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The source of the T phase recorded in the eastern Caribbean on October 24, 1965

SEISMIC RESEARCH UNIT, UNIVERSITY OF THE WEST INDIES,, TRINIDAD. W. I.

Abstract

A high-frequency disturbance lasting for about twenty minutes was recorded at several seismograph stations in the eastern Caribbean on October 24, 1965.

The disturbance was propagated to the seismograph stations north of the island of St. Vincent as T phase from a source which is shown to be the submarine volcano ‘Kick-'em-Jenny.’ It is suggested that the T phase was generated by collapsing steam bubbles generated during an eruption of the volcano. The total volume of steam required to generate the observed seismic energy is estimated conservatively to be 6 x 10⁸ cm³. A remarkable feature of the disturbance are the reports that it was felt at MM intensity III in St. Vincent which is 90 km from the source and at intensity II at a few places in Martinique which is 250 km from the source.

This article has been cited by other articles:

				M. S. Smith and J. B. Shepherd Tsunami waves generated by volcanic landslides: an assessment of the hazard associated with Kick 'em Jenny Geological Society, London, Special Publications, January 1, 1996; 110(1): 115 - 123. [Abstract] [PDF]

				W. P. Aspinall, W. P. Aspinall, H. Sigurdsson, and J. B. Shepherd Eruption of Soufriere Volcano on St. Vincent Island, 1971-1972 Science, July 13, 1973; 181(4095): 117 - 124. [Abstract] [PDF]

				R. H. Johnson and R. H. Johnson Active Submarine Volcanism in the Austral Islands Science, February 13, 1970; 167(3920): 977 - 979. [Abstract] [PDF]

				J. NORTHROP Comments on a paper by J. B. Shepherd and G. R. Robson, the source of the T phase recorded in the eastern Caribbean on October 24, 1965 Bulletin of the Seismological Society of America, April 1, 1968; 58(2): 743 - 744. [PDF]