The primary tectonic feature near Samoa is the northernmost extent of the Tonga Trench where the Pacific plate is being subducted beneath the Australian plate. The trench strikes south-southeast between New Zealand and Samoa, then turns sharply to the west. Its close proximity makes the Samoan Islands prone to tsunami that are generated during subduction events.[1]

Earthquakes

Date Region Coords Mag. MMI Deaths Injuries Comments
2009-09-29 15°31′S 172°02′W / 15.52°S 172.03°W / -15.52; -172.03 8.1 Mw 189 Hundreds Moderate tsunami
1977-04-02 16°42′S 172°06′W / 16.7°S 172.1°W / -16.7; -172.1 7.6 Ms VI Limited damage / tsunami [2]
1917-06-25 15°05′S 173°00′W / 15.08°S 173°W / -15.08; -173 8.5 Mw Large tsunami
Note: The inclusion criteria for adding events are based on WikiProject Earthquakes' notability guideline that was developed for stand alone articles. The principles described also apply to lists. In summary, only damaging, injurious, or deadly events should be recorded.

See also

References

  1. ^ Yeats, R. (2012), Active Faults of the World, Cambridge University Press, pp. 479, 280, ISBN 978-0521190855
  2. ^ NGDC (1972), Significant Earthquake Database (Data Set), National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K
Allikas: https://en.wikipedia.org/wiki/List_of_earthquakes_in_Samoa
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