A huge explosion in Ontario, CA was caused by a large amount of commercial grade fireworks that exploded in a residential house. The explosion was so big that it damaged multiple houses around the neighborhood and it killed 2 people.

https://twitter.com/Prudencepms/status/1371910566550274048?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1371910566550274048%7Ctwgr%5E%7Ctwcon%5Es1_&ref_url=https%3A%2F%2Fwww.usatoday.com%2Fstory%2Fnews%2Fnation%2F2021%2F03%2F16%2Fontario-california-explosion-fireworks-ignite-leads-evacuation%2F4723608001%2F

Source: USA Today, Twitter