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f Observations of shear-wave splitting from mining induced stress-failures
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 53rd EAEG Meeting, May 1991, cp-42-00164
- ISBN: 978-90-73781-03-0
Abstract
Local networks operated in the gold mines of South Africa record mining-induced events with local magnitude as low as -4 (Legge and Spottiswoode 1987) and occasionally exceeding 5 on the Richter scale. Nearly all events of magnitude 2 and above are also recorded and located by the National Seismological Network of the South African Geological Survey (Femandez and Du PIessis 1988).