The Westray Mine Disaster occurred on May 9, 1992, in Pictou County, Nova Scotia, Canada. An explosion in the coal mine resulted in the deaths of 26 miners, making it one of the deadliest mining accidents in Canadian history. The explosion was caused by a buildup of methane gas and coal dust, which ignited due to unsafe working conditions. Following the disaster, investigations revealed serious safety violations and inadequate regulations. The incident led to significant changes in mining safety laws in Canada, emphasizing the importance of worker protection and accountability. The tragedy remains a pivotal moment in the history of mining safety reforms.