Microearthquakes in the north-west Nelson region, New Zealand
- 1 January 1975
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Geology and Geophysics
- Vol. 18 (1), 83-91
- https://doi.org/10.1080/00288306.1975.10426348
Abstract
Focal depths of microearthquakes indicate that seismicity in the north-west Nelson region is confined to depths less than about 15 km. This result provides a contrast with the Marlborough and Wellington regions where earthquake activity extends through the lower crust and well into the mantle. A composite focal mechanism implies current NW-SE compression in accord with results for shallow earthquakes in other parts of central New Zealand.Keywords
This publication has 4 references indexed in Scilit:
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- Frequency-magnitude, depth, and time relations for earthquakes in an island arc: North Island, New ZealandTectonophysics, 1974
- Detailed Seismicity of the Alpine Fault Zone and Fiordland Region, New ZealandGSA Bulletin, 1973
- Gravity, seismicity, and tectonics of the North Island, New ZealandNew Zealand Journal of Geology and Geophysics, 1970