Matsumoto sarin gas attack
Historical term referring to the sarin gas attack that occurred in Matsumoto, Nagano Prefecture, on June 27–28, 1994.
The Matsumoto sarin gas attack is considered the first large-scale chemical terrorism by Aum Shinrikyo.
Refers to the Tokyo subway sarin attack in 1995, a related but separate incident also carried out by Aum Shinrikyo.
Named after the city of Matsumoto (松本) where the attack took place, combined with サリン (sarin) and 事件 (incident).