Palaeostress, Sesmicity and Plate Motion, Port Moresby and Adjacent Regions, Papua New Guinea

Organization: The Australasian Institute of Mining and Metallurgy
Pages: 2
Publication Date: Jan 1, 1997
Palaeostress analyses of the northeast-dipping Koki Fault Zone demonstrates in the hanging wall an east-west compressive stress and sinistral reverse-slip. Data from the footwall region are more uncertain and may relate to rotation of the stress field during fault motion. The fault-plane solution of the 1979 Port Moresby earthquake (Modified Mercalli Intensity 5-7 at epicentre 70 km east of Port Moresby) shows east-west compression and a stress field identi
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