In Australia, South of Gladstone, in Sept 2014 a road train carrying 52 tons of ammonium nitrate crashed near the Angellala creek, set off a massive explosion, destroyed 2 bridges, and registered 2.1 on the Richter scale

https://www.business.qld.gov.au/industries/mining-energy-water/explosives-fireworks/safety-security/significant-incident-reports/angellala-creek