Adrian, regarding your question: "why no early warning system in place as in Japan?" According to GNS Science, if a fault has moved at least once in the last 125,000 years, it is considered active and could possibly move again. New Zealand has a large number of faults, but they are not all active at the same time. A swarm of earthquakes along a New Zealand fault-line has prompted fears of a 'megathrust' quake and devastating tsunamis. Thats why it was unknown it wasn't even there before the quake!!! Satalites using thermal etc to detect earthquakes upto 4 days b4 it happens, due to the huge amount of energy released from plate movement. Can these volcanic earthquakes be as big as regular fault-line earthquakes? Many of the larger faults are oblique-slip faults, which can cause a combination of horizontal and vertical movement. Special considerations for suspended ceilings. And living in CHCH it has always been thought that the big quake would hit in Wellington. Looks like the Assam-Tibet Earthquake occurred on the same Ring-Of-Fire tectonic plate fault line as the Indonesia/Sumatra earthquakes. Hope this is true and works. ); to the person proposing an earth's magnetic field flip - you must have knowledge which even the leading scientists (with all their detailed field strength measuring equipment) have been deprived of! According to GNS Science, if a fault has moved at least once in the last 125,000 years, it is considered active and could possibly move again. @Lynley - the general evolution of the earthquake sequence is eastward, thus any map of probable fault lines delineated in the past few months will be of little (if any) use. He says the fault responsible for Saturday’s quake was “a real simple shear” that appears to run from east to west. New earthquake fault line unearthed near Hamilton Wed, Feb 17 • Source: 1 NEWS Scientists have unearthed a fault line in the Waikato and are investigating what risk it … Many fault lines cut the ground’s surface in New Zealand; each past fault movement would have been accompanied by a large earthquake. This formerly flat, straight railway line illustrates the massive displacement caused when the Kekerengu Fault split to the sea. Victoria Crafar/Stuff The western end of Feilding's Manchester St is at higher risk of an earthquake than previously thought. Creative Commons Attribution-NonCommercial 3.0 New Zealand Licence. But if the earthquake is big enough (more than about magnitude 7) and shallow enough, the movement on the fault come right up to the ground surface, fracturing (faulting) and buckling (folding) the surface of the ground along the line of the fault by up to several metres. © Provided by Radio New Zealand New earthquake fault line discovered on a farm in Tatuanui near Morrinsville in the Waikato. Several major faults run alongside and within this system, including the Wellington Fault. Many smaller faults remain undiscovered until they generate an earthquake. The deadliest earthquake in New Zealand was the 1931 Hawke's Bay earthquake, (Napier earthquake) which claimed 256 lives followed by the June … It is the responsibility of the user of any material to obtain clearance from the copyright holder. And no you cant predict earthquakes.... in japan the early warning system is for tasunamis, which caused the majority of the damage. You might like to read my thoughts on what might really be happening: http://www.itwire.com/opinion-and-analysis/whiskey-tango-foxtrot/51963-a-theory-on-the-christchurch-earthquakes At least six fault lines were ruptured in the 7.8-magnitude earthquake that rocked New Zealand. The content of this field is kept private and will not be shown publicly. The North Island Fault System or North Island Dextral Fault Belt is a set of southwest–northeast trending seismically-active faults in the North Island of New Zealand that carry most of the dextral (right lateral) strike-slip component of the oblique convergence of the Pacific Plate with the Australian Plate. (google auckland + earthquakes to verify the quakes I speak of). The magnitude 8.1 quake in the Kermadec Islands region about 1,000 kilometers (620 miles) from New Zealand's two main islands was the largest in a series of temblors over several hours, … The 1848 earthquakes and aftershocks were caused by movement along at least 105 kilometres of a major fault along the Awatere Valley. Most of th… Yes, an early warning system could prevent deaths in circumstances where a large magnitude earthquake causes damage over a wide area, and in general would be a good idea to implement in New Zealand. Most are too weak, too deep, or too far offshore to be noticed. Also any studies being done on earthquake magnetic fields & beached whales in NZ & the possiblity of a new volcano surfacing?
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