21st February 2011 ... 100,000. Natural Hazards (Tectonics) Case Study - Earthquake in a HIC - Christchurch earthquake DHS Geography. Rugby World Cup matches so lost What ... Changing Places Case Study: The 2010-11 Canterbury (NZ) Earthquakes . A plan had been outlined over the six months following the 2010 earthquake and in February 2011, a fully functional digital media communications strategy was ready to be deployed. v Christchurch exceeded 1.8g (i.e., 1.8 times the acceleration of gravity), with 2.2g in some areas, the highest ever recorded in New Zealand and one of the highest recorded worldwide. collapsed income and jobs people and emergency services to rupturing During the 2010 Canterbury earthquake these layers of silt and sand were shaken and stirred up, liquefaction occurred in some areas but was mild in comparison to the Christchurch earthquake. This included getting acquainted with the important hash tags that aided in sourcing relevant information from context specific conversations. 230,000. Many speculated the earthquake erupted as a repercussion from a 7.1 magnitude earthquake that struck Darfield six months earlier in September 2010. c As a comparison, the 2010 Haiti earthquake was a magnitude 7.0 with an estimated 0.5g PGA. Official disaster recovery units relied heavily on a rigid, top down approach that was hierarchical in structure. A Case Study from Christchurch, NZ Joanne R. Stevenson, Resilient Organizations Research Program joanne.stevenson@canterbury.ac.nz, +64 21 029 48738 On September 4, 2010, Christchurch, the second largest city in New Zealand, was seriously affected by an M 7.1 earthquake caused by the rupture of a previously unmapped fault beneath the These forums were the primary channels through which information was transmitted and was also used effectively to keep a tab on public response. This was especially prevalent amongst the affected population. #eqnz finally emerged as the default hash tag with further iterations such as #eqnzcontact and #eqnzaccom in the pipeline. In the video the ... Earthquake sequence’ is more useful (rather than, ‘the earthquake’ for example). The epicenter of the 2011 earthquake was located at Lyttelton, a port town very close to Christchurch which was why it was more severe in impact than the earlier earthquake that occurred in 2010. Christchurch earthquake 2011 - MEDC Case Study, No public clipboards found for this slide. One of the main reasons these two distinct groups were not able to establish a common ground for collaboration was the lack of trust in the information supplied by non official rescue units despite the huge demand for relevant information from the affected population. The epicentre was 40km away from Christchurch with a shallow focus of 10km. tourism and income, Start studying A Level Geography Tectonic Hazards Case Studies. only in a limited capacity. aftershock of the September earthquake struck with a magnitude of 6.3 on the Richter scale. AWS Case Study: GeoNet. 7.3. There was a damage of 100000 properties and demolish of 10000 by the earthquake. The OPEN DATA’S IMPACT | Open Data’s Use After Christchurch Earthquakes 4 I. The main port was badly damaged. @CEQgovtnz was the largest contributing Twitter subscriber to the #eqnz hashtag during the 2011 earthquake with nearly 2500 tweets in the first couple of weeks after the initial tremors were experienced. CONTEXT AND BACKGROUND New Zealand is a high-income Pacifi c Island nation with a population of 4.6 million.1 It was ranked seventh on the UN Human Development Index in 2013.2 The country is located on the Pacifi c Ring of Fire, where the Australian and Pacifi c plates meet, and is seismically active. Large icebergs (the size of 20 i o Mahoney & J. Kupec Aurecon New Zealand Limited. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. o Case Study: Christchurch September 2010/February 2011 If you continue browsing the site, you agree to the use of cookies on this website. New Zealand. During the earlier earthquake in 2010, disaster recovery teams had become aware of how the exchange of disaster related information went viral especially on social media platforms such as Facebook and Twitter. Locals were collectively sending and receiving more than 100 tweets across the internet every minute shortly after the initial tremors were felt and the earthquake quickly achieved a trending topic status. ... During the Christchurch earthquakes in September 2010, GNS Science used a manual notification system that required two geophysics officers to be on call to issue alerts if an earthquake or volcanic eruption occurred. Activity on Twitter was intense as local New Zealanders collectively sent out more than 50,000 messages on the day the earthquake struck, February 22. However, despite extensive use of social media platforms to mobilize rescue and relief resources, the lack of coordination between official squads and volunteer groups still persisted. Killed 185 people. A number of volunteers took the initiative to create online pages that merged information collected from official sources with location specific details. quake lasted 40 seconds and was felt across South Island. The city’s central business district was severely hit with widespread building and infrastructural damage. Nearly 200 people died. Earthquake Case History: 2010 Mw = 8.8 Mega-thrust Earthquake, Maule, Chile 5/2/13 By Travis Eddy 1. the city of Christchurch after the 2010-11 Canterbury Earthquakes (New Zealand). n Cars fell into sink holes Case study sheet. n Case Studies Christchurch, New Zealand - On the 22nd of February 2011 at 12:51 pm, Christchurch, NZ was struck by a 6.3 magnitude earthquake. Christchurch 22nd February 2011. c 300,000 people were injured. However, volunteer groups still had to deal with delays and difficulties in gaining access to local information and syncing their rescue efforts with those of official teams. 2). Many local residents proactively generated pools of information. 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 am local time on 4 September, and had a maximum perceived intensity of X (Extreme) on the Mercalli intensity scale. epicentre was 10km away from Christchurch with a shallow focus of 5km. The Twitter hash tag #eqnz that came into existence during the earlier earthquake in 2010 became the driving tool behind interexchange of information. The earthquake struck the city of Christchurch in New Zealand on 22 February 2011. For instance, cleanup activities, call center support and managing the logistics of distributing relief supplies were some of the activities that were deployed with speed and precision. Case Study: Christchurch, New Zealand. The 2011 Christchurch earthquake was another case of such a blind earthquake, which has not yet been associated with any known geological faults. n Despite an extensive presence in the digital space, government sponsored disaster recovery teams were able to work alongside other stakeholder groups such as virtual volunteers, NGOs, local businesses etc. were killed when the CTV building Training modules that equipped human personnel with the expertise required to process information through various social media platforms was identified as an opportunity for improvement. 50% + of Central City buildings severely damaged including the city’s cathedral which lost its spire. This was particularly apparent in the manner in which they employed social media emergency management tools during the earthquake. Spire of the Christchurch cathedral We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. The city’s central business district was severely hit with widespread building and infrastructural damage. 80% of the city was without electricity. Christchurch could no longer host Affected communities were able to find and access timely assistance, guidance and support. m In the case of future earthquake-induced effects on flood hazards in Christchurch, we view the probability of future liquefaction-inducing earthquakes and associated subsidence and increased flood hazards in eastern Christchurch over the 50, 100, 475, and 2500-year time-scale to be high to almost certain. SMEM - Case Study - Christchurch Earthquake. Urgent requests and high alert issues were immediately forwarded to incident commanders to be assessed and conclusively resolved. Rock falls in the hills around Many medieval buildings and monuments with considerable cultural value were destroyed. 50% of the central city’s buildings Lyttelton harbour much more damage and had a greater impact on the area. 2 The earthquake’s epicentre was located some 25 miles (40 km) west of Christchurch near the town of Darfield, and the focus was located about 6 miles (10 km) beneath the surface. The Christchurch City Council kept the local population informed and up to date through a disaster recovery website on WordPress along with a Twitter account and Facebook page. Eight hospitals collapsed. a 181 people were killed, 80 of whom The earthquake struck at 12:51 pm on Tuesday, 22 February, 2011. Nearly 200 people died. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The objective of this study is to present high-quality liquefaction case histories from the 2010–2011 Canterbury earthquake sequence and to use these case histories to evaluate three commonly used, deterministic, cone penetration test (CPT) based simplified liquefaction You can change your ad preferences anytime. Underneath this hard layer however, was underlying layers that consisted of silt and sand mixed in with water. The delay in addressing the needs of these groups highlighted the inherent dependencies of social media platforms and Web 2.0 technologies on a robust infrastructural foundation. When the earthquake in Christchurch struck, official emergency management squads were well prepared to take advantage of social media platforms for coordinating their rescue efforts. l During the earthquake in September, 2010, there was some initial confusion as several hash tags such as #nzquake, #chch, #christchurch, and #christchurchquake, were competing for preference. A Christchurch Case Study 2013 NZSEE Conference D.P. 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This PGA is considered unusually high for a M6.3 quake. 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. Many speculated the earthquake erupted as a repercussion from a 7.1 magnitude earthquake that struck Darfield six months earlier in September 2010. Case study of 2010–11 Christchurch earthquakes The Christchurch earthquakes of 2010–2011 consisted of numerous events, with the significant events being the M w 7.1 Darfield earthquake on September 4, 2010, and the destructive M w 6.3 earthquake on February 22, 2011, which caused many buildings to collapse and the loss of 185 lives [ 47 ]. liquefaction made it difficult for The Canterbury Earthquake Recovery Authority (formerly known as the Canterbury Earthquake Authority) created an extensive presence on Twitter through its @CEQgovtnz account. Please prove you are human by selecting the Key. t In the midst of all the chaos and confusion that ensued, disaster recovery through social media emergency management took centre stage as the primary communications channel for sharing information, sourcing aid and relief material. Copyright © DisasterRecovery.org 2020. i some structural damage, only two people were injured. See our Privacy Policy and User Agreement for details. the study of its potential triggering by the 1971 San Fernando earthquake was only made possible after its rupture plane and hypocenter depth were resolved (Stein et al. were severely damaged An unreinforced masonry building located on First Avenue in Salt Lake City is demolished on Wednesday, July 3, 2019. l Now customize the name of a clipboard to store your clips. knee deep water in most areas Minor injuries caused to approx 6800 people. collapsed i Damage to roads through Haiti Earthquake Died. Severe liquefaction On February the 2nd 2011 at 12:51 pm an Many web pages were developed with specific objectives such as: Despite the enormous benefits that both official and non official disaster recovery units capitalized on, a significant percentage of the affected population was cut off from social media due to persistent power outages and compromised communications hardware. 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. 733 POST-DISASTER CONSTRUCTION WASTE MANAGEMENT STRATEGIES: CASE STUDY CANTERBURY EARTHQUAKE Niluka Domingo1, Hao Ju Luo2 and Temitope Egbelakin3 1,2 & 3 School of Engineering and Advanced Technology, Massey University Phone +64-9-213.6574, email: n.d.domingo@massey.ac.nz Business were put out of action for football fields) calved into Tasman The epicenter of the 2011 earthquake was located at Lyttelton, a port town very close to Christchurch which was why it was more severe in impact than the earlier earthquake … (the one person had a heart attack possibly from shock of the earthquake)  It was based on the Greendale fault, … c See our User Agreement and Privacy Policy. 6 months earlier on 4th September 2010 another massive magnitude 7.1 earthquake caused significant damage to Christchurch and the central Canterbury region, but with no direct fatalities. 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