MEHAU KULYK / SCIENCE PHOTO LIBRARY MEHAU KULYK / SCIENCE PHOTO LIBRARY
Relationship between earthquakes and tectonic plate boundaries. Computer-enhanced global map showing the distribution (in red) of earthquakes of magnitude 5.5 or greater and depths of less than 50 kilometres in the period 1963-1987. This view shows the Americas. The earthquake centres correlate very well with oceanic plate margins, particularly on the west coast of the Americas and around Africa. On land tectonic margins, for example, those north of India in the Himalayas and in the African Rift Valleys (not visible in this image), the correlation is less evident. Original map data from the National Earthquake Information Centre, published on page 335 of Science vol. April 1992.
Model release not required. Property release not required.