Near the end, right after a commercial, we see a brief shot of a beach, deserted since everyone was forced to evacuate because of the tsunami warning. But none of the beach chairs got knocked over and all the towels are still reasonably positioned. It looks like everyone just calmly walked away.
After Danny drives the forklift through the garage door, and McGarrett and Kono shoot the kidnapper, you see "Danny" inside the forklift. Danny has his sleeved rolled to mid-forearm and is wearing light blue denim jeans. When Danny gets out of the forklift, his sleeves are rolled to his elbows and he is wearing khaki pants.
At around 16:59, there's a shot of a ship underway. On-screen text states it's the USS Enterprise. Not only is it not the Enterprise, it's not even a U.S. Warship.