Gisborne
Data kindly supplied by Eastland Port
| Time of arrival of first wave* | 18.1 h |
| Time of arrival of highest wave* | 83.6 h |
| Height of the highest wave | 389 mm |
| Period of the highest wave | 47 min |
* hours after the earthquake.
Commentary
The first waves arrived very early (18.1 h after EQ) compared to other sites, but the highest waves occurred a day later than other sites.
Figure 1. Sumatra tsunami at Gisborne showing:
A. long wave record;
B. height of each wave; and
C. period of each wave.
EQ denotes the time of the earthquake (12:59 on 26 December 2004, NZST),
TOA denotes time of arrival of first waves.
Figure 2. Sumatra tsunami at Gisborne showing:
A. long wave record;
B. significant (red) and maximum (blue) wave heights;
C. period of significant waves; and
D. distribution of significant wave height with time and period.
EQ denotes the time of the earthquake (12:59 on 26 December 2004, NZST).
How were these calculated?
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