Quantifying potential tsunami hazard in the Puysegur subduction zone, south of New Zealand
Article first published online: 22 OCT 2010
No claim to original US government works Geophysical Journal International © 2010 RAS
Geophysical Journal International
Volume 183, Issue 3, pages 1512–1524, December 2010
How to Cite
Hayes, G. P. and Furlong, K. P. (2010), Quantifying potential tsunami hazard in the Puysegur subduction zone, south of New Zealand. Geophysical Journal International, 183: 1512–1524. doi: 10.1111/j.1365-246X.2010.04808.x
- Issue published online: 15 NOV 2010
- Article first published online: 22 OCT 2010
- Accepted 2010 September 10. Received 2010 September 4; in original form 2010 June 25
Figure S1. Conditions for slip partitioning along the Australia--Pacific Plate boundary through South Island, NZ. Plate motions (AUS, Australia; PAC, Pacific) are determined using the finite pole for anomaly 2Ay-present (~2.58--0 Ma; Cande & Stock 2004). For the Alpine Fault location, Westland Terrain (WT) represents the region immediately east of the Alpine Fault. At that location slip partitioning is accomplished through deformation of the PAC Plate---for example shortening in the Southern Alps. Along the Fiordland segment of the plate boundary (FTT, Fiordland Trench Terrain, MS, Milford Sound), two possible slip-partitioning cases are shown. In both cases, motion along the Alpine fault segment is approximately 30 mm yr-1 (Barnes et al. 2005).
Figure S2. Surface deformation caused by the 2009 July 15 earthquake: (a) Horizontal and (b) vertical deformation, resulting from coseismic slip during the 2009 July 15 New Zealand earthquake (Fig. 3). The earthquake epicentre is marked with a red star. The black rectangle is the fault area of modelled coseismic slip, and the green rectangle outlines the area of major slip from Fig. 3. The AUS: PAC plate boundary is shown in red. Grey triangles mark the locations of three nearby GPS monuments of the permanent GNS Geonet network. In (a), black arrows indicate the scale and direction of horizontal deformation. In (b), colours describe surface uplift resulting from the earthquake: red = positive, blue = negative, contoured every 0.2 m.
Supplement. Details of historic tsunamis in southwest New Zealand, conditions for slip partitioning along the current plate boundary system, and surface deformation caused by the 2009 July 15 earthquake.
Movie. QuickTime animation of tsunami propagation through the Tasman Sea, based on our scenario earthquake model (Section 5).
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