4 ms·
According to the experience in Halifax explosion, a blast wave travels at 1000 m/s; so you get 15 seconds if the blast happens 10 miles away from you.
by BerislavLopac 8y ago
According to the experience in Halifax explosion, a blast wave travels at 1000 m/s; so you get 15 seconds if the blast happens 10 miles away from you.
- SideburnsOfDoom 8y agoGood to know. In the unlikely event etc, I'll give it 20 seconds or so then.