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Earthquake in New Zealand From Wikipedia, the free encyclopedia
The 2007 Gisborne earthquake occurred under the Pacific Ocean about 50 kilometres (31 mi) off the eastern coast of New Zealand's North Island at 8:55 pm NZDT on 20 December. With a moment magnitude of 6.7 and maximum Mercalli intensity of VII (Very Strong), the tremor affected the city of Gisborne and was felt widely throughout the country, from Auckland in the north to Dunedin in the south.[1]
UTC time | 2007-12-20 07:55:15 |
---|---|
ISC event | 13293317 |
USGS-ANSS | ComCat |
Local date | 20 December 2007 |
Local time | 8:55 pm NZDT (UTC+13) |
Magnitude | 6.7 Mw[1] |
Depth | 33 km (21 mi) |
Epicentre | 38.89°S 178.54°E |
Areas affected | New Zealand |
Max. intensity | MMI VII (Very strong) |
Peak acceleration | 0.28 g |
Casualties | 1 dead, 11 injured |
New Zealand lies along the boundary between the Indo-Australian Plate and Pacific Plate.
The earthquake occurred at 8:55 pm on 20 December 2007 off the coast of Gisborne, at a depth of about 40 kilometres. Shaking mostly affected Gisborne, but was felt throughout the country, from Auckland to Dunedin. Small appliances or furniture slipped or fell as far south as Wellington.[1]
While the earthquake was initially reported to have caused no deaths, an elderly woman in Gisborne suffered a heart attack and died shortly after the quake.[3] A number of buildings in central Gisborne were damaged and had their roofs cave in. The central business district was closed off to allow building inspectors to assess buildings for damage; three buildings had collapsed. Gisborne's standby sewage system was activated. There were power outages immediately after the earthquake hit.[4] Temporary problems with phone, water and gas lines also occurred.[5][4] The town clock stopped at 8:55 pm.[6] The Earthquake Commission had received over 6,200 insurance claims costing a total of about $25 million, the biggest number since the 1987 Edgecumbe earthquake.[7] It was earlier estimated that the cost of damage caused by the earthquake could rise to $30 million.[8]
The National Crisis Management Centre was activated after the earthquake struck.[4]
Liquefaction occurred near the Waipaoa River, and there was an increased activity in nearby mud volcanoes.[9]
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