Well, I woke up at 0315 and took this photo of Waikiki Beach:
Then at 0330:
I couldn't detect any change, but was amazed at the how well the photo came out, for it was mostly dark.
I went back to sleep, but at around 4PM I was awakened to what sounded like a trash can banging around, so with some trepidation, I carefully walked to the lanai…and saw nothing exceptional. It turned out, though, that the highest wave of about a foot came around 4PM. As I re-post this at 7AM on Wednesday, April 2, there remains a tsunami alert for Hawaii. Some beaches are closed on all the islands and people are advised not to enter the sea, as conditions remain unpredictable However, the surfers are out there: