2011 christchurch earthquake magnitude

2011 christchurch earthquake magnitude

Forty-six people suffered injuries, two of which critical, and one elderly man died after being knocked unconscious. 3 000 buildings in total were inspected, of that total 45% were deemed unsafe and were given a yellow or red sticker. [39][40] Despite its moderate magnitude, the preceding magnitude 5.6 ML tremor caused several two-story buildings at a road intersection to collapse. 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 . Authorities proposed to set up an outdoors emergency operations centre, as well as a public welfare centre to provide shelter to victims overnight. (This is 23:51 21 February UTC). 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. [27] Several days after the tremor, dislodged electrical wiring from the ongoing aftershocks sparked a small fire in a control panel at Christchurch Hospital. The June earthquake affected roughly 400,000 people, most of whom may have experienced strong (MM VI) shaking. Christchurch, the country’s second largest city, suffered widespread damage, particularly in the central city and eastern suburbs. Liquefaction happens when underground water in the soil comes to the s… 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. [27] Officials ordered the precautionary closure of bridges in the area,[28] as one bridge had already succumbed to the strong shaking. 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). [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. [27] Consequently, sand boils emerged from asphalt roads, toppling a few cars and sinking another. On Tuesday 22nd of February 2011 there was a 6.3 magnitude earthquake at 12:51pm. Concerns arose about the condition of previously damaged structures, and the 13 June earthquakes caused further distress among many victims. Reports indicate that at least 154 people have been killed and many are still trapped under rubble as a result of buildings collapsing during the earthquake. M 6.2 Christchurch Tue, Feb 22 2011. The … In February 2011 Christchurch was struck by a 6.3 magnitude earthquake which killed 185 people. 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. Nearly 200 people died. Most Cantabrians were away from their homes when the 6.3-magnitude earthquake struck at 12.51 p.m. on 22 February 2011. The BGS detected a 6.3 Mw earthquake at 23:51 UTC on 21 February 2011 located The September quake had occurred in the early hours of the morning with family generally close at hand. Data from GNS Science, New Zealand. 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… Civil defence declared a category 3 emergency, … Due to the shallow depth and the nearby metropolitan city of Christchurch, this earthquake became a tragedy for a lot of people. Here is a … | April 2010, Are yesterday's earthquakes tomorrow's disasters? South Island earthquakes: 3.4 magnitude near Christchurch, 5.0 magnitude in Fiordland 18 Apr, 2020 06:05 PM 4 minutes to read As of 3.40pm today, 6172 people had registered as feeling the earthquake. The earthquake produced severe shaking, registering at VIII on the Mercalli scale in and around Christchurch. Are yesterday's earthquakes tomorrow's disasters? Outcome measurement was mostly undertaken between 19 and 26 days after the September earthquake. Several aftershocks were reported, some registering at a 5.6 magnitude. A… [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. The eastern … [GNS Science] Car trapped by liquefaction in Ferrymead, Christchurch. 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. Lives have been lost, people have been injured and properties have collapsed and been heavily damaged. 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 earthquake … An earthquake occurred in Christchurch on 22 February 2011 at 12:51 p.m. local time (23:51 21 February UTC) and registered 6.3 on the Richter scale. Black circles represent earthquakes from September 3, 2010, until February 21, 2011. [54], Mouslopoulou, V., Nicol, A., Little, T.A. A devastating earthquake with a 6.3 magnitude Richter scale reading struck the city of Christchurch in February 2011, a sprawling metropolis and one of the more densely populated cities in New Zealand. 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. 1 September 2010 earthquake. The earthquake in February 2011 occurred at 12:51 p.m. and just 10 kilometers (6 miles) from the center of Christchurch. On 22 February 2011, a 6.3 magnitude earthquake struck Christchurch shortly before 12:50pm at a shallow depth of four kilometres. 185 people from more than 20 countries died in the earthquake. Many aftershocks have been reported; the largest at 5.5 Mw. The government declared a state of national emergency, which stayed in force until 30 April 2011. [43] The Christchurch Arts Centre sustained similar damage, though it had been in a precarious state prior. Dannie Maness. Since the European settlement, the largest on record was a magnitude 8.2 ML major earthquake that occurred on 23 January 1855 near the Wairarapa plains of the North Island. It had a magnitude of 6.3, though was officially classified—scientifically speaking—as an aftershock of the 2010 quake. 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. Browse more videos. 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.. [34] Following a dramatic decline in event numbers, Vbase, a venue management company, disemployed 151 of its full-time staff. The February 22 2011 earthquake was in fact an aftershock of the M 7. [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. Prime TV documentary on the Christchurch earthquake. On 22 February 2011, at 12:51 pm (lunchtime), Christchurch was struck by a magnitude 6.3 earthquake. Maximum ground motions registered at VIII (severe) on the Mercalli intensity scale in Christchurch, while strong shaking (MM VI) was felt in adjacent populated areas such as Rolleston and Lincoln. The earthquake downed phone lines and cut off power to 54,000 households. [23] It caused damage to buildings and infrastructure alike, collapsing or otherwise destroying several homes. As the earthquake struck at a busy time and at the town centre, a busy place more, damage and casualties happened then the previous 7.1 magnitude earthquake in 2010 than the 6.3 magnitude earthquake in 2011, more people were killed, a total 185 deaths and 2 … [38] Preliminary assessments found that over 100 additional buildings had been rendered beyond repair. [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. See more » Kaiapoi. It was a 6.3 magnitude earthquake and the focus was very shallow at 4.99 kilometres deep. In the ten minutes after it hit, there were 10 aftershocks of magnitude 4 or more. 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. [30] Several houses in the hill suburbs of Sumner and Redcliffs were affected by falling boulders from hillsides. Christchurch City lies 40 km east of Darfield, and was home to a population of approximately 370,000 at the time of the earthquake. [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). 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). (This is 23:51 21 February UTC). 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. 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). [42], Despite earlier renovation attempts, authorities were considering the complete demolition of the 130-year-old Christchurch Cathedral. The city’s central business district was severely hit with widespread building and infrastructural damage. GNS Science is warning of more aftershocks in coming days as thousands of people face a night without power after magnitude 6.0 and 5.5 earthquakes rocked Christchurch. The magnitude 6.2 earthquake was so devastating to Christchurch on Feb. 22, 2011, because it ruptured on a fault directly underneath the city, … [49] At Christchurch International Airport, officials halted operations after the earthquake, but all flights resumed later that day. [44] The tower of the historic Lyttelton Timeball Station, which endured damage from the February 2011 earthquake, collapsed before dismantling work on the building could be completed. The city of Christchurch experienced a major earthquake centred south of the city; severe damage and casualties occurred. The 10th anniversary of the February 2011 earthquake will be marked with a civic memorial service and a free concert featuring Bic Runga. A news item involving 2011 Christchurch earthquake was featured on Wikipedia's Main Page in the In the news section on 22 February 2011. The earthquake was a direct result of strike-slip faulting at the eastern end of the rupture zone of a strong magnitude 6.2 MW earthquake, which occurred on 22 February 2011 along the Port Hills Fault. Is earthquake activity related to the Moon or Sun? [45] Lyttelton Port, a major harbour in the region, suffered additional damage from the tremors and underwent full engineering assessments. [14], The magnitude 6.0 Mw earthquake occurred inland on 13 June 2011 at 14:20 NZST, (02:20 UTC) at a shallow depth of 7 km (4 mi),[1] about 5 km (3 mi) to the south-east of Christchurch, New Zealand. Nearly 200 people died. 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. In the first week, the earthquake had generated more than 361 aftershocks the largest aftershock occurred only 2 hours after the main shock which had a magnitude of 5.9. 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. 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. [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 earthquake in February 2011 occurred at 12:51 p.m. and just 10 kilometers (6 miles) from the center of Christchurch. M 6.2 Christchurch Tue, Feb 22 2011. 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. [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. On that day a magnitude 7.1 quake struck to the west of Christchurch. “I thought we’d dodged a bullet with the Darfield earthquake,” says Bill. [5][25], In the wake of the earthquake, multiple phone lines were down, and scattered power outages affected about 54,000 households. 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. [17] Weeks later, a magnitude 5.4 ML tremor jolted Christchurch overnight on 22 June, causing additional damage and prompting evacuations. Another tremor 5.0 ML struck the region two days later. 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. 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 second (Christchurch) earthquake (Mw = 6.2) on 22 February 2011, caused by a thrust fault, affected the same region. Crushed cars are seen in a car parking building on February 22, 2011 in Christchurch, New Zealand. Christchurch, the country’s second largest city, suffered widespread damage, particularly in the central city and eastern suburbs. 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. [48], In light of the possibility of aftershocks, police evacuated shopping malls and office buildings around the city. [39] In all, experts estimated the earthquake would increase reconstruction costs in Christchurch by about NZ$6 billion (US$4.83 billion). [6] In the city centre, two workers were brought to hospital after being rescued from a collapsed church. Water pipes, roads, bridges, power lines, cell phone towers and ordinary phone lines were broken or damaged. Several smaller aftershocks followed. [24] There were at least 46 injuries: falling debris struck several people, and two others were hospitalised in critical condition. Report. Seismologists began to record the biggest tremor, a magnitude 6.3, on their equipment at 12:51 and 43 seconds local time (23:51:43 GMT) - right in the middle of Christchurch's day. Christchurch Earthquake 2011. Buildings have collapsed around Cathedral Square in downtown Christchurch. © UKRI document.write(new Date().getFullYear()), BGS geologist caught up in Christchurch earthquake, Environmental Baseline Monitoring in the Vale of Pickering, A Comparison of the Folkestone and Market Rasen Earthquakes, Seismogenesis and State of Stress in the UK, Monitoring Volcanic Eruptions Using Interferometry. Nov 25, 2018 - Explore Lorina Adkins's board "Christchurch Earthquake", followed by 209 people on Pinterest. [15] They were succeeded by multiple lighter aftershocks; the strongest, a moderate magnitude 5.1 ML struck a minute after the event. [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. 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. [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. It was about 5 km underground. 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. [21], Focused only several kilometres below the surface, the earthquake resulted in significant shaking over a large portion of central-eastern South Island.

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