In fact, the Alpine Fault, which runs for about 600 kilometers through the South Island, suffered major eruptions in 1717, 1620, 1450, and 1100. The September 4 earthquake, however, did not occur on the Alpine Fault. Australia gave. 1) was about 14 kilometres long, and extends east-northeast from Cashmere to the Avon-Heathcote estuary area. Geologists and authorities are racing to quantify what might happen, and how they might respond in the event of the next one, likely to occur some time in the next 50 years. 3). 2 ALPINE FAULT EARTHQUAKE 2.1 Alpine Fault The Alpine Fault is the largest active fault in New Zealand and extends over 650km on land from Milford Sound to Blenheim. The Christchurch Fault is an active seismic fault running under the city of Christchurch in the middle of New Zealand's South Island.. “Just because we didn’t see it in that earthquake in the past, doesn’t mean we won’t see it in the future.” He applies the same caution to the next likely rupture of New Zealand’s largest fault, the Alpine Fault. The contour lines indicate the amount (in mm) the land has risen (blue contours) or subsided (red contours) due to the slip on the fault. In terms of the way the previous material has been set out in this resource, and because there is so much available about the Alpine Fault, it has been decided to treat material about … 1931 Hawke's Bay earthquake 2011 Christchurch earthquake Alpine Fault ChristChurch Cathedral Volcanology of New Zealand. The duration of shaking is expected to last over 3 minutes for an Alpine fault earthquake and at least 20 seconds for a Hope fault earthquake. The 2011 Christchurch earthquake, for example, was the result of a 16km fault rupture. I felt the next Christchurch quake (22 February) while at work, and a few aftershocks as well. The images can be combined to show the total amount of shift of the ground surface, both vertically and horizontally, caused by the earthquake (see Fig. Within 3 days... 80% of roads and 50% of footpaths were repaired. Christchurch earthquake. It runs parallel to the more destructive Port Hills Fault that lies 5 km to the south of the Christchurch Fault. The fault, which runs about 600km up the western side of the South Island, poses one of the biggest natural threats to New Zealand. construction standards. The white line is the contour where there was no change in height. It may have been responsible for a moderate earthquake that shook the city in 1869. The rupture will produce one of the biggest earthquakes since European settlement of New Zealand, and it will have a major impact on the lives of many people. This earthquake produced a visible rent across the landscape that allowed scientists to directly measure the movement of the longest fault segment, the Greendale Fault. The general region of fault slip is outlined by the aftershocks of the 22 February earthquake. Running through the heart of New Zealand's glacier country is the infamous Alpine Fault. The 600 kilometer-long (370 mile) faultline on the boundary of the Eurasian and Pacific tectonic plates beneath the country’s South Island produces infrequent but significant earthquakes. Central, northern and northeastern Christchurch have also gone down, but generally by less than 5 centimetres. tectonic plates, approximately 75%, is taken up on the Alpine Fault, approximately 20% . Ground shaking intensities in Christchurch during an Alpine Fault earthquake will be high enough to cause liquefaction. The Alpine Fault creates the earthquake by the opposite sides rubbing against each other after tension has built up between the two. Away from the main plate boundary faults there are many smaller faults throughout Canterbury. CTV building didn't meet. Just as the Kaikōura earthquake in 2016 had a significant impact on Wellington, we expect that when the Alpine Fault ruptures in a large magnitude earthquake it will be widely felt across the lower North Island. Running through the heart of New Zealand’s glacier country is the infamous Alpine Fault. Brendon Bradley, professor in earthquake engineering at the University of Canterbury, has created a computer simulation of the likely impact of a magnitude 8 earthquake on the Alpine Fault. Alpine Fault. A rupture of the fault was therefore considered inevitable, with severe damage predicted to the built environment - especially to infrastructure. This raised part of the Port Hills and part of southern Christchurch. For CSK satellite radar data: e-GEOS, an ASI/Telespazio company, especially Andrea Celentano. Over the next few seconds the rupture spread upwards and towards the northwest, with the amount of slip increasing with time. The Darfield earthquake had a magnitude of M7.1. Relative to the fault, the land north of the fault shifted eastward while the land to the south of the fault shifted westward. Thherewill be no Tsunami in nz if the Alpine goes as it is a *Landbased* fault line. Regional planning workshops are being held in each South Island region and once they are completed in April, a coordinated South Island Alpine Fault Earthquake (SAFER) Plan will be developed. 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