Quite the same Wikipedia. These northeast trending tectonic ruptures are … In the hours after the Edgecumbe earthquake, accounts of the disaster became wildly exaggerated. A foreshock just minutes before had cut the power supply and many people had moved away from heavy machinery and out of their houses. In Edgecumbe the ground shaking cut deep gashes in roads and footpaths, damaged river embankments, tipped a diesel locomotive off its tracks, and ripped power transformers, weighing … The Edgecumbe earthquake was the first in New Zealand since the 1968 Īnangahua quake to cause … It was estimated that the Edgecumbe earthquake cost $300 million. Please ensure that you have JavaScript enabled in your browser. Eileen McSaveney, 'Historic earthquakes - The 1987 Edgecumbe earthquake', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/historic-earthquakes/page-11 (accessed 24 January 2021), Story by Eileen McSaveney, published 12 Jun 2006, reviewed & revised 28 Mar 2011, updated 1 Nov 2017. Edgecumbe was evacuated with about 1600 locals forced to leave their homes. The New Zealand Embassy in Washington was inundated with calls from worried people seeking news. Known as the Edgecumbe earthquake, it caused heavy damage in the towns of Edgecumbe, Te Teko, Kawerau, Thornton and Matata. N0o m surface ruptures along old faults, The earthquake was the most damaging New Zealand had experienced in recent decades, with approximately 50% of the houses in Edgecumbe being damaged and 35 people being seriously injured. Edgecumbe Earthquake, N.Z., 1987 Edgecumbe Earthquake, N.Z., 1987; Nicholson, … The Edgecumbe earthquake of 1987 was an earthquake measuring 6.3 on the Richter scale that struck the Bay of Plenty region of New Zealand on 2 March 1987 just after 1.42 pm, centred on the town of Edgecumbe.The earthquake was very shallow, being centred approximately 8 km from the Earth's surface. A foreshock just minutes before had cut the power supply and many people had moved away from heavy machinery and out of their houses. This probably saved a number of lives. Two milk tankers were thrown on their sides. At one point the land close to the fault dropped 2 metres. This probably saved a number of lives. Just after 1:42pm on 2 March, 1987, an earthquake measuring 6.3 on the Richter scale struck the Bay of Plenty. In the two months before the big shock, there had been a swarm of earthquakes of different sizes and intensity. The most damage on 2 March was suffered by Edgecumbe, but Whakatane and Kawerau were also severely damaged. The Edgecumbe earthquake was the first since the 1968 Īnangahua quake to cause major damage. Minutes later a much stronger quake rocked the region. The Rangitaiki River stopped flowing for about 10 seconds, then came pouring back. Another was trapped under 11 huge circular saws, each of them 2 metres in diameter. This book, written by consulting engineers George Butcher and Latham Andrews and economist Graham Cleland, combines a study of the damage caused by the 2 March 1987 Eastern Bay of Plenty earthquake to domestic, commercial and industrial buildings and infrastructure in the region and the estimated costs … 1987 Edgecumbe earthquake. One person died from a heart attack, possibly caused by the shock of the earthquake, but there were no other deaths. The probable cause of the Edgecumbe earthquake was a sudden release of energy from an overstretched part of the underlying Pacific Plate. The Pleistocene-to-Holocene Edgecumbe volcanic field covers about 260 km2 of Kruzov Island west of Sitka in the SE panhandle of Alaska. The 1987 M W 6.5 Edgecumbe earthquake caused localised liquefaction and lateral spreading in parts of the Rangitaki Plains in the Bay of Plenty, New Zealand. Liquefaction and lateral spreading was well documented proximal to the waterways in areas underlain by recent fluvial and … [GNS Science] Magnitudes: M L 6.1, M W 6.5, M S 6.6. This main shock, at 1.42 p.m., had a magnitude of 6.3 and was centred north of Edgecumbe. At the Tasman Pulp and Paper Mill in Kawerau a loaded logging truck toppled onto its side. The earthquake had been caused by movement along the fault; the land to the north-west had dropped by up to 2 metres. Whilst most of the large earthquakes of 2007 were distant from populated centres or too deep to cause harm, the big shake of December 20 was close enough to cause significant damage in Gisborne city. 0 that occurred in an area of about 70 × 50 km in the Bay of Plenty, New Zealand, between 1987 February 21 and March 18. Everywhere people struggled to keep on their feet. Current filters. © Crown Copyright. Abstract The intensity of shaking caused by the main shock of the M 6.3 Edgecumbe earthquake of 1987, as shown by ground def~nnation, property damage and the impressions of witnesses, and the distribution of intensities about the epicentre, is compared with expectations based on models assumed by Smith. One woman watched as water poured out of her swimming pool and settled, 5 metres away. Minutes later a much stronger quake rocked the region. Edgecumbe is a town in the Bay of Plenty of the North Island of New Zealand, 15 kilometres to the west of Whakatane and eight kilometres south of the Bay's coast. About 130 of these occurred prior to the main shock (M L 6.3) on March 2. Damage caused by the Edgecumbe earthquake on Whale Island was largely confined to minor rockfalls and two larger failure slis (op scarsn old) on the steep coasta cliffsl Th. On the afternoon of 2 March 1987, at 1:42pm, the Bay of Plenty region was rocked by a magnitude 6.3 earthquake. The region which sank downward is now more prone to flooding. Liquefaction and associated lateral spreading during the 1987 M L 6.3 Edgecumbe earthquake caused severe damage to parts of Whakatane, New Zealand. A fissure up to 3 metres wide and 3–4 metres deep opened up along much of the fault, although some sections were marked just by zones of cracks. At Bay Milk Products in Edgecumbe, pipes and silos collapsed, spilling milk. Here, Brad explains the science behind earthquakes and what causes them. The 1987 M L 6.3 Edgecumbe earthquake triggered localized liquefaction and associated lateral spreading in the township of Whakatane in the North Island of New Zealand. Two milk tankers were thrown over onto one side by the force of the quake. An 80 tonne train toppled sideways in the Edgecumbe railway yards, and several kilometres of railway line in the area buckled in the earthquake. Minutes later, at 1:42pm, a much stronger 6.3 magnitude quake centred between Matata and Edgecumbe struck. One person died from a heart attack, possibly caused by the shock of the earthquake. The earthquake … At the N.Z. Edgecumbe - WikiMili, The Free Encyclopedia - WikiMili, The Free Encyclopedia One man was thrown over the rail of a catwalk to the concrete floor 3 metres below. It is the main service town for the agricultural region surrounding the plains of the Rangitaiki River, which flows through the town. The M6.5 event was soon named after the town. A major worry was the large earthfill hydro dam at Matahina on the Rangitāiki River. The 1929 Arthur’s Pass and Murchison earthquakes, The 2010 Canterbury (Darfield) earthquake, Personal stories of the 2010–11 Canterbury earthquakes, Marlborough earthquakes – 2013 and 2016, Personal stories of earthquakes since 1942, Next: Page 12. The Edgecumbe district is a typically lush part of the Bay: rich dairy and horticultural lands, set on a wide, well-watered plain, surrounded by large exotic forests. During the preceding month, swarms of earthquakes had unnerved the residents of Kawerau and Edgecumbe and distinct foreshocks were felt at Matata and Thornton prior to the main earthquake. Abstract. It is now known as the Edgecumbe Fault. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.. At Bay Milk Products in Edgecumbe, huge stainless steel milk silos collapsed, spilling thousands of litres of milk. 50% of the houses in Edgecumbe were damaged. The hypocentre was at a shallow depth of 8 km. Recent studies utilizing extensive CPT investigations indicate that much of the Whakatane Central Business District is underlain by sediments with a low cyclic resistance to liquefaction. The 1987 Edgecumbe earthquake measured 6.5 on the moment magnitude scale and struck the Bay of Plenty region of New Zealand at 1:42 pm on 2 March. Although not of an exceptional magnitude, it was damaging because it was very shallow. The number, distribution, … The Edgecumbe earthquake, 1987 March 2 (M L 6. BiblioWeb: app01 Version 3.26.0 Last updated 2021/01/20 07:34, After the Paint n’ Pen art exhibition, local…, #PopUpPenguins are in Christchurch! Liquefaction and lateral spreading resulted in severe damage to infrastructure and lifelines, including NZ$10 million worth of damage to flood control and drainage … The tremors produced a massive dust cloud on Moutohorā (Whale Island), an extinct volcano off the coast. Earthquakes and electrical equipment (on photo: Workmen are dwarfed by this 20-tonne transformer, shaken from its mountings at the Edgecumbe substation; By teara.govt.nz) Causes – Location The majority of earthquakes occur on the fault lines which demarcate the tectonic plates from the earth’s crust. Distillery Company, tanks of spirits collapsed, saturating the ground with vodka and gin. Kawerau was one of the worst-affected towns in the 1987 Edgecumbe earthquake. They opened the floodgates to lower the lake level, but controlled the flow to ensure the river would not overtop its stopbanks downstream. Casualties: 25 injured. The intense ground-shaking caused by the earthquake led to a large number of ground surface failures, including sand boils, ridge-top shatters and debris avalanches on steeper slopes. The earthquake was centred between Matata and Edgecumbe. On the afternoon of 2 March 1987 at 1.35 p.m, a magnitude 5.2 earthquake rocked the Bay of Plenty region. On Thursday, the Rangitaiki River burst its stop bank, resulting in widespread flooding of the town. In Edgecumbe and Te Teko water and sewage systems were not working. The eruption of Mount Tarawera in 1886 and the 1987 Edgecumbe earthquake were two disasters related to geological activity in the volcanic plateau. Four aftershocks with magnitudes greater than 5 occurred in the next six hours, and smaller aftershocks were felt for weeks. Many roads were blocked by slips or had split open, making it impossible to use them. … All non-text content is subject to specific conditions. The most spectacular effect of the Edgecumbe earthquake was the 7-kilometre-long rift that appeared across the Rangitāiki Plains – the Edgecumbe Fault. Just better. Because of the earthquake, many people left and therefore Edgecumbe's population dropped considerably. At 1.35 p.m. on 2 March 1987, a magnitude 5.2 earthquake struck the Bay of Plenty region, cutting power and sending many people outdoors. Edgecumbe is a town in the Bay of Plenty of the North Island of New Zealand, 15 kilometres to the west of Whakatane and eight kilometres south of the Bays coast. The largest aftershock was measured at 5.5 and struck at 1:52 pm. The damage it caused was most severe in Edgecumbe and nearly as severe in Kawerau, Matata, Thornton and Te Teko, with surface ruptures spreading across the Rangitaiki Plains. If you are still seeing this message and JavaScript is enabled in your browser then please either contact the library or fill in our technical support form and we will try to fix the problem. Soon after, she was driving hurriedly down a road to check her home when her car became airborne and flew 6 metres across the rift, landing at the bottom of the scarp. The Bay of Plenty was well named by James Cook for its food and timber resources – and it is still a place of bountiful produce. Water flows were disrupted in a number of places. A Singapore newspaper quoted ‘the Police’ as saying that 95% of homes in the Kawerau, Whakatāne and Edgecumbe areas were uninhabitable. A woman who had been picking fruit was thrown from a ladder by the quake. One man ended up lying under a pile of circular saw blades. Short video showing some of the Damage of the 1987 Edgecumbe earthquake which struck at 13:42 March 2nd 1987. In … Some roads cracked or acquired ‘judder bars’ as the ground buckled. In 1987, a large earthquake centered on Edgecumbe shook the Bay of Plenty, causing widespread damage and causing much of the population to leave Edgecumbe. 3), was associated with renewed tectonic rupture on the Edgecumbe Fault, renewed movement on the Onepu and Rotoitipakau Faults, and several new surface breaks—the Awaiti, Otakiri, Te Teko, and Omeheu Faults. e total amount o involvef debris i dn slope failures is estimated to be in excess of 1503. Because the earthquake was very shallow, at about 8 kilometres from the earth’s surface, it was felt over a large area. It … These sand boils are some of many that formed near Powell Road, as a result of the extensive liquefaction caused by the earthquake. Railway tracks were twisted and bent, and a diesel-electric locomotive toppled over. The Edgecumbe earthquake sequence consisted of more than 600 shocks of M L ≥ 3. The earthquake was centred between Matata and Edgecumbe. All text licensed under the Creative Commons Attribution-NonCommercial 3.0 New Zealand Licence unless otherwise stated. 40 houses in Kawerau were evacuated because the hillside above them was unstable and could have slipped. It had a population of 1626 in the … Below the dam, the residents of Te Mahoe were evacuated as a precaution. Find out…, Caught in the crunch: earthquakes and volcanoes in New Zealand, Christchurch City Libraries' Terms of Use and Privacy Policy, Search our catalogue for information about theÂ. Staff found minor cracks in the roadway and concrete abutments. The epicentre was 2.24 kilometres (1.39 mi) south-south-east of the town of Matata, and 15 kilometres (9.3 mi) north-north-west of Edgecumbe… Mill workers escaped from falling debris through a maze of twisted stairs and walkways. 3000 people were moved out from south of the Matahina hydro dam in case it gave way. Others left their homes and camped or stayed in local schools, halls or marae. 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