I was wondering that last night after it happened. I still am. I have a gut feeling that this is not the end of it, be it a month or more in the future, we could see something else result from the added pressure.
As far as the tsunami, Hawaii is (or what most of us think of Hawaii, from the Big Island west to - what? Kauai?) is a small target so it could have rolled slightly to the east and that's open water, perhaps making it easily missed? All good in the end, but if a malfunction, then it's a worry.
Stay safe.
Beth