1997 Collier Bay WA, Australia, MW 6.3, 10 August 1997 image sources: Wayne Peck and Owen McConnel; courtesy: Peter Gregson Damage to footings of Cockatoo Island house Damage to footings of Cockatoo Island house Damage to footings of Cockatoo Island house House on Cockatoo Island, about 100km from the epicentre Damage to footings of Cockatoo Island house Damage to footings of Cockatoo Island house Iron rich terrain surrounding Collier Bay Aftershock location using network data Preliminary isoseismal map of main shock Location of main shock and aftershock network 1989 Newcastle 1988 Tennant Creek