The 2013 Seddon earthquake measured 6.5 on the Mww scale and was centred in New Zealand's Cook Strait, around 20 kilometres (12 mi) east of the town of Seddon in Marlborough. The earthquake struck at 5:09:30 pm on Sunday 21 July 2013 (05:09 UTC) at a depth of 13 kilometres (8 mi), according to Geonet.[2] The United States Geological Survey also measured the quake at 6.5, at a depth of 17 kilometres (11 mi).[3] The quake caused moderate damage in the wider Marlborough area and Wellington, the nation's capital city 55 kilometres (34 mi) north of the epicentre. Only minor injuries were reported. Several aftershocks occurred during 21–29 July.
The quake resulted in varying degrees of damage to thirty-five buildings within the Wellington CBD with glass from broken windows falling onto the main thoroughfares of Lambton Quay, Featherston Street, and Willis Street. Damage was also caused in Paraparaumu, Wainuiomata, Porirua and the Hutt Valley in the North Island.[16][17]
The Wellington Region emergency management office was activated on the evening of 21 July, as were those in the lower part of the North Island.[16] On 22 July parts of Wellington's central business district were closed to the public to allow for inspections to buildings with damaged and potentially dangerous façades.[18]
Four people were injured in the quake, which lasted for 20 seconds, blowing out windows, cracking concrete and swaying buildings.[1]
The International Seismological Centre has a bibliography and/or authoritative data for this event.
October 27, 2023
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For the earthquake of 16 August 2013 see 2013 Lake Grassmere earthquake The 2013 Seddon earthquake measured 6 5 on the Mww scale and was centred in New Zealand s Cook Strait around 20 kilometres 12 mi east of the town of Seddon in Marlborough The earthquake struck at 5 09 30 pm on Sunday 21 July 2013 05 09 UTC at a depth of 13 kilometres 8 mi according to Geonet 2 The United States Geological Survey also measured the quake at 6 5 at a depth of 17 kilometres 11 mi 3 The quake caused moderate damage in the wider Marlborough area and Wellington the nation s capital city 55 kilometres 34 mi north of the epicentre Only minor injuries were reported Several aftershocks occurred during 21 29 July 2013 Seddon earthquakeUTC time2013 07 21 05 09 31ISC event603306074USGS ANSSComCatLocal date21 July 2013 2013 07 21 Local time5 09 30 pm NZSTMagnitude6 5 MwwDepth13 kilometres 8 mi Epicentre41 37 S 174 20 E 41 61 S 174 33 E 41 61 174 33Areas affectedNew ZealandMax intensityVII Very strong TsunamiNoneCasualties4 people injured 1 The Seddon earthquake is considered the first of an earthquake doublet citation needed with a second earthquake of similar magnitude occurring on 16 August 2013 Contents 1 Earthquake 1 1 Foreshocks 1 2 Aftershocks 2 Damage 3 See also 4 References 5 External linksEarthquake edit nbsp USGS ShakemapForeshocks edit The earthquake was preceded by a series of foreshocks the largest of which had a magnitude of 5 7 Below is a list of all foreshocks magnitudes 5 0 and above that occurred in the region between 19 July 2013 and 21 July 2013 Date NZST Time NZST Magnitude MW Magnitude Mb Magnitude ML Epicentre Depth19 July 2013 9 06 39 am 5 5 4 5 7 4 5 7 5 30 km east of Seddon 17 km21 July 2013 7 17 10 am 5 9 6 5 8 6 5 8 7 30 km east of Seddon 20 kmAftershocks edit The earthquake generated a series of aftershocks the largest of which had a magnitude of 5 4 Below is a list of all aftershocks magnitudes 5 0 and above that occurred in the region between 21 July 2013 and 2 August 2013 Date NZST Time NZST Magnitude MW Magnitude Mb Magnitude ML Epicentre Depth21 July 2013 5 09 30 pm 6 5 8 6 1 8 6 5 9 25 km east of Seddon 13 km21 July 2013 5 13 50 pm 5 3 10 5 2 11 30 km east of Seddon 13 km29 July 2013 1 07 14 am 4 9 12 5 4 13 20 km east of Seddon 12 km2 August 2013 12 56 13 am 4 7 14 5 2 15 20 km east of Seddon 6 kmDamage editThe quake resulted in varying degrees of damage to thirty five buildings within the Wellington CBD with glass from broken windows falling onto the main thoroughfares of Lambton Quay Featherston Street and Willis Street Damage was also caused in Paraparaumu Wainuiomata Porirua and the Hutt Valley in the North Island 16 17 The Wellington Region emergency management office was activated on the evening of 21 July as were those in the lower part of the North Island 16 On 22 July parts of Wellington s central business district were closed to the public to allow for inspections to buildings with damaged and potentially dangerous facades 18 Four people were injured in the quake which lasted for 20 seconds blowing out windows cracking concrete and swaying buildings 1 See also editList of earthquakes in 2013 List of earthquakes in New Zealand Marlborough Fault System 1848 Marlborough earthquake 2013 Lake Grassmere earthquake 2016 Kaikoura earthquakeReferences edit a b Wellington earthquake We can afford new quake damage PM The New Zealand Herald 22 July 2013 Archived from the original on 22 July 2013 Retrieved 22 July 2013 Quakes GeoNet Archived from the original on 9 June 2014 Retrieved 21 July 2013 M6 5 46 km ESE of Blenheim New Zealand USGS Retrieved 21 July 2013 a b M5 5 34 km E of Blenheim New Zealand earthquake usgs gov Retrieved 11 December 2015 GeoNet Quakes geonet org nz Retrieved 11 December 2015 a b M5 9 35 km ESE of Blenheim New Zealand earthquake usgs gov Retrieved 11 December 2015 GeoNet Quakes geonet org nz Retrieved 11 December 2015 a b M6 5 46 km ESE of Blenheim New Zealand earthquake usgs gov Retrieved 11 December 2015 GeoNet Quakes geonet org nz Retrieved 11 December 2015 M5 3 Cook Strait New Zealand earthquake usgs gov Retrieved 11 December 2015 GeoNet Quakes geonet org nz Retrieved 11 December 2015 M4 9 34 km SE of Blenheim New Zealand earthquake usgs gov Retrieved 11 December 2015 GeoNet Quakes geonet org nz Retrieved 11 December 2015 M4 7 39 km SE of Blenheim New Zealand earthquake usgs gov Retrieved 11 December 2015 GeoNet Quakes geonet org nz Retrieved 11 December 2015 a b Severe quake rocks North and South Island The New Zealand Herald 21 July 2013 Archived from the original on 22 July 2013 Retrieved 22 July 2013 Quilliam Rebecca 22 July 2013 Wellington earthquake 35 buildings damaged in CBD The New Zealand Herald Archived from the original on 23 July 2013 Retrieved 23 July 2013 Wellington earthquake What you need to know The New Zealand Herald 22 July 2013 Archived from the original on 22 July 2013 Retrieved 22 July 2013 External links editCook Strait earthquakes science update GNS Science The International Seismological Centre has a bibliography and or authoritative data for this event Retrieved from https en wikipedia org w index php title 2013 Seddon earthquake amp oldid 1156458358, wikipedia, wiki, book, books, library,
