Rock fall shakes Gwalia production

A ROCKFALL on September 8 at St Barbara’s Gwalia underground gold mine near Leinster in Western Australia’s Eastern Goldfields has cost it about 8000 ounces of production for the first quarter of 2020-21.

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The rock fall was discovered in the Hoover decline.

St Barbara told the Australian Securities Exchange that a large firing led to a number of seismic events with the largest measuring +1.9 local magnitude.

No personnel were underground at time.