Is there any information on the height of waves near New Zealand resulting from today's M 8.1 Kermadec Islands earthquake?
Norfolk Island experienced a tsunami wave 64 cm tall. In Australia the tsunami wave was 10 cm at Tweed Heads and 9 cm at Port Kembla. In Vanuatu the height was 32 cm and in Fiji 13 cm  and 8 cm in Tonga.
Australian Burea of Meteorology report
TSUNAMI DETAILS:
The following sea level gauges have observed a tsunami, heights refer to wave
amplitudes (positive wave values):
Name                  Country       Lat     Lon      Height (m)  Time (UTC)
East Cape             NEW ZEALAND   37.50S  178.17E  0.15        04 MAR 2210
Nuku'Alofa            TONGA         21.10S  175.20W  0.06        04 MAR 2115
Suva Viti Levu        FIJI          18.10S  178.42E  0.13        04 MAR 2200
Rarotonga Wharf       COOK ISLAND   21.20S  159.79W  0.08        04 MAR 2200
Kaingaroa Chatham Is  PACIFIC OCEA  43.70S  176.27W  0.22        04 MAR 2320
Norfolk Island.       AUSTRALIA     29.10S  167.95E  0.64        04 MAR 2245
Port Villa            VANUATU       17.80S  168.31E  0.32        04 MAR 2320
Ouinne                NEW CALEDONI  22.00S  166.83E  0.2         04 MAR 2320
Tubuai                FRENCH POLYN  23.30S  149.48W  0.06        04 MAR 2305
Port Kembla           AUSTRALIA     34.50S  151.00E  0.15        05 MAR 0205
Mare                  NEW CALEDONI                   0.15        04 MAR 2330
North Cape            NEW ZEALAND                    0.15        04 MAR 2130
Great Barrier Island  NEW ZEALAND                    0.20        04 MAR 2240

See also [1], [2] &amp; [3]