Evolution of rockburst control in the Coeur d'Alene district over the past 50 years.

The article defines rockburst as a sudden failure of overstressed rock, releasing energy and broken rock into nearby excavations. Topics include the historical context of rockbursts in the Coeur d'Alene district, where mining has caused fatalities, particularly during the 1980s. It also discusses advancements in mining methods, such as the shift to underhand longwall mining and the introduction of destress blasting techniques to mitigate the risk of seismic events in deep mines.