New surveys of MacDonald Seamount, southcentral Pacific, following volcanoseismic activity, 1977‐1983

Jacques Talandier*, Emile A. Okal

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Macdonald Volcano, located at the younger end of the Austral Islands chain and discovered in 1967 from teleseismic T waves, has been the site of intense volcanoseismic swarms from 1977 to January, 1984. Three new surveys of its summit, including by scuba divers, have revealed pinnacles reaching 27 m b.s.l., and a variety of fresh features, such as fractures and spatter cones. It is strongly suggested that the summit of the volcano swelled and the pinnacles grew since Johnson’s last survey in 1975.

Original languageEnglish (US)
Pages (from-to)813-816
Number of pages4
JournalGeophysical Research Letters
Volume11
Issue number9
DOIs
StatePublished - Jan 1 1984

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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