Samoa Tsunami at Wellington
| Time of arrival of first wave* | 9.4 h |
| Height of the first wave | 0.025 m |
| Time of arrival of highest wave* | 35.6 h |
| Height of the highest wave | 0.108 m |
| Period of the highest wave | 27.7 min |
* hours after the earthquake.
Commentary
The initial waves were tiny, but the waves that arrived about 36 h after the earthquake excited the 27 min seiche period of the harbour.
Figure 1. Samoa tsunami at Wellington 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 Wellington 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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