At the latitude of this event, the Pacific plate moves towards the WSW with respect to the Australian plate at a rate of approximately 41 mm/yr. Performance of Highway Structures in the 2013 Lake Grassmere Earthquake. Der Lake Grassmere liegt etwa 30 km südlich von Blenheim und 11 km südlich der Mündung des Awatere River. Aftershocks are not included, unless they were of great significance or contributed to a death toll, such as the M 6.3 the Lake Grassmere earthquake to also look for evidence of primary surface fault rupture, on-ground field visits were conducted around the Wellington Harbour area (both earthquakes) and eastern Marlborough (Lake Grassmere earthquake only). the magnitude 6.6 Lake Grassmere earthquake on Friday 16th August 2013 as well as a number of large foreshocks and aftershocks. The M 6.5 (USGS) August 16, 2013 Lake Grassmere earthquake, south of Blenheim, New Zealand, occurred as the result of strike-slip faulting on or near the boundary between the Pacific and Australia plates. Annual Conference, Christchurch; Yeo E H. 1987. Wellington was also moderately shaken, which perhaps brought home to the capital city, the magnitude of what Christchurch was still going through. Most of the buildings in Seddon were damaged in some way, with many declared uninhabitable. It was a shallow earthquake which had a hypocentre at a depth of 8 … Damage to Wellington, only 80 kilometres north-east of the epicentre, was slight, but traffic chaos ensued as most people in the centre of the city tried to get out as quickly as possible. Only earthquakes with a magnitude of 6.0 or greater are listed, except for a few that had a moderate impact. Dubbed the Lake Grassmere earthquake, it struck at 2.31pm (1231 AEST) on Friday 10km southeast of the Marlborough town of Seddon at a depth of 8km, followed by a series of scary aftershocks. On the 16 th August 2013, at 2:41pm NZST, a M W 6.6 earthquake struck at a very shallow depth of 8 kilometres underneath Lake Grassmere, in the extreme north-east of the South Island of New Zealand. The climate, with a low average rainfall of 585 millimetres (23.0 in) and prevailing strong and dry north-westerly winds, provides Lake Grassmere with the suitable conditions required for natural economic salt production. You’re in a cavity 200 m underground, with 500 tonnes of water per second cascading down the penstocks from the lake above. The epicentre was located about 10 km south-east of Seddon, under Lake Grassmere, with a focal depth of 8 km. These two events and other aftershocks generated data that enabled a detailed analysis of five buildings in the Wellington Region which are … Author: R. Amigh, M. Ghamgosar and C. Wu. The 2013 Lake Grassmere earthquake was a magnitude 6.6 earthquake that occurred at 2:31:05 pm (NZST) on Friday 16 August 2013. Damage to Wellington, only 80 kilometres north-east of the epicentre, was slight, but traffic chaos ensued as most people in the centre of the city tried to get out as quickly as possible. The July/August 2013 Lake Grassmere earthquake sequence produced two notable events which resulted in peak ground accelerations (PGAs) in excess of 0.1g on both sides of Cook Strait (GNS Science, 2013). Abstract: On 16 August 2013, a magnitude Mw 6.6 earthquake occurred 35 km south-east of Blenheim in the South Island, New Zealand. The huge salt stacks at the Lake Grassmere saltworks are a distinctive sight for motorists travelling on State Highway 1 between Blenheim and Christchurch. Grassmere's area varies between 3,500 and 4,400 acres (14 and 18 km 2); this maximum is attained only in rare floods.The watershed is small. These earthquakes caused significant damage in Seddon and other communities in north-eastern Marlborough. KiwiRail would be running a test train to Lake Grassmere on Monday, the first time a train had been further south than Spring Creek, north of Blenheim, since the earthquake. Sie ist der nordöstlichste Teil der Ward-Senke. Seismic performance of two water-storage dams during the Mw 6.6 Lake Grassmere Earthquake in August 2013. Initial findings from these excursions are presented below. Central Laboratories, Ministry of Works and Development, Lower Hutt. The 2013 Lake Grassmere earthquake was a magnitude 6.6 earthquake that occurred at 2:31:05 pm (NZST) on Friday 16 August 2013. This paper presents various aspects of the preliminary damage observations caused by ground motions in the Marlborough region following the M w6.6 Lake Grassmere earthquake on 16 August 2013. This is a list of large earthquakes that have occurred in New Zealand. Leave a Reply Cancel reply. The 2013 Lake Grassmere earthquake was a magnitude 6.6 earthquake that occurred at 2:31:05 pm (NZST) on Friday 16 August 2013. The epicentre was located about 10 km south-east of Seddon, under Lake Grassmere, with a focal depth of 8 km.The earthquake caused significant land damage in the local area, with landslips blocking roads, including the main highway between Blenheim and Christchurch. This earthquake had a magnitude of 6.6. The epicentre was located about 10 km south-east of Seddon, under Lake Grassmere, with a focal depth of 8 km.The earthquake caused significant land damage in the local area, with landslips blocking roads, including the main highway between Blenheim and Christchurch. Es handelt sich um eine flache Lagune, die von der Clifford Bay nur durch eine schmale, von Sanddünen bedeckte Barriere getrennt ist. Damage to buildings and Infrastructure Damage to buildings in Blenheim was generally light. The epicentre was located about 10 km south-east of Seddon, under Lake Grassmere, with a focal depth of 8 km.The earthquake caused significant land damage in the local area, with landslips blocking roads, including the main … This is now known as the Lake Grassmere Earthquake, and measured 6.6, with an epicentre only 10km south east of Seddon, 8km in depth. For the first 30 years of the station’s life, there was the added possibility of backflow from the 10 km-long tailrace tunnel flooding the machine hall. Then on 16 August 2013 a magnitude 6.6 earthquake with its epicentre under Lake Grassmere struck about 2:30 PM and was followed by a series of aftershocks over the next few hours, one of which was above magnitude 6 and several others above magnitude 5. No observations of major failures or external cracking were apparent from our drive-through survey. A particular focus of our survey was on the earthquake impacts to the wine sector, the major industry in the region. The epicentre was located about 10 km south-east of Seddon, under Lake Grassmere, with a focal depth of 8 km.The earthquake caused significant land damage in the local area, with landslips blocking roads, including the main highway between Blenheim and Christchurch. The earthquake was centred in Cook Strait, about 20 kilometres east of Seddon. The earthquake caused significant land damage in the local area, with landslips blocking roads, including the main highway between Blenheim and Christchurch. The epicentre was located about 10km south-east of Seddon, under Lake Grassmere, at a depth of 8km. Six months after the M w 6.6 Lake Grassmere earthquake, the 2014 M w 6.2 Eketahuna earthquake The 2013 Lake Grassmere earthquake was a magnitude 6.6 earthquake that occurred at 2:31:05 pm (NZST) on Friday 16 August 2013. #1 2013 Lake Grassmere earthquake Unclassified Updated: 2019-03-15 The 2013 Lake Grassmere earthquake was a magnitude 6.6 earthquake that occurred at 2:31:05 pm on Friday 16 August 2013. On the 16 th August 2013, at 2:41pm NZST, a M W 6.6 earthquake struck at a very shallow depth of 8 kilometres underneath Lake Grassmere, in the extreme north-east of the South Island of New Zealand. The epicentre was located about 10 km south-east of Seddon, under Lake Grassmere, with a focal depth of 8 km.The earthquake caused significant land damage in the local area, with landslips blocking roads, including the main highway between Blenheim and Christchurch. The area was the location of a swarm of M > 4 earthquakes in 2005 and before that, it was the location of the 1977 M 6 Cape Campbell earthquake and the 1966 M 5.8 Seddon earthquake (Holden et al. Earthquakes regularly rattle the region. 2013 Seddon/Lake Grassmere earthquakes. Presented/Published: 2017 NZSEE Conference . The 2013 Lake Grassmere earthquake was a magnitude 6.6 earthquake that occurred at 2:31:05 pm (NZST) on Friday 16 August 2013. Report 5-87/5. 2013 Cook Strait and Lake Grassmere earthquakes At 5.09 p.m. on Sunday 21 July 2013, a magnitude 6.5 earthquake rocked central New Zealand, causing minor damage. 2013 Lake Grassmere earthquake. 2013 Lake Grassmere earthquake: | | 2013 Lake Grassmere earthquake | | | | ... World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled. 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