Models for the hotspot distribution

Donna M Jurdy*, Michael Stefanick

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Published hotspot catalogues all show a hemispheric concentration beyond what can be expected by chance. Cumulative distributions about the center of concentration are described by a power law with a fractal dimension closer to 1 than 2. Random sets of the corresponding sizes do not show this effect. A simple shift of the random sets away from a point would produce distributions similar to those of hotspot sets. The possible relation of the hotspots to the locations of ridges and subduction zones is tested using large sets of randomly‐generated points to estimate areas within given distances of the plate boundaries. The probability of finding the observed number of hotspots within 10° of the ridges is about what is expected.

Original languageEnglish (US)
Pages (from-to)1965-1968
Number of pages4
JournalGeophysical Research Letters
Issue number11
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)


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