The explosion was heard in West Norman which is about 12-15 miles away.
West Norman is a lot farther than 12-15 miles away. Do you live in this area?
I live in East Norman which is closer and yet we are not that close to the site and unlike the explosives that were blown up after the suicide bomber that rattled my front window, I heard nothing and I am about 4-5 miles closer than West Norman.