From about an hour ago,minute by minute buoy elevation readings. Buoy off Hilo, last column is in meters.
The waves may be slow enough that Waikiki doesn’t see it, but out at sea or maybe some single mid Pacific islands need to evacuate about to 40m above sea level.
2012 10 28 07 10 00 2 4737.670
2012 10 28 07 09 00 2 4737.669
2012 10 28 07 08 00 2 4737.668
2012 10 28 07 07 00 2 4705.059
2012 10 28 07 06 00 2 4737.666
2012 10 28 07 05 00 2 4737.665
2012 10 28 07 04 00 2 4769.232
2012 10 28 07 03 00 2 4737.662
2012 10 28 07 02 00 2 4737.661
2012 10 28 07 01 00 2 4766.621
2012 10 28 07 00 00 2 4737.658
2012 10 28 06 59 00 2 4737.658
from http://www.ndbc.noaa.gov/station_page.php?station=51407&type=2&seriestime=20121028032430
Pardon me, the above datum is from a buoy about 50km west of Kailaoa (not Hilo).
The buoys definitely indicate a difference of some 64meters in water column in that 4 minute interval