Identification of local seismicity observed south of Aswan city — Egypt

Acta Geodaetica et Geophysica Hungarica - Tập 43 - Trang 93-103 - 2013
S. A. Dahy1, G. H. Hassib1, Abdel-Monem S. Mohamed1, A. Hassoup1
1National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt

Tóm tắt

Suddenly, Aswan Seismic Network detected and observed a number of events beside Aswan city. The magnitude of these events ranged from 0.9 to 2.6. These events were considered very important events because they were located not far from the Aswan High Dam. The main purpose of this work is to investigate and identification of these events using different seismic methods. Small earthquakes and explosions have the same flat and displacement spectrum for short-period P waves and discrimination of small events rests on detection and location. The final result appears that the source of these events is not an artificial type.

Tài liệu tham khảo

Basham P W, Whitham K 1971: In: Publications of the Earth Physics Branch, Department of Energy, Mines and Resources, Ottawa, 41, 145–182. Bennett T J, Barker B W, Mclaughlin K L, Murphy J R 1989: In: Final Report, GL-TR-89-0114, S-Cubed, La Jolla, California Douglas A, Hudson J A, Blamey C 1972: Geophys. J., 385–410. Douglas A, Richardson L, Hutchins M 1990: Geophys. J. Int., 100, 303–314. El-Khashab H M A, Hassib G H, Ibrahim E M, Dessoky M M 1991: J. Geodynamics, 14, 87–104. Ericsson U A 1970: Bull. Seismol. Soc. Am., 60, 1521–1546. Issawi B 1968: In: Egyp. Geological Survey paper No. 46, Cairo Issawi B 1978: Ann. Geol. Survey Egypt, 3, 237–253. Kebeasy R M, Simpson D W, Gharib A 1987: In: 29th General Assembly of IUGG (EASPI), Vancouver Lee W H K, Bennett R E E, Meagher K L 1972: U. S. Geological Survey open-file Report OTA 1988: Seismic verification of nuclear tests treaties. U. S. Congress, Office of Technology Assessment Pulli J J, Dysart P S 1987: Spectral study of regional earthquakes and chemical explosions recorded at the NORESS array, Technical Report, C 87-03, Center for Seismic Studies, Arlington, Virginia Simpson D, Kebeasy R, Maamoun M, Ibrahim E, Megahed A 1986: Induced seismicity around Aswan Lake (Abstr.). Tectonophys., 118, p. 281. Woodward-Clyde Consultants 1985: Earthquake activity and stability evaluation for the Aswan High Dam. Unpublished Report, High and Aswan Dam Authority, Ministry of Irrigation, Egypt