An explosion involving illegally stored mining detonators in Petlawad, India, killed 104 people and injured more than 150 others. Petlawad explosion: On the morning of 12 September 2015, an explosion in the town of Petlawad of the Jhabua district in the state of Madhya Pradesh of India killed 104 people. The cause of the explosion was attributed to illegally stored explosives that detonated, along with a cooking gas cylinder. September 12, 2015. Wiki link