New Zealand seismological report 1993

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SR_2006-015-pdf
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Maunder, D.E. (ed.); Cowan, L. 2006 New Zealand seismological report 1993. Lower Hutt, N.Z.: GNS Science. GNS Science report 2006/15; Seismological Observatory bulletin E 184 194 p.

Abstract: The form of this report follows lines established in recent years. The main list of regional shocks contains only earthquakes of magnitude 3.5 or greater located within 10o of Wellington, and smaller earthquakes known to have been felt in New Zealand. Many other earthquakes have however been assigned serial numbers, so the serial numbers of the shocks listed are often not consecutive. Phase data are not published here, but are instead sent to the International Seismological Centre, and appear in their bulletins, which constitute the only medium currently in use for routine reporting of arrival time observations made in New Zealand. The lists of origin coordinates and magnitudes include sufficient supplementary information for assessment of the quality of the data on which they are based. There is also a list of origins of earthquakes in the Wellington area with magnitudes of 2.0 or more. This list gives less information on the quality of individual determinations, but the density of recording stations in the area, and their easy accessibility for maintenance ensure that errors are small. (auth)