Story: Historic earthquakes

Extent of shaking, Edgecumbe earthquake, 2 March 1987 (1st of 2)

The Modified Mercalli scale (from 1 to 12) measures earthquakes by the intensity of shaking observed. This map shows the regional variation in shaking from the Edgecumbe earthquake. Maximum shaking intensity of 9 was felt close to the epicentre. Compared to some New Zealand earthquakes, this was relatively small, but it caused considerable industrial damage around Kawerau.

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Source: G. L. Downes, Atlas of isoseismal maps of New Zealand earthquakes. Lower Hutt: Institute of Geological and Nuclear Sciences, 1995.

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How to cite this page:

Eileen McSaveney, 'Historic earthquakes - The 1987 Edgecumbe earthquake', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/interactive/4532/extent-of-shaking-edgecumbe-earthquake-2-march-1987 (accessed 7 June 2020)

Story by Eileen McSaveney, published 12 Jun 2006, reviewed & revised 28 Mar 2011, updated 1 Nov 2017