eprintid: 1597
rev_number: 9
eprint_status: archive
userid: 2
dir: disk0/00/00/15/97
datestamp: 2015-09-24 12:10:13
lastmod: 2018-03-28 09:16:36
status_changed: 2015-09-24 12:10:13
type: article
metadata_visibility: show
creators_name: Awad, Hassoup
creators_name: Kwiatek, Grzegorz
creators_id: kwiatek@gfz-potsdam.de
corp_creators: National Research Institute of Astronomy and Geophysics, Egipt
corp_creators: Institute of Geophysics, Polish Academy of Science
title: Focal mechanism of earthquakes from the June 1987 swarm in Aswan, Egypt, calculated by the moment tensor inversion
subjects: MP1
divisions: EPOS-P
full_text_status: none
abstract: We obtained seismic moment tensor solutions of ten events from the June 
1987 earthquake swarm, which occurred along the Kalabsha fault zone in the northern part of the Lake Aswan area in Egypt. In addition, the composite fault plane solution of this sequence was also calculated. The waveform data were obtained from the Aswan seismological network, which consists of 13 field stations with short period seismometers GS-13. 
The June 1987 swarm was a sequence of microearthquakes (M ≤ 3.4), shallow (0-10 km) events forming two successive bursts, which took place on June 17 and 19.  The moment tensor solutions indicate th at the focal mechanisms of events from this swarm sequence are expressed by 
right-lateral strike slip faults. They represent also an effective 
east-west compressional stress field acting in the area. Geological and geophysical data demonstrate that the Kalabsha fault zone is a 
right-lateral strike slip fault that consists of several fault segments trending in the  east-west direction, perpendicular to the axis of the main course of the Lake As-wan. Thus, the focal mechanisms of the 1987 events are consistent with the local tectonics of the area.
date: 2005-09
date_type: published
publication: Acta Geophysica Polonica
volume: 53
number: 3
publisher: Polish Academy of Science
pagerange: 275-291
issn: 1895-6572
access_IS-EPOS: limited
software_references: Moment_tensor_Inversion
owner: Publisher
citation:   Awad, Hassoup and Kwiatek, Grzegorz  (2005) Focal mechanism of earthquakes from the June 1987 swarm in Aswan, Egypt, calculated by the moment tensor inversion.  Acta Geophysica Polonica, 53 (3).  pp. 275-291.