New Zealand. Blast Traps MinersIn Australasia, News Headlines, Videos Video Report: An explosion at the Pike River coal mine has left more than 30 workers unaccounted for on New Zealand’s South Island. It is not known if Methane Gas was to blame. Share Tweet Topics: Methane Gas Methane Hydrate New Zealand Mine Disaster New Zealand. Blast Traps Miners redsky Leave a reply: Cancel ReplyYour email address will not be published.