Otway, P.M.; Wood, P.R. 1973 Survey report - Whataroa 1973. Lower Hutt: New Zealand Geological Survey. New Zealand Geological Survey report EDS 19 21 p.
Abstract: This survey was the first resurvey of the earth deformation pattern installed and initially surveyed between March 22 and 25 1972. A full description of the site, pattern and method of the survey operation and computation is contained in earlier reports (Blick, EDS 8, 1972 and Otway, EDS 16, 1973). The following is a summary of the field and office procedure.