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2011 christchurch earthquake magnitude

The damage in Christchurch was far more substantial than the damage caused in the 7.1 earthquake only 5 months before. [43] The Christchurch Arts Centre sustained similar damage, though it had been in a precarious state prior. It was a 6.3 magnitude earthquake and the focus was very shallow at 4.99 kilometres deep. [47] Artifacts from the Canterbury Museum collection were thrown into disorder by the aftershocks, several days after reordering work following the February 2011 earthquake had been completed. Playing next. A magnitude 7.1 earthquake struck the Canterbury Region of New Zealand at 4:35 am on 4 September 2010. Before the Darfield earthquake there was little indication that this fault system existed and could result in large earthquakes. [27] Dozens of dissatisfied residents were expected to move out of the city, and many others sought professional help for anxiety and depression-related issues. Liquefaction happens when underground water in the soil comes to the s… On Tuesday 22nd of February 2011 there was a 6.3 magnitude earthquake at 12:51pm. Before the Darfield earthquake there was little indication that this fault system existed and could result in large earthquakes. [11] Another destructive magnitude 7.8 ML earthquake struck the region near Hawke's Bay on 3 February 1931; it is the deadliest earthquake recorded on the island to date, greatly affecting much of Napier and Hastings. Christchurch, the country’s second largest city, suffered widespread damage, particularly in the central city and eastern suburbs. It was centred 11 km beneath the rural town of Darfield, on the Greendale fault, which was previously unidentified. It was centred at a depth of 7 km (4.3 mi), about 5 km (3 mi) south-east of Christchurch, which had previously been devastated by a magnitude 6.2 MW earthquake in February 2011. The eastern … The June 2011 Christchurch earthquake was a shallow magnitude 6.0 Mw earthquake that occurred on 13 June 2011 at 14:20 NZST (02:20 UTC). [49] At Christchurch International Airport, officials halted operations after the earthquake, but all flights resumed later that day. [46] The multi-story HSBC Tower shook considerably during the quake, but damage was limited to cracks and broken roof tiles. On 22 February 2011, at 12:51 pm, Christchurch was struck by a magnitude 6.3 earthquake. The effects of the earthquake on the region's population and … The landforms of Sumner recorded intensified shaking due to the effects of its topographic setting. The magnitude 6.3 earthquake, that devastated Christchurch on 21 February 2011, is seen late in the sequence and occurred on a fault segment slightly further to the east. The earthquake struck the city of Christchurch in New Zealand on 22 February 2011. The earthquake’s epicentre was near Lyttelton, just 10 km south-east of Christchurch’s central business district. New Zealand earthquake: Depth and location key | BBC News, The unknown fault that caught out Christchurch | New Scientist, Analysis: Latest aftershock was made worse by its shallow depth | Scotsman, Seismologists blame Christchurch disaster on new fault The U.S. Geological Survey considered the earthquake an aftershock of the magnitude … 1:33. 19 likes. Data from GNS Science, New Zealand. Note how the maximum values are clustered in Christchurch, close to the rupture, and fall away fairly quickly outside it. On 22 February 2011, at 12:51 pm (lunchtime), Christchurch was struck by a magnitude 6.3 earthquake. Nearly 200 people died. Aftershocks since the magnitude 7.1 earthquake of 3 September 2010 until the magnitude 6.3 earthquake of 21 February 2011, Aftershocks since magnitude 6.3 earthquake of 21 February 2011 until 25 February 2011. The study reported high levels of psychological distress but … The Christchurch Earthquake (2011) Home; Causes ; Impacts ; Mitigation; References ; Casualties, Damages and Other Effects. Many parts of Christchurch lost water pressure, and residents were urged to be conservative in their water use. Magnitude 9.0–9.1 (M w ) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011, with the epicentre approximately 70 km east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately 29 km. The damaged tower of the historic Lyttelton Timeball Station collapsed before dismantling work could be completed. [23] It caused damage to buildings and infrastructure alike, collapsing or otherwise destroying several homes. 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. The event has led to the discovery of previously dormant geological faults across central-eastern South Island, in particular beneath regional plains and the adjacent seabed. This map shows the earthquakes that occurred near Christchurch since September 3, 2010. Are yesterday's earthquakes tomorrow's disasters? Several smaller aftershocks followed.
The epicentre was 6 miles South East of Christchurch and the focus was very shallow at 3.1 miles. The reason why many scientists suggest that the 2011 Christchurch was an earthquake on its own is that it occurred on a different fault line to the 2010 Christchurch earthquake. [24] There were at least 46 injuries: falling debris struck several people, and two others were hospitalised in critical condition. [5][25], In the wake of the earthquake, multiple phone lines were down, and scattered power outages affected about 54,000 households. 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. It was about 5 km underground. Concerns arose about the condition of previously damaged structures, and the 13 June earthquakes caused further distress among many victims. [52] At Westpac Bank, a public donation account was opened in order to provide financial assistance for earthquake victims. Prime TV documentary on the Christchurch earthquake. The 6.3 magnitude earthquake - an aftershock of the 7.1 magnitude quake on September 4 - struck 20km southeast of Christchurch at around 1pm local time, with initial reports suggesting damage and fatalities far exceeding the initial quake. This article is written in New Zealand English , which has its own spelling conventions ( colour , realise , analyse ), and some terms that are used in it may be different or absent from Australian , British , and other varieties of English . [31] Months before the event, a severe magnitude 6.2 earthquake occurred in a similar area adjacent to Christchurch, causing widespread destruction and fatalities in the city. The eastern … [15] The June earthquake was preceded by a magnitude 5.9 ML tremor with a similar focal mechanism that struck 1 hour and 20 minutes earlier. [17] The United States Geological Survey reported a magnitude of 6.0 Mw and a focal depth of 9 km (5.6 mi) for the earthquake, while the precursor tremor was assigned a magnitude of 5.2 Mw at a similar depth. As had happened after the 4 September 2010quake, there was a lot of liquefaction. The building had become structurally compromised due to its collapsed western wall, and the strong vibrations had shattered its stained glass rose window. 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… Magnitude: M L 6.3; Casualties: 185 deaths; Damage to buildings in the central city, Christchurch. The United States Geological Survey reported a magnitude of 6.0 Mw and a depth of 9 km (5.6 mi). The city of Christchurch experienced a major earthquake centred south of the city; severe damage and casualties occurred. 3 000 buildings in total were inspected, of that total 45% were deemed unsafe and were given a yellow or red sticker. Here is a … At 12.51pm on Tuesday 22 February 2011, an earthquake (an aftershock following a large earthquake in September 2010) of Richter scale magnitude 6.3 (energy magnitude 6.7) struck the Christchurch region (depth 5km with its epicentre Lyttleton). [27] Officials ordered the precautionary closure of bridges in the area,[28] as one bridge had already succumbed to the strong shaking. [41] Multiple hospitals and residential care facilities in Christchurch were left without essential services, and some even reported considerable infrastructural damage. Contact Brian Baptie for further information. Browse more videos. (This is 23:51 21 February UTC). [35] Nationwide, building consents tumbled considerably, further dropping by 4.5% in the wake of the aftershock. Kaiapoi is a town in the Waimakariri District of the Canterbury region, in the South Island of New Zealand. A 'severe' 6.0 magnitude earthquake has hit off the south coast of New Zealand just two days after Christchurch was rocked by a powerful quake.. This will show photo's from our earthquakes and to remember how Christchurch used to be and never forget those we lost. 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. GeoNet staff deployed portable earthquake recorders to collect information on the rich aftershock sequence of the earthquake. 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. Essential organisations in the area were evacuated as a safety precaution, including the police headquarters and offices of the Canterbury Earthquake Recovery Authority. The June quake was preceded by a magnitude 5.9 M L tremor that … Mon 21 Feb 2011 19.52 EST A strong 6.3-magnitude earthquake has struck the city of Christchurch on New Zealand's South Island, seriously injuring people and damaging buildings throughout the city. On 22 February 2011, a 6.3 magnitude earthquake struck Christchurch shortly before 12:50pm at a shallow depth of four kilometres. [16] Experts believe the quakes were triggered by a previously undiscovered fault in the region, located several kilometres south of the Port Hills Fault. & Walsh, J.J. (2007). [GNS Science] Car trapped by liquefaction in Ferrymead, Christchurch. The government declared a state of national emergency, which stayed in force until 30 April 2011. [8] A group of dextral strike-slip structures, known as the Marlborough Fault System, transfer displacement between the mainly transform and convergent type plate boundaries in a complex zone at the northern end of the South Island. The following morning, officials confirmed the death of an elderly man who had been knocked unconscious from a fall in his nursery home. The city of Christchurch experienced a major earthquake centred south of the city; severe damage and casualties occurred. It was about 5 km underground. A 'severe' 6.0 magnitude earthquake has hit off the south coast of New Zealand just two days after Christchurch was rocked by a powerful quake.. [31] In some parts of the Heathcote Valley, previously dormant or non-existent natural springs surfaced because of a sudden rise in the water table, flooding some properties. It destroyed several structures and caused additional damage to many others which had been affected by previous earthquakes. Outcome measurement was mostly undertaken between 19 and 26 days after the September earthquake. [GNS Science] Aftershock detection. The earthquake … “I thought we’d dodged a bullet with the Darfield earthquake,” says Bill.

It is possible that these initiatives were protective and prevented more significant adverse consequences being observed. [50][51], In the immediate aftermath of the earthquakes, the National Crisis Management Centre was activated through The Ministry of Civil Defence and Emergency Management to manage public response to the disaster;[49] hundreds of police officers were accordingly dispatched to patrol the city streets. A news item involving 2011 Christchurch earthquake was featured on Wikipedia's Main Page in the In the news section on 22 February 2011. Although similar aftershock sequences have historically occurred around the world, such occurrences were extremely unusual in the region, which had shown low levels of seismic activity for thousands of years. [6] In the city centre, two workers were brought to hospital after being rescued from a collapsed church. The aftershocks line up along a 100 kilometre fault zone that runs from west to east and extends into Christchurch itself. 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. It was centred at a depth of 7 km (4.3 mi),[1] about 5 km (3 mi) south-east of Christchurch,[7] which had previously been devastated by a magnitude 6.2 MW earthquake in February 2011. The earthquake was felt as far away as New Plymouth and Invercargill. 185 people died as a result of the magnitude 6.3 earthquake that struck the Canterbury region on 22 February, 2011. The September quake had occurred in the early hours of the morning with family generally close at hand. There was extensive damage as a result of … It has treated over 220 serious injuries so far, even though sometimes they were working by torchlight. The magnitude 6.3 earthquake, that devastated Christchurch on 21 February 2011, is seen late in the sequence and occurred on a fault segment slightly further to the east. The Christchurch event occurred during the daytime, which increased the number of fatalities, and the buildings weren't designed for the level of shaking that occurred. The city had been comparatively lucky with both the location and timing of the earlier magnitude 7.1 Darfield (Canterbury) earthquake; the location of this one however - within 10 km of the city and at a shallow depth of 5 km - during the middle of a working day resulted in destruction, injuries and deaths.. [29], Strong ground motions caused many secondary effects, including gas leaks and widespread soil liquefaction. Christchurch Earthquake 22nd February 2011. Forty-six people suffered injuries, two of which critical, and one elderly man died after being knocked unconscious. Just after midday on the 22 nd of February 2011, a magnitude 6.3 earthquake struck Christchurch, resulting in 185 deaths.. Seismologist Bill Fry, who is also part of the Resilience to Nature’s Challenges National Science Challenge, was on earthquake duty at GeoNet that day. Emergency services remove a body from the destroyed CTV building in Christchurch, New Zealand, Thursday, February 24, 2011, after the city was hit by a 6.3 magnitude earthquake Tuesday. [10], New Zealand has a history of earthquakes. | Independent, New Zealand earthquake: buildings failed when ground turned to liquid 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. Before the Darfield earthquake there was little indication that this fault system existed and could result in large earthquakes. The June 2011 Christchurch earthquake was a shallow magnitude 6.0 M w earthquake that occurred on 13 June 2011 at 14:20 NZST (02:20 UTC).It was centred at a depth of 7 km (4.3 mi), about 5 km (3 mi) south-east of Christchurch, which had previously been devastated by a magnitude 6.2 M W earthquake in February 2011. The tremor had damaged 70 underground 11,000 volt cables, contributing to the outages,[26] and ruptured water mains, resulting in widespread street flooding. [36] The earthquake's impact extended beyond national grounds; in light of its occurrence, Insurance Australia Group reported a net claim loss of A$65 million (US$61.5 million). Follow. [27] Several days after the tremor, dislodged electrical wiring from the ongoing aftershocks sparked a small fire in a control panel at Christchurch Hospital. | Guardian, Is earthquake activity increasing? 02/22/2011 10:16 am ET Updated May 25, 2011 New Zealand Earthquake 2011: Christchurch In Ruins After 6.3-Magnitude Temblor At least 65 people have died after a massive earthquake toppled churches and tall buildings in one of New Zealand's biggest cities. This latest shock is much closer to the main population centre of Christchurch than the magnitude 7.1 earthquake that occurred on 3 September 2010, approximately 40 km west of the city, and caused significant damage. 185 people died, 164 people were seriously injured and there was major, widespread damage. | April 2010, Are yesterday's earthquakes tomorrow's disasters? 185 people were killed in the February earth quake and thousands more were injured. [12], In comparison, the South Island has experienced fewer large earthquakes. BGS seismologist Alice Walker and Dr David Kerridge discuss the aftershocks that followed the 7.1 Mw earthquake of 3 September 2010 that preceded the smaller, but more devastating, 6.3 Mw event of 21 February 2011. The magnitude 6.3 earthquake, that devastated Christchurch on 21 February 2011, is seen late in the sequence and occurred on a fault segment slightly further to the east. Three years on from the earthquake The Feed's Patrick … The magnitude 6.2 earthquake was so devastating to Christchurch on Feb. 22, 2011, because it ruptured on a fault directly underneath the city, … [32], The NZX 50 Index fell by 0.4 percent to its lowest level since 20 April. [53] Chief executives from the Commonwealth Bank sponsored an exclusive dinner in Sydney to raise money for rebuilding costs; an initial A$700,000 (US$660,000) was allocated prior to the event, with entry costs of A$10,000 (US$9,500) per ticket. [22] Widespread lighter motions were observed throughout much of the remaining region,[23] with slight property damage reported from as far afield as Dunedin. 185 people died as a result of the magnitude 6.3 earthquake that struck the Canterbury region on 22 February, 2011. The February 22 2011 earthquake was in fact an aftershock of the M 7. Le séisme de 2011 en Nouvelle-Zélande (appelé aussi séisme de Christchurch de 2011) est un tremblement de terre d'une magnitude de 6,3 survenu à 12 h 51 min 42 s heure locale (21 février à 23 h 51 min 42 s UTC), dans la région de Canterbury sur l'île du Sud en Nouvelle-Zélande.Une réplique de magnitude 5,6 est survenue à 13 h 4 heure locale (0 h 4 le 22 février UTC). Dannie Maness. Christchurch Hospital was evacuated due to damage in some areas, but soon reopened to treat the injured. Lives have been lost, people have been injured and properties have collapsed and been heavily damaged. [3], The earthquake and the precursor tremor struck during the afternoon near a populated area, where most buildings had been left in precarious conditions by the February 2011 event. The earthquake in February 2011 occurred at 12:51 p.m. and just 10 kilometers (6 miles) from the center of Christchurch. In the South Island most of the relative displacement between these plates is taken up along a single dextral (right lateral) strike-slip fault with a major reverse component, the Alpine Fault. See more ideas about Christchurch, Earthquake, Christchurch new zealand. Christchurch City lies 40 km east of Darfield, and was home to a population of approximately 370,000 at the time of the earthquake. 185 people from more than 20 countries died in the earthquake. [31] The Student Volunteer Army – which partook in silt shifting after the February 2011 quake – again prepared the recruitment of participants to initiate street clearing actions. Buildings have collapsed around Cathedral Square in downtown Christchurch. The magnitude 7.1 Mw event of 4 September 2010 produced by far the strongest ground motions ever recorded in the Canterbury region,[13] triggering a large number of aftershocks. The … Christchurch 2011 earthquake location Tuesday, February 22, 2011 at 12:51:43 PM at epicentre. 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. At least 65 people have died after a 6.3-magnitude earthquake struck Christchurch on New Zealand's South Island, Prime Minister John Key says, with fears that the toll will rise. Christchurch Earthquake 2011. See more » Kaiapoi. Magnitude: M L 6.3 Casualties: 185 deaths [39] In all, experts estimated the earthquake would increase reconstruction costs in Christchurch by about NZ$6 billion (US$4.83 billion). Due to the shallow depth and the nearby metropolitan city of Christchurch, this earthquake became a tragedy for a lot of people. Several aftershocks were reported, some registering at a 5.6 magnitude. Report. Beneath the northern and eastern Canterbury Plains, a series of active SW-NE trending thrust faults have been recognised, linked by W-E trending strike-slip faults that at least in part reactivate Cretaceous age extensional faults. 5 years ago | 19 views. It was about 5 km underground. [52] A total of NZ$285,000 (US$230,000) was allocated for donations to nine charities, including NZ$40,000 (US$32,000) to both the Red Cross Christchurch earthquake appeal and the Canterbury Earthquake Appeal Salvation Army funds. The June quake was preceded by a magnitude 5.9 ML tremor that struck the region at a slightly deeper 8.9 km (5.5 mi). [30] Several houses in the hill suburbs of Sumner and Redcliffs were affected by falling boulders from hillsides. [27] Consequently, sand boils emerged from asphalt roads, toppling a few cars and sinking another. Another tremor 5.0 ML struck the region two days later. 1 September 2010 earthquake. A… The earthquake epicentre was near Lyttelton, just 10 kilometres south-east of Christchurch’s central business district. On that day a magnitude 7.1 quake struck to the west of Christchurch. 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. | Sept 2010, Creating 'Virtual Seismometers' deep inside the Earth, Seismic interpretation of the Haiti earthquake, Near Christchurch, South Island, New Zealand. [33] In addition, the New Zealand dollar declined in the wake of the disaster, dropping by nearly 0.01 US dollar, or about 1.3%. [7] Owing to the interaction of the major Pacific and Australia Plates, much of the regional plate boundary along central South Island is characterised by land deformation. Christchurch Earthquake. The United States Geological Survey reported a magnitude of 6.0 Mwan… Mon 21 Feb 2011 19.52 EST A strong 6.3-magnitude earthquake has struck the city of Christchurch on New Zealand's South Island, seriously injuring people and damaging buildings throughout the city. On the 23 February, the day after the recent Christchurch earthquake, I had the opportunity to travel to Christchurch to spend two weeks with the New Zealand Red Cross, documenting the work of staff and volunteers as they assisted with search and rescue, and recovery operations in the wake of the magnitude 6.3 earthquake. A three-month reconstruction project was scheduled to start in October 2011, with an estimated total cost of NZ$30 million (US$24 million). [20] Despite significant energy release, the earthquakes were believed to have increased the risk of an additional aftershock of similar magnitude; calculations from GNS Science indicated a 23 percent probability of a magnitude 6.0–6.9 ML earthquake occurring in the Canterbury aftershock zone within the 12 months following the event. Christchurch, the country’s second largest city, suffered widespread damage, particularly in the central city and eastern suburbs. (This is 23:51 21 February UTC). Civil defence declared a category 3 emergency, … Many of those killed are as a result of debris falling and crushing the occupants of two buses in Christchurch. Christchurch Earthquake 2011. It had a magnitude of 6.3, though was officially classified—scientifically speaking—as an aftershock of the 2010 quake. In the North Island the displacement is mainly taken up along the Kermadec subduction zone, although the remaining dextral strike-slip component of the relative plate motion is accommodated by the North Island Fault System (NIFS). It had a magnitude of 6.3, though was officially classified—scientifically speaking—as an aftershock of the 2010 quake. Of the 185 victims, 115 people died in the Canterbury Television building alone, while another 18 died in the collapse of PGC House, and eight were killed when masonry fell on Red Bus number 702 in Colombo Street. The city’s central business district was severely hit with widespread building and infrastructural damage. Restoration costs in Christchurch following the February earthquake were estimated to increase by NZ$6 billion (US$4.8 billion) because of the additional damage from this event. Nov 25, 2018 - Explore Lorina Adkins's board "Christchurch Earthquake", followed by 209 people on Pinterest. Search and rescue went on for a long time. A personal view of the earthquake that happened in Christchurch on Feb 22, 2011 and the subsequent quakes thereafter. near Christchurch, South Island, New Zealand. The deadliest earthquake in New Zealand was a 7.8 event that occurred at Hawkes Bay in 1931; leaving 256 dead. Earthquake aftermath footage - Christchurch Earthquake 23 December 2011 Disastrous Earthquakes.

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