Mount Ontake in central Japan unexpectedly erupted, killing 63 people in the nation's deadliest eruption in more than 100 years. 2014 Mount Ontake eruption: The Mount Ontake volcano erupted on September 27, 2014, killing 63 people. Mount Ontake is located on the Japanese island of Honshu around 100 kilometres (62 mi) northeast of Nagoya and around 200 km (120 mi) west of Tokyo. It was the first fatal volcanic eruption in Japan since the 1991 eruption of Mount Unzen, and the deadliest volcanic eruption in Japan since Torishima killed an estimated 150 people in 1902. September 27, 2014. Wiki link