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).
2007 Gisborne earthquake The 2007 Gisborne earthquake occurred under the Pacific Ocean about 50 km off the eastern coast of New Zealand's North Island at 8:55 pm NZDT on 20 December. The tremor had a Richter magnitude of 6.7 and maximum Mercalli intensity of VIII ("Severe"), and affected the city of Gisborne, but was felt widely across the country from Auckland in the north to Dunedin in the south.