2011 christchurch earthquake facts
Image from Richard Jongens, Christchurch quake map link, from Paul Nicholls - University of Canterbury, GNS site - learning about earthquakes info. Read more about the 2011 Christchurch earthquake on NZHistory. The earthquake was caused by the two plates being forced together for a long time. The earthquake occurred more than five months after the 4 September 2010 earthquake, but is considered to be an aftershock of the earlier quake. Among the modern buildings damaged, and eventually demolished, was Christchurch’s tallest building, the Hotel Grand Chancellor. Many heritage buildings were heavily damaged, including the Provincial Council Chambers, Lyttelton’s Timeball Station, and both the Anglican Christchurch Cathedral and the Catholic Cathedral of the Blessed Sacrament. Scientists find rare mix of factors exacerbated Christchurch quake. Buildings have collapsed around Cathedral Square in downtown Christchurch. © Crown Copyright. / Recent Events In the early hours of Saturday morning on 4 September 2010, people in Christchurch and the surrounding Canterbury region were jolted awake by the most damaging earthquake in New Zealand since the deadly magnitude 7.8 Hawke's Bay (Napier) earthquake in 1931. Christchurch Earthquake Case Study. Aftershocks, 22 February 2011 to 11 February 2012, Flickr exhibition: earthquake damage in Christchurch, February 2011, Roadside Stories: Christchurch under siege. 4, December 2011 'Review of the Civil Defence Emergency Management Response to the 22 February Christchurch Earthquake', Civil Defence . This was the second major earthquake to hit the city; the previous quake occurred on 4 September 2010 and registered at a 7.1 magnitude. GNS seismologist Bill Fry explains the February 2011 aftershocks in Christchurch. GNS Science disaster researcher Julia Becker blogs about her experiences in Canterbury. It was lunchtime and many people were on the city streets. Despite the damage to homes, there were few serious injuries in residential houses in liquefaction areas. Youtube - 70mins, Graphic shows two main Christchurch fault ruptures - 06/09/2011. … Around 30 million tonnes of ice fell off Tasman Glacier into … The fault slopes southward beneath the Port Hills and did not break the surface – scientists used instrument measurements to determine its location and movement. GNS Science has started issuing a daily graphic showing the probability of strong earthquake shaking in the mid part of the South Island between Cheviot and Timaru and across to the west coast. One hundred and eighty five people died as a result of the 22 February earthquake. Eileen McSaveney, 'Historic earthquakes - The 2011 Christchurch earthquake', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/historic-earthquakes/page-13 (accessed 20 October 2020), Story by Eileen McSaveney, published 12 Jun 2006, reviewed & revised 28 Mar 2011, updated 1 Nov 2017. At the time it was still recovering from the effects of a 7.1-magnitude earthquake on 4 September 2010.Though smaller than the first quake, and technically part of its aftershock sequence, the February earthquake was more destructive. (Read more in the press release). Timaru’s population swelled by 20% and thousands of pupils registered at schools in other cities and towns. Martin Reyners offers new information about the September 2010 quake, Martin Reyners talking about the Canterbury Earthquakes in depth. On Tuesday 22 February 2011 at 12.51 p.m. Christchurch was badly damaged by a magnitude 6.3 earthquake, which killed 185 people and injured several thousand. Buildings have collapsed around Cathedral Square in downtown Christchurch. House foundations cracked and buckled, wrecking many homes. On the 22nd of February 2011, 12:51 pm a catastrophic earthquake hit Christchurch, New Zealand. Build your own animated earthquake mapIf you have Google Earth, download our KML file. The earthquake brought down many buildings previously damaged in the September 2010 earthquake, especially older brick and mortar buildings. 6.3 magnitude earthquake part of aftershock sequence February the 22nd's devastating magnitude 6.3 earthquake centred southeast of Christchurch was part of the aftershock sequence that has been occurring since the September magnitude 7.1 quake near Darfield, 40km west of the city, an earthquake geologist said today. Luck played a part-the quake occurred at a time when everyone was home in bed and the streets were largely deserted. At 12.51 p.m. on 22 February 2011, the Canterbury region was struck by a magnitude 6.3 earthquake. Christchurch’s central business district remained cordoned off for more than two years after the earthquake. This was the second major earthquake to hit the city; the previous quake occurred on 4 September 2010 and registered at a 7.1 magnitude. Due to the shallow depth and the nearby metropolitan city of Christchurch, this earthquake became a tragedy for a lot of people. However, the lack of casualties was mainly due to New Zealand's strict building codes, which aim to ensure that buildings do not become deathtraps in a major quake. / Canterbury quake. Help us collect information about the effect of the earthquake on Canterbury groundwater and irrigation supply, Youtube montage flyover of Canterbury fault trace, GNS Science seismologist Matt Gerstenberger talks to Radio New Zealand about Canterbury's earthquake risk: download the. Liquefaction was much more extensive than in the September 2010 earthquake. A new video with Martin Reyners talking about the "Slap-down" effect with the Christchurch earthquake. At 12.51 p.m. on Tuesday 22 February 2011, a magnitude 6.3 earthquake caused severe damage in Christchurch and Lyttelton, killing 185 people and injuring several thousand. / Natural Hazards and Risks Satellite radar resultsSee the latest satellite radar results for the Darfield quake. Measuring 6.3 on the Richter Scale and, at 4.99 km deep, the earthquake was very shallow. The earthquake caused widespread damage across Christchurch, killing 185 people in the nation's fifth-deadliest disaster. Learn more about the shaking, liquefaction, aftershocks and how the fault was found - here. Eastern sections of the city were built on a former swamp. A documentary with interviews from some of our scientists talking about the earthquake. Several aftershocks were reported, some registering at a 5.6 magnitude. The New Zealand defence forces have been called in to help move people out of the central business district.Fires were reported at the Canterbury Television (CTV) … / Our Science The earthquake’s epicentre was near Lyttelton, just 10 km south-east of Christchurch’s central business district. GNS seismologist Matt Gerstenberger describes earthquake probabilities and forecasting on Youtube. Liquefaction happens when underground water in the soil comes to the surfac… In the February 2011 quake, the fault movement and structure of the bedrock produced exceptionally strong ground motion – up to 1.8 times the acceleration due to gravity in the eastern suburbs. Search and rescue went on for a long time. We have been overwhelmed with responses from people willing to house our miniature seismometers. More GNS Science audio from National Radio here. Learn more about the shaking, liquefaction, aftershocks and how the fault was found - here. Marie Szamborski in New Zealand outlines the situation in Christchurch in the aftermath of the earthquake that has struck the country. Many returned to Christchurch as conditions improved. The earthquake struck the Canterbury region in New Zealand's South Island and was centred 6.7 kilometres (4.2 mi) south-east of the centre of Christchurch, New Zealand's second-most populous city. The earthquake was caused by the rupture of a 15-kilometre-long fault along the southern edge of the city, from Cashmere to the Avon–Heathcote estuary. Hydrogeologic effects of the earthquakeHelp us collect information about the effect of the earthquake on Canterbury groundwater and irrigation supply. G. Dellow et al., ‘Landslides caused by the 22 February 2011 Christchurch earthquake and management of landslide risk in the immediate aftermath’, Bulletin of the New Zealand Society for Earthquake Engineering, vol. (duration: 25?10?) Personal stories of the 2010–11 Canterbury earthquakes, Creative Commons Attribution-NonCommercial 3.0 New Zealand Licence. Beyond Christchurch and Lyttelton. The quake was centred 10km south-east of the city at a depth of 5km. The Chief Coroner determined that another four deaths were directly associated with the earthquake. One hundred and fifteen died in the CTV building, 18 in the PGC building, 36 in the central city (including eight on buses), and 12 in the suburbs (including from falling rocks in the Redcliffs, Sumner and Port Hills). Although not as powerful as the magnitude 7.1 earthquake on 4 September 2010, this earthquake occurred on a fault line that was shallow and close to the city, so the shaking was particularly destructive. The Australian Plate and the Pacific Plate share a convergent plate boundary. On Tuesday 22 February 2011 at 12.51 p.m. Christchurch was badly damaged by a magnitude 6.3 earthquake, which killed 185 people and injured several thousand. Basic facts about the Christchurch earthquake. Home In the city centre ground accelerations were three to four times greater than those produced by the September 2010 earthquake. Lives have been lost, people have been injured and properties have collapsed and been heavily damaged. The 1929 Arthur’s Pass and Murchison earthquakes, The 2010 Canterbury (Darfield) earthquake, Personal stories of the 2010–11 Canterbury earthquakes, Personal stories of earthquakes since 1942, more about the 2011 Christchurch earthquake on NZHistory, Next: Page 14. A case study of an earthquake in a HIC.. What caused the Christchurch earthquake?
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