The main quake was felt widely across the South … [1] Parliament BuildingsMolesworth StreetWellington 6160New Zealand. On 4 September 2010, a magnitude Mw 7.1 earthquake struck the Canterbury region on the South Island of New Zealand. The second (Christchurch) earthquake (Mw = 6.2) on 22 February 2011, caused by a thrust fault, affected the same region. Geotechnical Reconnaissance of the 2010 Darfield (New Zealand) Earthquake, Report. 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. Liquefaction is not just a New Zealand problem. Home; Starting on: 4 September 2010; 22 February 2011; 13 June 2011; 23 December 2011; Big Quakes; Largest 25; Latest 25; Today; Past week; Other … Major fault zones in New Zealand, with the plate boundary and relative motion of the Pacific Plate shown, Building damage in Worcester Street, corner Manchester Street, with Christchurch Cathedral in the background. No lives were lost, but buildings were damaged and deemed unsafe leading to a state of emergency being pronounced in the city of Christchurch. The 2010 earthquake was centred about 80–90 km to the southeast of the plate boundary through the island, probably on one of a network of smaller faults linked to the main faults that mark the plate boundary itself. It caused a lot of damage and cut off power and water supply, mainly in the city of Christchurch. Basic Facts Date: 4th of September 2010 Time: 4.35am Magnitude: … Other areas, where the movement is not constant, are prone to stronger quakes separated by longer periods of time. In general, aftershocks decline in magnitude and frequency, as the distance increases from the epicentre of the main quake. Earthquake Commission and GNS Science. Public servants and special interest groups, http://www.geonet.org.nz/about/index.html, http://www.geonet.org.nz/news/article-sep-4-2010-christchurch-earthquake.html, http://www.gns.cri.nz/Home/News-and-Events/Media-Releases/Most-damaging-quake-since-1931/Canterbury-quake, http://creativecommons.org/licenses/by/3.0/nz/, http://www.gns.cri.nz/Home/News-and-Events/Media-Releases/Text-book-aftershock, Parliamentary.Information@parliament.govt.nz. The tremor caused widespread damage across the Canterbury region but no fatalities. The main quake was felt widely across the South Island, and in the North Island as far north as New Plymouth. GeoNet operates a modern geological hazard monitoring system in New Zealand. No one died, but buildings in Christchurch were damaged. Overall, the Canterbury economy has been reasonably resilient to the impact of the earthquakes, and the spillover to other regions in New Zealand has been limited. 2010 Canterbury Earthquake 2003 Fiordland Earthquake 2009 Dusky Sound Earthquake What really happened at the 2010 Canterbury earthquake. When liquefaction occurs the strength of the soil decreases and the ability to support foundations for buildings and bridges is reduced. The Canterbury earthquakes are not the largest earthquakes in New Zealand's history, but the February quake has lead to more costly damage than for any other natural disaster in New Zealand. Strong aftershocks were reported, including ones of magnitude 5.3. Source: Institute of Geological and Nuclear Sciences. The facade of the Repertory Theatre was extensively damaged. It is a previously unknown fault under the Canterbury Plains. The 2010-2011 Canterbury earthquake sequence The Darfield earthquake occurred at 4:35 am (New Zealand Standard Time, NZST) on 4 September 2010, causing no fatalities and few injuries. 2018 Earthquakes: On September 5 an earthquake struck Hokkaido, Japan which left dozens dead and caused more than $1.7 billion in damage, according to Aon. This paper presents the preliminary findings of a study on the resilience and recovery of organisations following the Darfield earthquake in New Zealand on 4 September 2010. Businesses in the city centre were closed the day of the quake. Canterbury fault had not ruptured for at least 16,000 years. The Canterbury earthquakes are in no way related to the flooding events in Queensland or the massive earthquake in Japan. A state of emergency was declared by Civil Defence for Christchurch and the Selwyn District. Within New Zealand, the September 2010 earthquake and its aftershocks are thus also known as the Canterbury earthquakes. The information and tools on the site are provided to support the response to the Canterbury earthquake. GNS had not ruled out an aftershock as large as magnitude 6, which was previously expected, but they now believe the largest aftershock has already occurred (a 5.6 magnitude quake 20 minutes after the main one). At 4:35 am on 4 September 2010, there was a magnitude 7.1 earthquake. Strong aftershocks were reported, including ones of … Tectonic plates are large plates of rock, about 100km in thickness, that make up the foundation of the earth's crust and the shape of the continents (like pieces of a giant jigsaw puzzle). It has been known as the Greendale, Darfield, Rolleston, September or Canterbury Earthquake. Facts From the Christchurch NZ EarthQuake 4th Sept 2010 This post was taken from Wikipedia, the free encyclopedia. Ground near the Darfield epicentre moved at up to 1.25 times the acceleration due to gravity. The Canterbury region has had six months of unexpected and extremely difficult challenges as a result of a sequence of damaging and deadly earthquakes and the associated aftershocks. Central Kaiapoi suffered major damage; many of the town's buildings had to be bulldozed as a result of the 2010 earthquake and subsequent quake in February 2011. It is believed that the Christchurch area was first settled in 1250 by tribes hunting the now-extinct … The fault that caused the Canterbury earthquake on 4 September 2010 has been named the Greendale Fault. However, there was no tsunami resulting from this earthquake as it occurred on land. GNS Science. Aftershocks are caused by movement along a fault, and at the tips of the fault, in areas that did not rupture during the main earthquake. Strong aftershocks were reported, including ones of magnitude 5.3. There have been thousands of aftershocks in Canterbury since the 2010 earthquake. Learn 2010 Canterbury earthquake facts for kids. Despite being smaller on the Richter Scale, this second earthquake caused widespread damage and loss of lives. Richter’s method worked well for small to moderate earthquakes, but the magnitudes of very large earthquakes were underestimated. There was one important difference-this time there has been no loss of life. The 2010 Canterbury earthquake was a powerful 7.1 magnitude earthquake, which struck the South Island of New Zealand at 4:35 am September 4, 2010 local time (16:35 3 September UTC). The point under the ground where the earthquake actually begins is called the hypocentre or focus, while the place directly above it on the surface is known as the epicentre. On the 4th of September 2010 at 4.35 am the people of Christchurch, the Canterbury area and many other parts of New Zealand were jolted awake by a 7.1 magnitude earthquake. Sometimes excess water will come to the surface through cracks bringing liquefied sand with it, creating what are known as sand boils or sand volcanoes. The epicentre of the Canterbury earthquake was near the town of Darfield, and felt throughout the South Island and as far north as New Plymouth. GeoNet. Saturday 4 September 2010. After the 2010 Canterbury Earthquake, a 7.1 magnitude earthquake near Christchurch, New Zealand, the region has been hit by hundreds of aftershocks - many of them widely felt around Christchurch, and some of which have caused further damage. This water exerts a pressure on the soil particles that influences how tightly the particles themselves are packed together. A GNS Science-led team, including personnel from Land Information New Zealand (LINZ), Otago University and Victoria University of Wellington, has been monitoring aftershock activity and collating seismic data in the Canterbury region. Elisabeth Bowman. GNS Science. In contrast the Fiordland earthquake on 15 July 2009 of magnitude 7.8, was given an intensity measurement of MM7 because it occurred in an isolated area and there was only a small amount of damage to buildings reported in Invercargill. Schwede 66 02:35, 4 September 2010 (UTC) I agree. Have your say and influence the laws passed by Parliament. Canterbury fault had not ruptured for at least 16,000 years. Since then, thousands of quakes have rattled the region, the most damaging a magnitude-6.3 on February 22 last year, which claimed 185 lives. They may also occur in the broader area around the fault, as the surrounding rock mass adjusts to stresses created by the main earthquake. Environment Canterbury. Geotechnical Reconnaissance of the 2010 Darfield (New Zealand) Earthquake, Report. The solid facts on Christchurch liquefaction. 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. The first sign of a quake is often the rumbling sound caused by the ‘P’ (primary or push) waves travelling at about 20,000 kilometers an hour. This is a list of large earthquakes that have occurred in New Zealand.Only earthquakes with a magnitude of 6.0 or greater are listed, except for a few that had a moderate impact. To date there have been more than 2,700 aftershocks in the Canterbury region. During the Canterbury earthquake liquefaction and lateral spreading (sideways movement of the ground) occurred in the Kaiapoi area and some of Christchurch's eastern suburbs. Latest earthquake is #25940 being magnitude 2.43 ( II) at 33.12 km at 12:10am, about 23 hr 8 mins ago. Accessed September 7, 2010. This article has been written by Molly Mcintosh. The magnitude-7.1 earthquake struck 11km beneath Darfield at 4.35am on September 4, 2010. (2010, September 7). Liquefaction is more likely to occur in loose to moderately saturated granular soils with poor drainage, such as silty sands or sands and gravels containing seams of impermeable sediments. Earthquake Commission and GNS Science. Accessed September 7, 2010. Geonet - http://www.geonet.org.nz/about/index.html - is a joint project between GNS and the Earthquake Commission. Coarser gravels are common further inland, but close to the coast there are many layers of finer-grained sediment, such as sand, silt and clay. The quake struck the city of 350,000 people and the surrounding Canterbury region at 4:35am. Liquefaction occurs in saturated soils, that is, soils in which the space between individual particles is completely filled with water. (This is 23:51 21 February UTC). There was no loss of life and few serious injuries, but many stone and masonry buildings were damaged. In the United States, a magnitude 7.0 tremor struck near Anchorage, Alaska on November 30. losses totaled more … GeoNet. There was no loss of life and few serious injuries, but many stone and masonry buildings were damaged. 230,000 people died, 300,000 had been injured and 1,000,000 made homeless. Tourism infrastructure in Canterbury and Christchurch is operating as usual. 2). 2010 Canterbury earthquake The 2010 Canterbury earthquake was a powerful 7.1 magnitude earthquake, which struck the South Island of New Zealand at 4:35 am September 4, 2010 local time (16:35 3 September UTC).It was centred 40 km west of Christchurch, near the town of Darfield, at a depth of 10 km. Facts Why was the magnitude 6.3 earthquake able to cause so much more destruction in the CBD and Christchurch suburbs than the magnitude 7.1 quake last September? Canterburyearthquake.govt.nz - http://www.canterburyearthquake.govt.nz/ - is a New Zealand government website. During the earthquake, the shaking caused liquefaction of these layers which resulted in soil being discharged to the surface. 1).While many older brick and masonry buildings were damaged and approximately 100 people were injured in this earthquake, there were no associated deaths. On 4 September 2010 a moment magnitude (M w) 7.1 earthquake occurred near the small town of Darfield in the Canterbury Plains of the South Island of New Zealand (; Fig. The 1855 Wellington and 1931 Napier earthquakes were both MM10 at their epicentres. In the first eighty years of European settlement in Christchurch (1850–1930), four earthquakes caused significant damage, the last of these centred at Motunau on the North Canterbury coast in 1922. (2010, September 6). For the severe aftershock of 22 February 2011, see 2011 Christchurch earthquake. The 2010 Canterbury earthquake measured 7.1 on the Richter Scale and struck the South Island of New Zealand at 4:35 am on the 4th of September 2010. The largest recorded earthquake was the 9.5 Chilean earthquake in 1960. Download. The magnitude is a measure of the amount of energy released by the earthquake. During the Canterbury earthquakes of September 2010 and February 2011, liquefaction caused silt and fine sand to boil up and bury streets and gardens and caused buildings and vehicles to sink. This list of information is meant to update those outside of New Zealand as to what has been going on since the Christchurch earthquakes of 2010–11, series of tremors that occurred within and near the city of Christchurch, New Zealand, and the Canterbury Plains region from early September 2010 to late December 2011. Luck played a part-the quake occurred at … no one died from the earthquake and 3 people got put into hospital. The 2010 Canterbury earthquake was a powerful 7.1 magnitude earthquake, which struck the South Island of New Zealand at 4:35 am September 4, 2010 local time (16:35 3 September UTC). This page was last modified on 23 December 2020, at 02:10. The severest of those events were the earthquake (magnitude from … 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.There was one important difference-this time there has been no loss of life. The 2010 Canterbury earthquake (also known as the Darfield earthquake) struck the South Island of New Zealand with a moment magnitude of 7.1 at 4:35 a.m. local time on 4 September, and had a maximum perceived intensity of X (Extreme) on the Mercalli intensity scale. Geotechnical Reconnaissance of the 2010 Darfield (New Zealand) Earthquake, Report The fault that caused the Canterbury earthquake on 4 September 2010 has been named the Greendale Fault. Earthquakes cause waves of vibration to travel though the ground. The Darfield earthquake (Mw 7.1; ML 7.2) occurred along a previously unknown strike-slip fault in Canterbury Province, New Zealand on 4 September 2010. The earthquake occurred more than five months after the September 4, 2010 earthquake of a 7.1 magnitude (in which no one died), and is considered to be an aftershock. Apart from physical injuries, international literature suggests that psychosocial recovery after a disaster can take five to ten years. Mark Quigley In some places movement between the plates is happening all the time, causing frequent small or moderate earthquakes. It was centred 9 km southeast of the town of Darfield, 40 km west of Christchurch (all locations mentioned in the text are in Fig. One person died from a heart attack, possibly caused by the shock of the earthquake, but there wer… Scientists from the Institute of Geological and Nuclear Sciences (GNS) think it is the first time this fault has moved in several thousand years, and it is unlikely that it will move again for another few thousand years. Liquefaction is a phenomenon in which the strength and stiffness of a soil is reduced by extreme shaking. View of the Oxford Terrace Baptist Church after the 2010 Canterbury earthquake, with props holding the frontage up (It was later destroyed in the 22 February aftershock). The ‘S’ (secondary or shear) waves follow along at about 10,000 kilometers an hour, and cause the main rolling and shaking effects of an earthquake. The 2010 Canterbury earthquake (also known as the Christchurch earthquake ) was a 7.1 magnitude earthquake , which struck the South Island of New Zealand at 4:35 am on 4 September 2010 local time (16:35 3 September UTC ). 161-179 Victoria Street.JPG 4,000 × 3,000; 4.28 MB Less than 6 months later, another earthquake struck within a few kilometers of Christchurch city. In the 53rd New Zealand Parliament there are five parliamentary parties represented by 120 MPs. at the start of the year on january 24th there was a 7.0 magnatude earthquake with around 52 aftershocks. The 2010 Canterbury earthquake was a powerful 7.1 magnitude earthquake, which struck the South Island of New Zealand at 4:35 am September 4, 2010 local time (16:35 3 September UTC).It was centred 40 km west of Christchurch, near the town of Darfield, at a depth of 10 km. For more information about tours and visiting Parliament, click here. The ‘S’ (secondary or shear) waves follow along at about 10,000 kilometers an hour, and cause the main rolling and shaking effects of an earthquake. The next major earthquake occurred on boxing day 2010 with a magnitude of 4.9 and was 12 kilometres deep. Environment Canterbury. Disclaimer. In 1935 the American seismologist Charles Richter invented a scale to indicate the strength of an earthquake. It was based on the Greendale fault, which is a newly discovered fault. It was centred 40 km west of Christchurch, near the town of Darfield, at a depth of 10 km. 5 At the time of the 4 September 2010 Canterbury earthquake, EQC employed one communications manager who was assisted by a Wellington communications agency on an as-needed basi s. After th is and subsequent earthquakes, there was a large increase in the amount of information that EQC needed to communicate, the number and diversity of audiences it The size of an earthquake is referred to as its Magnitude (although the Richter scale is often used interchangeably by the non-scientific community). Aftershocks have generally been occurring at the expected rate following the main Canterbury shock. 2010 Canterbury earthquake is an appropriate article name, and I thus disagree with the proposed name change, too. 4:35am (NZ … See our pages for kids on the 4 September 2010 and 22 February 2011 earthquakes. New Zealand sits on the boundary between the Australian and Pacific plates. Darfield earthquake damages Canterbury. This paper provides a brief overview of the causes of earthquakes, how they are measured and what factors contribute the observed patterns of destruction. The epicentre was 40 km west of Christchurch city close to the town of Darfield, at a depth of 10 km. World. As well as damaging properties and the local economy, the earthquake had both physical and psychological effect… Darfield earthquake damages Canterbury.     At least 15,899 people died, and another 2,500 went missing. Learn 2010 Canterbury earthquake facts for kids. It is a logarithmic scale, which means that a magnitude seven earthquake is 32 times as powerful as a magnitude six quake. Prior to an earthquake, the water pressure is relatively low. The Modified Mercalli (MM) intensity scale is used for measuring the intensity of an earthquake. The fault that caused the Canterbury earthquake on 4 September 2010 has been named the Greendale Fault. Thousands of people were made homeless. This is largely due to the earthquake taking place in … Around six months later, at 12:51 pm on 22 February 2011, a magnitude 6.3 earthquake hit south-east of Christchurch. the 2010 Canterbury earthquake late in the school year. Tension builds up as they scrape over, under or past each other. The epicentre of the Canterbury earthquake was near the town of Darfield, and felt throughout the South Island and as far north as New Plymouth. 1 earthquake within a radius of 150km of central Christchurch over 24 hours. Historically, it has been responsible for tremendous amounts of damage in earthquakes around the world. Media in category "Buildings damaged by the 2010 Canterbury earthquake" The following 31 files are in this category, out of 31 total. Understanding what causes earthquakes, where and why they happen, is essential in being prepared for further emergencies. Accessed September 7, 2010. Canterburyearthquake.org.nz – http://canterburyearthquake.org.nz/ - is managed by Environment Canterbury. During the 2010 and 2011 Canterbury earthquakes, over 400 000 tonnes of silt came to the surface, covering streets and gardens in several suburbs. The solid facts on Christchurch liquefaction. The epicentre was 40 km west of Christchurch city close to the town of Darfield, at a depth of 10 km. The Darfield earthquake At 4.35 a.m. on Saturday 4 September 2010, Canterbury was rocked by a magnitude 7.1 earthquake centred near Darfield. Aftershock sequences follow predictable patterns based on seismological observations and mathematical modelling. Giv en that such a time frame. It was relatively shallow – around 10 km deep – and produced the strongest earthquake ground-shaking ever recorded in New Zealand. Tourism infrastructure in Canterbury and Christchurch is operating as usual. Parliament's decisions affect all New Zealanders. This was a new phenomenon for most New Zealanders, yet it has been a feature during earthquakes throughout this country’s history. Parliamentary.Information@parliament.govt.nz. A New Zealand Crown entity investing in natural disaster research, education and providing insurance to residential property owners. Some damaging aftershocks followed the main event, the strongest of which was a magnitude 6.3 shock known as the … However, earthquake shaking can cause the water pressure to increase to the point where the soil particles can readily move with respect to each other and the soil behaves as a liquid. Earthquakes. The 1855 Wellington earthquake had an estimated magnitude of 8.2, the Napier earthquake of 1931 was 7.8, and the recent Canterbury earthquake was of magnitude 7.1. It was about 5 km underground. The 2010 Canterbury earthquake struck the South Island of New Zealand with a moment The earthquake's epicentre was 40 kilometres (25 mi) west of Christchurch, close to the town of Darfield. why were there so much damage in … The Richter scale has been superseded by the moment magnitude scale, which is calibrated to give generally similar values for medium-sized earthquakes (magnitudes between 3 and 7 on the Richter scale) but measures larger earthquakes with greater accuracy. The GeoNet website provides public access to hazards information, including earthquake reports and Volcanic Alert Bulletins. It struck the Canterbury region of the island and caused a lot of damage and many deaths in Christchurch, New Zealand's second largest city. It was based near Darfield but felt all over the South Island and in the lower part of the North Island. Sampling included organisations proximal and distal to the fault trace, organisations located within central business districts, and organisations from seven diverse industry sectors. The website provides free access to a wide range of resources. After the first Canterbury earthquake the National Crisis Management Centre in the basement of the Beehive in Wellington was activated. It was centred 40 km west of Christchurch, near the town of Darfield, at a depth of 10 km. The 4 September 2010 earthquake was the largest to affect a major urban area since the 7.8-magnitude shock that struck the Hawke’s Bay region on 3 February 1931. * 10 km east of Waiau, Canterbury, New Zealand. Crack in Bridge Street, South New Brighton, A structural inspection notice verifies a shop as safe for use, Police cordon in Riccarton Road during demolition of damaged buildings, 2010 Canterbury earthquake Facts for Kids, 2 seriously injured, approximately 100 total injuries. 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