On April 25, 2006, 9.30pm, Todd Russell, Brant Webb, Larry Knight and 14 other miners were almost a kilometre underground at the Beaconsfield goldmine in Tasmania when the earth began to move. A minor seismic event, measuring just 2.2 on the Richter scale, triggered a rock fall, killing Knight and leaving Russell and Webb trapped.
The Beaconsfield incident was a tragedy. Fortunately, Russell, Webb and 14 other miners survived, and advances in mining technology and supporting information technology systems played an important part in their escape.