by Powowclouds » Sat May 18, 2013 5:38 pm
As for my occurrence, i was actually trying to make the cave in happen.. I was able to mine a considerable amount just taking one section from each side of the mine. When i started to dig more than one full wall on each side is when it happened. I actually had plenty of support material in back up, so I could've prevented the incident, and would've knowing that it was going to blow up three chests and cover a third of my mine with rubble. I am glad that I learned that lesson though, as there are supports going up way ahead of time now.
P.s. It appears that metal chests are safe from the explosion, as I had two in the range that didnt go, that might just be luck also though.