The Popayán earthquake of 1983 was a highly destructive, high mortality event (mb = 5.5). It was probably caused by the rupture of the Pubenza fault, a NNW-trending feature mapped on the basis of cracks in pavements and breaks in underground water pipes. Significant damage to modern construction was confined to an area within 1 km of the fault trace in the urban area. Near-field observations of upthrow and other effects suggest that the earthquake featured a high-amplitude pulse of the order of 1 g in the vicinity of the fault trace. Losses were of the order of $500 million.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not currently have access to this article.