GNS Science.   Parliament BuildingsMolesworth StreetWellington 6160New Zealand. The magnitude-7.1 earthquake struck 11km beneath Darfield at 4.35am on September 4, 2010. Environment Canterbury. See our pages for kids on the 4 September 2010 and 22 February 2011 earthquakes. In the United States, a magnitude 7.0 tremor struck near Anchorage, Alaska on November 30. losses totaled more … Some damaging aftershocks followed the main event, the strongest of which was a magnitude 6.3 shock known as the … Less than 6 months later, another earthquake struck within a few kilometers of Christchurch city. The magnitude is a measure of the amount of energy released by the earthquake. New Zealand sits on the boundary between the Australian and Pacific plates. A state of emergency was declared by Civil Defence for Christchurch and the Selwyn District. The next major earthquake occurred on boxing day 2010 with a magnitude of 4.9 and was 12 kilometres deep. GeoNet. Earthquakes cause waves of vibration to travel though the ground. The fronts of some Christchurch city buildings collapsed during the first September After the first Canterbury earthquake the National Crisis Management Centre in the basement of the Beehive in Wellington was activated. At 4:35 am on 4 September 2010, there was a magnitude 7.1 earthquake. (2010, September 7). As well as damaging properties and the local economy, the earthquake had both physical and psychological effect… 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. The main quake was felt widely across the South … 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. For the severe aftershock of 22 February 2011, see 2011 Christchurch earthquake. This water exerts a pressure on the soil particles that influences how tightly the particles themselves are packed together. It was set up to collate a range of sources relating to the Canterbury 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. Canterburyearthquake.govt.nz - http://www.canterburyearthquake.govt.nz/ - is a New Zealand government website. Luck played a part-the quake occurred at … 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. 2010 Canterbury earthquake One person died from a heart attack, possibly caused by the shock of the earthquake, but there wer… Email: Charles.Feltham@parliament.govt.nz, Parliamentary LibraryPrivate Bag 18041Parliament BuildingsWellington 6160T: +64 4 817 9647 no one died from the earthquake and 3 people got put into hospital. The main quake was measured by the nationwide network of 100 seismographs and 180 strong motion sensors. 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 ‘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 fault that caused the Canterbury earthquake on 4 September 2010 has been named the Greendale Fault. Mark Quigley This page was last modified on 23 December 2020, at 02:10. 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. 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? Liquefaction is a phenomenon in which the strength and stiffness of a soil is reduced by extreme shaking. It acts as a gateway to central and local government resources, news and services. The science team will collect high quality data and information for emergency management and research. 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. Kete Christchurch: Canterbury earthquakes 2010 - 2011 contains primary sources such as photographs, experiences, and audio. These MPs represent 65 general electorate seats and seven Māori electorates. The solid facts on Christchurch liquefaction. Around six months later, at 12:51 pm on 22 February 2011, a magnitude 6.3 earthquake hit south-east of Christchurch. In 1935 the American seismologist Charles Richter invented a scale to indicate the strength of an earthquake. There was one important difference-this time there has been no loss of life. However, this may be revised when a clearer picture emerges of the extent of the damage not only to buildings but infrastructure such as sewerage and water supply networks. On 4 September 2010, a magnitude Mw 7.1 earthquake struck the Canterbury region on the South Island of New Zealand. The quake caused damage to historic buildings in Lyttelton, near Christchurch, including a church and parts of a hotel. It is a previously unknown fault under the Canterbury Plains. The second (Christchurch) earthquake (Mw = 6.2) on 22 February 2011, caused by a thrust fault, affected the same region. 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. Prior to an earthquake, the water pressure is relatively low. Understanding what causes earthquakes, where and why they happen, is essential in being prepared for further emergencies. Earthquake Commission and GNS Science. No one died, but buildings in Christchurch were damaged. World. It was centred 40 km west of Christchurch, near the town of Darfield, at a depth of 10 km. They may also occur in the broader area around the fault, as the surrounding rock mass adjusts to stresses created by the main earthquake. 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. GeoNet. 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. at the start of the year on january 24th there was a 7.0 magnatude earthquake with around 52 aftershocks. 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. The 2010 Christchurch earthquake that struck the Canterbury region of New Zealand on September 4, 2010 registered 7.1 on the Richter scale and left 2 dead and 100 injured. Media in category "Buildings damaged by the 2010 Canterbury earthquake" The following 31 files are in this category, out of 31 total. In general, aftershocks decline in magnitude and frequency, as the distance increases from the epicentre of the main quake. Accessed September 7, 2010. 2010 Canterbury Earthquake 2003 Fiordland Earthquake 2009 Dusky Sound Earthquake What really happened at the 2010 Canterbury earthquake. 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. 230,000 people died, 300,000 had been injured and 1,000,000 made homeless. This article has been written by Molly Mcintosh. 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 Darfield earthquake At 4.35 a.m. on Saturday 4 September 2010, Canterbury was rocked by a magnitude 7.1 earthquake centred near Darfield. 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. When liquefaction occurs the strength of the soil decreases and the ability to support foundations for buildings and bridges is reduced. These plates are in constant motion, travelling at a few centimetres per year. Effects of this earthquake included falling buildings and the … 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). Historically, it has been responsible for tremendous amounts of damage in earthquakes around the world. The 2011 Christchurch earthquake was a 6.3 magnitude earthquake which struck the South Island of New Zealand at 12:51 pm on 22 February 2011 NZT. 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 information and tools on the site are provided to support the response to the Canterbury earthquake. Despite being smaller on the Richter Scale, this second earthquake caused widespread damage and loss of lives. 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. Download. 1 earthquake within a radius of 150km of central Christchurch over 24 hours. Earthquake christchurch today. Geotechnical Reconnaissance of the 2010 Darfield (New Zealand) Earthquake, Report. It was at a depth of 10km and was centred 40km west of Christchurch. why were there so much damage in … * 10 km east of Waiau, Canterbury, New Zealand. Richter’s method worked well for small to moderate earthquakes, but the magnitudes of very large earthquakes were underestimated. 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. The largest recorded earthquake was the 9.5 Chilean earthquake in 1960. New Zealand lies on the boundary of the Pacific and Australian tectonic plates. It was based on the Greendale fault, which is a newly discovered fault. Apart from physical injuries, international literature suggests that psychosocial recovery after a disaster can take five to ten years. Parliamentary.Information@parliament.govt.nz. Mercalli was an Italian seismologist (and priest) who developed his scale for measuring quakes in the early 20th century. The Modified Mercalli (MM) intensity scale is used for measuring the intensity of an earthquake. 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. 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. Within New Zealand, the September 2010 earthquake and its aftershocks are thus also known as the Canterbury earthquakes. The size of an earthquake is referred to as its Magnitude (although the Richter scale is often used interchangeably by the non-scientific community). 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. Christchurch is built on the edge of the Canterbury Plains, which are made up of deep layers of sediments deposited by rivers draining from the Southern Alps. 1).While many older brick and masonry buildings were damaged and approximately 100 people were injured in this earthquake, there were no associated deaths. 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. Earthquakes. Other areas, where the movement is not constant, are prone to stronger quakes separated by longer periods of time. The scale quantifies the intensity of ground-shaking and destructiveness of an earthquake from MM1 (smallest) to MM12 (cataclysmic). the 2010 Canterbury earthquake late in the school year. 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. (2010, September 6). Feb 4, 2014 - Explore Angela Turra's board "Earthquake", followed by 898 people on Pinterest. 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 Canterbury earthquakes are in no way related to the flooding events in Queensland or the massive earthquake in Japan. In some places movement between the plates is happening all the time, causing frequent small or moderate earthquakes. It is believed that the Christchurch area was first settled in 1250 by tribes hunting the now-extinct … This is largely due to the earthquake taking place in … Accessed September 7, 2010. Source: Institute of Geological and Nuclear Sciences. 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. Giv en that such a time frame. During the 2010 and 2011 Canterbury earthquakes, over 400 000 tonnes of silt came to the surface, covering streets and gardens in several suburbs. Latest earthquake is #25940 being magnitude 2.43 ( II) at 33.12 km at 12:10am, about 23 hr 8 mins ago. "The 2011 Mineral, Virginia Earthquake and Its Significance for Seismic Hazards in Eastern North America-Overview and Synthesis," The 2011Mineral, Virginia, Earthquake, and Its Significance for Seismic Hazards in Eastern North America, GSA Special Paper 509, Geological Society of America, Boulder, CO. 1-25. Parliament's decisions affect all New Zealanders. on the 4th of september there was a 7.1 magnatude earthquake hit canterbury with around 200 aftershocks so far. 2010 Canterbury earthquake Wikipedia 2020. It was about 5 km underground. Strong aftershocks were reported, including ones of magnitude 5.3. Have your say and influence the laws passed by Parliament. Aftershocks have generally been occurring at the expected rate following the main Canterbury shock. 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. 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. 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 was based near Darfield but felt all over the South Island and in the lower part of the North Island. The tremor caused widespread damage across the Canterbury region but no fatalities. Strong aftershocks were reported, including ones of magnitude 5.3. This morning's magnitude 7.1 quake hit at 4.36am. The other 48 MPs are selected from the party lists. The Richter scale was based on the largest amplitude recorded on a seismograph. The solid facts on Christchurch liquefaction. You can get involved by voting in elections, contacting an MP,  making a submission or petitioning Parliament. Earthquake Commission and GNS Science. 4:35am (NZ … 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. 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. 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. Aftershock sequences follow predictable patterns based on seismological observations and mathematical modelling. Tourism infrastructure in Canterbury and Christchurch is operating as usual. Environment Canterbury. Although it is impossible to predict the exact timing of the next big quake, scientists will increase their knowledge of the statistical risks and potential size of future earthquakes. Canterbury fault had not ruptured for at least 16,000 years. The website provides free access to a wide range of resources. The total cost of damages may be as high as NZ$2 billion. Darfield earthquake damages Canterbury. Most (though not all) earthquakes occur at faults, which are breaks extending deep within the earth, caused by the movement of these plates. Accessed September 7, 2010. Two people were seriously injured. Tension builds up as they scrape over, under or past each other. Learn 2010 Canterbury earthquake facts for kids. is largely influenced by nation-wide NCEA e xaminations, it is of little surprise that the. The epicentre was 40 km west of Christchurch city close to the town of Darfield, at a depth of 10 km. It caused a lot of damage and cut off power and water supply, mainly in the city of Christchurch. Detailed information on the Darfield earthquake is available at http://www.geonet.org.nz/news/article-sep-4-2010-christchurch-earthquake.html, Institute of Nuclear and Geological Sciences - provides complementary information to the GeoNet’s commentary on the Canterbury quake at http://www.gns.cri.nz/Home/News-and-Events/Media-Releases/Most-damaging-quake-since-1931/Canterbury-quake. (This is 23:51 21 February UTC). The facade of the Repertory Theatre was extensively damaged. Facts From the Christchurch NZ EarthQuake 4th Sept 2010 This post was taken from Wikipedia, the free encyclopedia. Aftershocks are not included, unless they were of great significance or contributed to a death toll, such as the M 6.3 2011 Christchurch earthquake and the M 7.3 aftershock to the 1931 Hawke's Bay earthquake. 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 in Christchurch today and historic (Canterbury, Christchurch City, , New Zealand) Map of the most recent 25 earthquakes in Christchurch and Canterbury, New Zealand.Christchurch Quake Map. For more information about tours and visiting Parliament, click here. The Canterbury earthquake has been given a MM9 rating. 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 ). A New Zealand Crown entity investing in natural disaster research, education and providing insurance to residential property owners. Thousands of people were made homeless. 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). (2010, September 6). Basic Facts Date: 4th of September 2010 Time: 4.35am Magnitude: … 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. It is a previously unknown fault under the Canterbury Plains. The fault that caused the Canterbury earthquake on 4 September 2010 has been named the Greendale Fault. 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 … It was centred 40 km west of Christchurch, near the town of Darfield, at a depth of 10 km. This list of information is meant to update those outside of New Zealand as to what has been going on since the 2010 Canterbury earthquake is better than 2010 Christchurch Earthquake because the epicentre and most severely damaged areas were outside Christchurch. Businesses in the city centre were closed the day of the quake. There was no loss of life and few serious injuries, but many stone and masonry buildings were damaged. 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. 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. 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. 2010 Canterbury earthquake is an appropriate article name, and I thus disagree with the proposed name change, too. Liquefaction is not just a New Zealand problem. Liquefaction occurs in saturated soils, that is, soils in which the space between individual particles is completely filled with water. 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. 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. Every effort has been made to ensure that the content of this newsletter is accurate, but no guarantee of accuracy can be given. The fault that caused the Canterbury earthquake on 4 September 2010 has been named the Greendale Fault. 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. 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. Strong aftershocks were reported, including ones of … Canturbury Earthquake 2010 and Christchurch Earthquake 2011 Facts. Accessed September 7, 2010. There was no loss of life and few serious injuries, but many stone and masonry buildings were damaged. Darfield earthquake damages Canterbury. 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. GNS Science. On June 17 another strong earthquake impacted Osaka Japan, resulting in insured losses of at least $935 million. Canterburyearthquake.org.nz – http://canterburyearthquake.org.nz/ - is managed by Environment Canterbury. 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 largest of these, the "Boxing Day aftershock", with a magnitude of 4.9, at a depth of 12 km below Opawa was felt very The GeoNet website provides public access to hazards information, including earthquake reports and Volcanic Alert Bulletins. The main quake was felt widely across the South Island, and in the North Island as far north as New Plymouth. [1] GeoNet operates a modern geological hazard monitoring system in New Zealand. Geotechnical Reconnaissance of the 2010 Darfield (New Zealand) Earthquake, Report. On 4 September 2010 Canterbury was affected by a magnitude 7.1 earthquake. This was a new phenomenon for most New Zealanders, yet it has been a feature during earthquakes throughout this country’s history. Saturday 4 September 2010. Schwede 66 02:35, 4 September 2010 (UTC) I agree. On 22 February 2011 a magnitude 6.3 earthquake caused 185 deaths and major damage to property. 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. It is a previously unknown fault under the Canterbury Plains. Ground near the Darfield epicentre moved at up to 1.25 times the acceleration due to gravity. Canterbury fault had not ruptured for at least 16,000 years. To date there have been more than 2,700 aftershocks in the Canterbury region. It was relatively shallow – around 10 km deep – and produced the strongest earthquake ground-shaking ever recorded in New Zealand. 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. In the South Island, these plates mainly slide past each other horizontally, producing earthquakes along fault lines such as the Alpine fault. (2010, September 7). 2). In 1995, the Japanese city of Kobe suffered extensive damage from an earthquake. It has been known as the Greendale, Darfield, Rolleston, September or Canterbury Earthquake. 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. 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 quake struck the city of 350,000 people and the surrounding Canterbury region at 4:35am.     At least 15,899 people died, and another 2,500 went missing. 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. Sampling included organisations proximal and distal to the fault trace, organisations located within central business districts, and organisations from seven diverse industry sectors. 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. 161-179 Victoria Street.JPG 4,000 × 3,000; 4.28 MB However, there was no tsunami resulting from this earthquake as it occurred on land. There are ten major plates and many more minor ones. Geonet - http://www.geonet.org.nz/about/index.html - is a joint project between GNS and the Earthquake Commission. 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. During the earthquake, the shaking caused liquefaction of these layers which resulted in soil being discharged to the surface. This paper provides a brief overview of the causes of earthquakes, how they are measured and what factors contribute the observed patterns of destruction. 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). There have been thousands of aftershocks in Canterbury since the 2010 earthquake. See more ideas about earthquake, natural disasters, earthquake and tsunami. Elisabeth Bowman. The 1855 Wellington and 1931 Napier earthquakes were both MM10 at their epicentres. Km east of Waiau, Canterbury was affected by a magnitude 7.1 earthquake on january 24th there a... Went missing many more minor ones people and the surrounding Canterbury region at 4:35am Richter invented a scale to the. Were both MM10 at their epicentres to hazards information 2010 canterbury earthquake facts including earthquake reports and Alert... 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