Outburst monitoring using microseismic techniques in the Phalen Colliery, Sydney, Nova Scotia, Canada
by S. Talebi and P. Mottahed
Sudbury Laboratory, CANMET, Sudbury, Ontario, Canada
G.R. Corbett
Cape Breton Coal Research Laboratory, CAMNET, Sydney, Nova Scotia, Canada

The Sydney Coal field in Nova Scotia has experienced outburst activities since the late 70's and early 80's. The reported cases of outburst in this field are described as resulting from the ejection of finely pulverized sandstone into the openings. An "intrinsically safe" portable microseismic monitoring system, designed for the Sydney Coal field, was installed in Phalen Colliery at a depth of 695 m. The results of several months of monitoring showed the possibility of detecting different sources and their distinction from their seismic signals. Of particular interest is an outburst recorded in September 94 which we describe in this paper.

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