Human perception of T waves: The June 22, 1977 Tonga earthquake felt on Tahiti
- 1 October 1979
- journal article
- Published by Seismological Society of America (SSA) in Bulletin of the Seismological Society of America
- Vol. 69 (5) , 1475-1486
- https://doi.org/10.1785/bssa0690051475
Abstract
We report human perception of seismic waves generated on the island of Tahiti by exceptionally large T waves, following a major earthquake in the Tonga area. The generation mechanism of the T waves and their smaller amplitudes at other Pacific stations are explained in relation to source and receiver bathymetry, focal mechanism, and magnitude of the event. It is concluded that a series of favorable path conditions, rather than the size of the event (Ms = 7.8; Mw = 8.1), were responsible for the giant T waves felt at Tahiti.Keywords
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