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A magnitude 6.1 earthquake has struck New Zealand, just one day after a devastating cyclone forced a state of emergency across much of the country.. The quake occurred under the Cook Strait ...
The largest city within the highest-risk zone is the nation's capital, Wellington, followed by Napier then Hastings. All these cities have experienced severe earthquakes since European settlement. About 14,000 earthquakes occur in and around the country each year, of which between 150 and 200 are big enough to be felt. [2]
GeoNet monitors earthquakes, large landslides, volcanoes, tsunami, and movement of land. [1] [2] This monitoring is done using over 1,000 instruments across the country, [1] with data being transmitted from its sensors to GNS Science's computers in Wellington and Wairākei. On average, the monitoring system detects over 20,000 earthquakes per year.
The Wellington Fault is also capable of producing earthquakes of up to magnitude-8. [1] While a major rupture on the Wellington Fault can be expected anytime in the next 500 years, a significant earthquake on other faults in the Wellington area have a shorter 150 year return time. [3]
The Wellington region is prone to major earthquakes. Significant earthquakes originating in or affecting the region include the magnitude 8.2 earthquake on 23 January 1855, the two 1942 Wairarapa earthquakes of magnitude 6.9 on 24 June 1942 and 6.8 on 1 August 1942, and the 2016 Kaikōura earthquake of magnitude 7.8 on 14 November 2016 (over ...
For U.S. earthquake scientists, Japan's 'megaquake' warning renewed worries about when and how to warn the public if they find clues that the 'big one' might be coming for the West COast.
The 2016 Kaikōura earthquake was a M w 7.8 earthquake in the South Island of New Zealand that occurred two minutes after midnight on 14 November 2016 NZDT (11:02 on 13 November UTC). [2] Ruptures occurred on multiple faults and the earthquake has been described as the "most complex earthquake ever studied". [8]
The 1848 Marlborough earthquake was a M w 7.5 earthquake that occurred at 1:40 a.m. on 16 October 1848 and whose epicentre was in the Marlborough region of the South Island of New Zealand. [ 1 ] In Wellington , the shaking lasted for about two minutes and caused widespread damage, especially to brick or stone structures.