don't know
can it intercept before hitting Tokyo?
"At about noon Hawaii time -- 6 p.m. Eastern Daylight Time -- a target missile was launched from the Pacific Missile Range Facility at Barking Sands on Kauai. USS Shiloh's Aegis Ballistic Missile Defense 3.6 Weapon System detected and tracked the target and "developed a fire control solution," officials said. About four minutes later, the USS Shiloh's crew fired the SM-3, and two minutes later the missile intercepted the target warhead outside the Earth's atmosphere, more than 100 miles above the Pacific Ocean and 250 miles northwest of Kauai."
looking at Microsoft's virtual earth map, the distance from N.Korea to Japan appears to be approx 700 miles. since the test missle intercepted the target warhead 250 miles from its origin and 100 miles high, i assume the answer is clearly yes. if the N.Koreas were trying to hit Hawaii, i assume they would need a higher trajectory than if they were trying to hit Japan (in a worse case scenario versus just flying over Japan as a test like last time). a lower trajectory might be more difficult but there are still a few hundred miles available (700-250=450 mi margin of safety?) just a guess.
very impressive. peace through strength!