, Beijing, China. Journal of Geology 4: 542–550.