2021 July house fire in Plainfield Michigan had a 100 pound propane tank in the garage. The tank would have been one of the 3 or 4 foot tall ones about twice as tall as a "bar-b-que tank".
Video shows the explosion.
https://www.youtube.com/watch?v=I_soWPp4M7I
I'm sure they thought that the tank in the garage was perfectly safe.
Passing paper delivery person spotted the fire and woke them at 4 am.
They got out of the house 5 minutes before the tank blew.