1. Fault Dynamics Research Group, Department of Earth Sciences; Royal Holloway, University of London; Egham UK
2. Now at ConocoPhillips; 600 North Dairy Ashford, OF3064 Houston Texas 77079 USA
3. Now at Alfred Wegener Institute for Polar and Marine Research; Bremerhaven Germany
4. Now at Department of Earth and Environmental Sciences; University of Rochester; Rochester New York USA
5. Petroleum and Marine Division; Geoscience Australia; Canberra Australia