This one happened to be attached to a 1,000 lb bomb. The JDAM that whacked Zarkman was on a 500 lb casing.
The impressive aspect of this hot to me was that it was done at well above the speed of sound (Mach 1.5), from an altitute of 9 1/2 miles, and at a stand-off distance of 24 miles. Anyone near the target would have had no idea that any aircraft was anywhere in the vicinity. Just...BOOM!
You echo my amazement. All they would hear would be, what...a "whoosh" just before impact?