What event measured a 5.6 on the Richter magnitude scale and led to the establishment of the New South Wales Urban Search and Rescue Task Force 1?
1989 Newcastle earthquake The 1989 Newcastle earthquake occurred in Newcastle, New South Wales on Thursday, 28 December. The shock measured 5.6 on the Richter magnitude scale and was one of Australia's most serious natural disasters, killing 13 people and injuring more than 160. The damage bill has been estimated at A$ 4 billion (including an insured loss of about $1 billion).
1981 Golbaf earthquake The 1981 Golbaf earthquake occurred on June 11 at with a moment magnitude of 6.6 and a maximum Mercalli intensity of VIII+ ("Severe"). Total damage was considered moderate and amounted to $5 million in financial losses, with many injured, and 1,400–3,000 killed.