Canterbury Earthquake: Aftershock Locations

The map below was sent to me by my colleague Lawrence Hill from the Agricultural Management and Property Department at Lincoln University.  The map was constructed by Lawrence on 7 September 2010.  The axes are latitude and longitude.   The map locates the first 113 aftershocks.

A ‘brave’ interpretation of the line (calculated as the least squares line) is that it might approximate the fault line. The logic of such an interpretation is  that the aftershocks are likely to be evenly spread about the major fault line. But that may prove to be a brave interpetation. My prior assumption had been that the fault would lie parallel rather than at right angles  to the major Alpine Fault.

Does anyone have a map showing the actual fault line?

 For a larger picture, click on the map.

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About Keith Woodford

Keith Woodford is an independent consultant, based in New Zealand, who works internationally on agri-food systems and rural development projects. He holds honorary positions as Professor of Agri-Food Systems at Lincoln University, New Zealand, and as Senior Research Fellow at the Contemporary China Research Centre at Victoria University, Wellington.
This entry was posted in Canterbury Earthquake, Outdoors with nature. Bookmark the permalink.

2 Responses to Canterbury Earthquake: Aftershock Locations

  1. Craig Osborne says:

    Keith,
    Just wanted to say how much I’ve enjoyed reading your posts on the silt volcanoes and this one analysing the earthquake locations.

  2. Annette Luxon says:

    Hi Keith, We were talking to the jeweller in Akaroa today who said that the men who run the dolphin boats had said that there is a lot of damage outside the harbour and that the seabed has altered. May be of interest. I have found your posts interesting too.

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