Samoa Tsunami at Waitemata Harbour
| Time of arrival of first wave* | 7.2 h |
| Height of the first wave | 0.017 m |
| Time of arrival of highest wave* | 8.8 h |
| Height of the highest wave | 0.34 m |
| Period of the highest wave | 14.0 min |
* hours after the earthquake.
Commentary
Waitemata Harbour is protected by the islands in the Hauraki Gulf, so the waves were small.
Figure 1. Samoa tsunami at Waitemata Harbour showing:
A. long wave record, denoised to remove spurious waves;
B. height of each wave; and
C. period of each wave.
EQ denotes the time of the earthquake (17:48 on 29 Sep 2009, UTC).
Figure 2. Samoa tsunami at Waitemata Harbour showing:
A. raw long wave record;
B. distribution of significant wave height with time and period.
EQ denotes the time of the earthquake (17:48 on 29 Sep 2009, UTC).
How were these calculated?
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