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1931 Hawke's Bay earthquake
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Deadliest earthquake in New Zealand
July 2014
March 2024
1931 Hawke's Bay earthquake 1931-02-02 22:46:52 iscgem906607 906607 Hastings Post Office 1931.jpg Hastings Post Office New Zealand 3 February 1931 10:46:52 NZDT 10 https://www.geonet.org.nz/earthquake/shaking/2178228 M 7.4 Hawke's Bay Tue, Feb 3 1931 GeoNet 7.8 s y7.7 w yesWebb T.H. Anderson H. 1998 Focal mechanisms of large earthquakes in the North Island of New Zealand: slip partitioning at an oblique active margin Geophysical Journal International 134 1 40–86 10.1046/j.1365-246x.1998.00531.x 1998GeoJI.134...40W free 14 km on en-UK 39.3 S 177.0 E type:event_region:NZ-HKB inline,title Napier, Hastings, Hawkes Bay 256 dead, thousands injured 2:20 seconds around 2000 buildings
thumb|Damage to the Hawkes Bay Tribune building
The 1931 Hawke's Bay earthquake, also known as the Napier earthquake, occurred in New Zealand at 10:47am on 3 February, killing 256,The exact number of deaths varies according to different sources; the New Zealand Listener article cited below gives 258 deaths, but the Bateman New Zealand Encyclopedia gives 256. The difference is due to two people "missing" and presumed dead. Some articles add these two to the death toll, while others do not. injuring thousands and devastating the Hawke's Bay region. It remains New Zealand's deadliest natural disaster. Centred 15 km north of Napier, it lasted for two and a half minutes and had a magnitude of 7.8 s y (7.7 w y). There were 525 aftershocks recorded in the following two weeks, with 597 being recorded by the end of February. The main shock could be felt in much of New Zealand, with reliable reports coming in from as far south as Timaru, on the east coast of the South Island.
Tectonic setting
New Zealand lies along the boundary between the Indo-Australian plate and Pacific plates. In the South Island most of the relative displacement between these plates is taken up along a single dextral (right lateral) strike-slip fault with a major reverse component, the Alpine Fault. In the North Island the displacement is mainly taken up along the Hikurangi Subduction Zone, although the remaining dextral strike-slip component of the relative plate motion is accommodated by the North Island Fault System (NIFS).Terminations of large strike-slip faults: An alternative model from New Zealand Geological Society, London, Special Publications 290 1 387–415 2007 Mouslopoulou V Nicol A Little T. A Walsh J. J 2007GSLSP.290..387M 10.1144/SP290.15 129003001
The earthquake is thought to have occurred on one of the larger thrust faults within the accretionary wedge, at between ca. 5 km depth and ca. 20–25 km depth (which is the approximate depth of subducted Pacific plate at that location).http://www.gns.cri.nz/gns/Home/News-and-Events/Media-Releases/NZ-s-quake-vulnerability Bay quake highlights NZ's vulnerability GNS Science gns.cri.nz 23 June 2011 18 February 2013 https://web.archive.org/web/20130218235605/http://gns.cri.nz/gns/Home/News-and-Events/Media-Releases/NZ-s-quake-vulnerability dead
Damage and effects
February 2013
thumb|Comparison map of the extent of Ahuriri Lagoon before (left) and after (right) the earthquake
Nearly all buildings in the central areas of Napier and Hastings were levelled (The Dominion noted that "Napier as a town has been wiped off the map"). It was, at the time, New Zealand's most damaging earthquake to buildings since European settlement began around 1840.Dowrick 1998 141 The material damage of the earthquake was estimated at $NZ 512,000,000 1998.Dowrick 1998 140
The local landscape changed dramatically, with the coastal areas around Napier being lifted by around two metres.New Zealand Historical Atlas – McKinnon, Malcolm (Editor); David Bateman, 1997, Plate 87 The most noticeable land change was the uplifting of some 40 km2 of sea-bed to become dry land. This included Ahuriri Lagoon, which was lifted more than 2.7 metres and resulted in draining 9000 acre ha flip of the lagoon.1966 The Hawke's Bay Earthquake, 1931 https://teara.govt.nz/en/1966/disasters-and-mishaps-earthquakes/page-2 12 May 2024 An Encyclopaedia of New Zealand Today, this area is the location of Hawke's Bay Airport,Morton Jamie 4 December 2023 Why next major Hawke's Bay earthquake could cause opposite effect of 1931 disaster https://www.nzherald.co.nz/nz/why-next-major-hawkes-bay-earthquake-could-cause-opposite-effect-of-1931-disaster/CE2R762LPFC4FE3I6QBTEBPLCY/ 11 May 2024 The New Zealand Herald housing and industrial developments and farmland.May 2024
Fires
Within minutes fires broke out in a few chemist shops in Hastings Street, Napier.The 1931 Earthquake Napier City Council https://www.napier.govt.nz/napier/about/history/napier-earthquake-1931/ 2024-05-11 napier.govt.nz The fire brigade almost had the first fire under control when the second broke out in a shop at the back of the Masonic Hotel.May 2024 The fire continued to spread through adjoined wooden buildings, which led to the entire town being engulfed in flames by the afternoon. The wind at this point also picked up strength and began blowing from the east, pushing the fires back over the city.May 2024 The day was hot and dry which increased the fire's ability to spread. With water mains broken, the brigade was unable to save many buildings. Attempts were made at pumping water from the sea, but these failed. Fire engines at Napier's central fire station were covered in debris from the earthquake which made them unavailable for use. Pumping water from Clive Square, they were able to stop the fires spreading south. Only a few buildings in the central Napier area survived. Some withstood the earthquake only to be gutted by fire. Trapped people had to be left to burn as people were unable to free them in time.May 2024 It took until the following afternoon for the main fires to go out, but the ruins still smouldered for several days.May 2024 In Hastings, the fires were quickly brought under control.May 2024
Utilities
The entire east coast of the North Island lost electricity during the quake, although power was restored to Masterton, Pahiatua, Dannevirke and Waipukurau within two hours, and to Gisborne within ten hours. At Napier substation, the transformers were tipped over by the force of the quake and the high-voltage switchgear damaged, while the Napier to Tuai transmission line was taken out of service after a landslide caused a tower to collapse. A limited supply was restored to Napier and Hastings on 4 February; due to the damage at Napier substation, the Waipukurau to Napier transmission line was jumpered to the low-voltage switchgear at both ends. The Napier to Tuai line was repaired and put back into service on 12 February, while full supply to Napier substation was restored on 29 March.1931 AtoJs Online – Appendix to the Journals of the House of Representatives – 1931 Session I-II – D-01 PUBLIC WORKS STATEMENT (BY THE RIGHT HON. J. G. COATES, MINISTER OF PUBLIC WORKS). https://atojs.natlib.govt.nz/cgi-bin/atojs?a=d&d=AJHR1931-I-II.2.2.2.1&pg=101&e=-------10--1---bySH---0-AJHR_1931_IZz-II_DZz-I- 26 February 2021 atojs.natlib.govt.nz
There was also severe damage to sewerage systems, gas supply and telegraph systems.Dowrick 1998 145
Transport
The earthquake caused great damage to Napier's roads, railways, bridges and wharves. Rails were badly twisted.Dowrick 1998 142-143 The city's tram tracks were also twisted, and were never restored.Napier Earthquake http://library.christchurch.org.nz/Kids/NZDisasters/Napier.asp live https://web.archive.org/web/20080216185652/http://library.christchurch.org.nz/kids/nzdisasters/napier.asp 16 February 2008 13 February 2008 Christchurch City Libraries
New Zealand's first commercial air disaster occurred six days after the quake, when a Dominion Airlines Desoutter monoplane crashed near Wairoa. The small airline had been making three return trips a day between Hastings and Gisborne, carrying passengers and supplies. All three on board were killed.First fatal accident on a scheduled air service in New Zealand https://nzhistory.govt.nz/first-fatal-air-accident-in-nz 2024-04-15 nzhistory.govt.nz
Miscellaneous
Four prisoners working at Bluff Hill in Napier were buried in a landslip caused by the quake. The remaining prisoners dug them out, but two had been killed. The prisoners re-assembled without any attempt to escape and were locked up in the Napier Jail. In Taradale, Mission Estate missionaries' accommodation block had been built and opened on 2 February. The next day the earthquake struck, causing serious damage to the entire Mission. Two priests and seven students were killed when the stone chapel was destroyed. In Havelock North, St. Luke's church was damaged (but not destroyed) just before a wedding was due to take place. The couple got married later in the day, but outdoors.May 2024
About 10% of homes on soft ground in Napier experienced ground damage, such as liquefaction.Dowrick 1998 141 There was a large amount of damage to buildings, mainly ones made of brick; the earthquake occurred before an earthquake building code was introduced.Dowrick 1998 146 The Napier Daily Telegraph newspaper office was destroyed,May 2024 and so was the Hawke's Bay Heralds printing facility in Hastings.The Hawke's Bay Tribune https://paperspast.natlib.govt.nz/newspapers/hawke-s-bay-tribune 11 May 2024 Papers Past Napier Technical College was destroyed, which caused it to be disestablished and amalgamated into Napier Girls' High School and Napier Boys' High School.1 May 2014 H B Heritage News https://historicplacesaotearoa.org.nz/assets/HPHB-NEWSLETTER-1-May-2014.pdf 12 April 2024 historicplacesaotearoa.govt.nz
Casualties
The official death toll was 256, although the Napier earthquake memorial lists 258 names.Deadly Hawke's Bay earthquake https://nzhistory.govt.nz/hawkes-bay-earthquake 2024-05-11 nzhistory.govt.nz Of these, 161 people were in Napier, 93 in Hastings, and two in Wairoa. Thousands more were injured, with over 400 being hospitalised. There were several places that had multiple deaths, including 17 deaths due to Roach's department store collapsing, 15 in an old men's home, 9 students in Napier Technical College,1 May 2014 H B Heritage News https://historicplacesaotearoa.org.nz/assets/HPHB-NEWSLETTER-1-May-2014.pdf 11 May 2024 historicplacesaotearoa.govt.nz 8 from Grand Hotel, and 7 at the Greenmeadows seminary.
Response
Shortly after the earthquake, people escaped to the Marine Parade Beach. After noticing that the shoreline had receded, they ran away in panic under the expectation that a tsunami was on its way. There was, however, no tidal wave; the receded shoreline was caused by the land moving upwards.Fowler Michael 27 November 2016 1931 quake sparked tidal-wave fear https://www.nzherald.co.nz/hawkes-bay-today/news/1931-quake-sparked-tidal-wave-fear/FJDGAEWDELHBC64YVESUTJDZHA/ 16 May 2024 Hawke's Bay Today The New Zealand Heraldthumb|Telegram from King George V to Governor-General of New Zealand, 3 February 1931On 4 February over 5,000 people evacuated Napier,Hawke's Bay earthquake https://my.christchurchcitylibraries.com/hawkes-bay-earthquake 15 May 2024 my.christchurchcitylibraries.com mainly women and children. Men were expected to stay to help out with the recovery. The army and navy also arrived in Napier to help with the recovery. Nelson Park served as Napier's "evacuation centre" which was the site of many tents and was able to cater for over 1,000 people from a field kitchen. Many people also lived in tents in Marine Parade and other places. There were several places that gave out free food in Napier and Hawke's Bay, such as in several schools. Water barrels were also kept full to allow for people to take from them, after losing water access from their homes.
Within four days of the quake, cinemas around New Zealand offered news specials about the disaster.May 2024
HMS Veronica
The death toll might have been much higher had the Royal Navy ship HMS Veronica not been in port at the time. Within minutes of the shock the Veronica had sent radio messages asking for help. The sailors joined survivors to fight the fires, rescue trapped people, and provide medical treatment. The Veronica'''s radio was used to transmit news of the disaster to the outside world and to seek assistance. The crew from two cargo ships, the Northumberland and Taranaki, also joined the rescue works, while two cruisers, HMS Diomede and HMS Dunedin, were dispatched from Auckland that afternoon with food, tents, medicine, blankets, and a team of doctors and nurses. The cruisers sailed at high speed overnight, arrived on 4 February, and provided valuable assistance in all areas until their departure on 11 February.May 2024
Aftershocks
y May 2024
On 13 February, Hawke's Bay was struck by a 7.3 s aftershock. At the time, this was New Zealand's fourth strongest recorded earthquake. Author Matthew Wright reported that "the power failed three seconds before the earthquake was felt in Napier. People from Napier to Dannevirke ran for their lives as previously damaged buildings cracked and fell".http://wildland.owdjim.gen.nz/?p=77 Hawke's Bay Earthquakes 1931 « Wild Land Wildland.owdjim.gen.nz 13 February 2006 18 June 2015 He added "Some inland parts of Hawke's Bay felt this aftershock more strongly than 3 February quake ... but 'there was no damage of any moment'. People rushed into the streets in Dannevirke and Masterton. In Wellington all but one of the clocks stopped working in the Dominion Observatory, and ceiling lights in the Evening Post offices swayed more vigorously than they had the week before". The earthquake of 13 February 1931 is widely regarded as an aftershock of the larger event ten days earlier. But Messrs Adams, Barnett and Hayes commenting on the rapid decline in the frequency of aftershocks in the Journal of Science & Technology stated, "The fresh outbreak on the 13th February, due to the severe shock on that date, may almost be regarded as a separate disturbance, although it probably arose from conditions produced by the original shock on the 3rd".May 2024
Aftershocks continued to shake Hawke's Bay frequently until July 1931, where the average aftershock occurrence dropped to less than one daily. Aftershocks continued for a few more years, with the last major jolt shaking the Bay in April 1934.May 2024
Below is a list of all recorded aftershocks following the main event.
+ Year Month Date Number of aftershocks Largest shock 1931 February 597 3 February 151 5.5 s y 4 February 55 5 February 50 6 February 29 7 February 24 8 February <20 6.4 s y 9 February <20 10 February <20 11 February <20 12 February <20 13 February 81 7.3 s y 14 February 23 15 February 18 16 February 19 1931 March 75 1931 April 52 5.5 s y 1931 May 40 6.0 s y 1931 June 40 1931 July 26 1931 August 17 1931 September 20 1931 October 16 1931 November 19 1931 December 14 1932 May 5.9 s y 1932 September 6.9 s y 1934 March 6.3 s y 1934 April 5.6 s y
In all, 597 earthquakes were recorded at Hastings in February 1931, and more than 900 by the end of December 1931.Alan G. Hull (1990) Tectonics of the 1931 Hawke's Bay earthquake, New Zealand Journal of Geology and Geophysics, 33:2, 309–320, 10.1080/00288306.1990.10425689
Recovery
The government quickly realised that the Napier borough council would be overwhelmed with organising the rebuild and appointed two commissioners for this task, John Barton and Lachlan Bain Campbell.McSaveney Eileen Historic earthquakes – Rebuilding Napier http://www.teara.govt.nz/en/historic-earthquakes/page-8 Te Ara: The Encyclopedia of New Zealand 15 June 2015 13 July 2012http://www.ipenz.org.nz/Heritage/Conference2014/Proceedings/Karen%20Astwood%20paper%20(300%20KB).pdf https://web.archive.org/web/20150118093437/http://www.ipenz.org.nz/Heritage/Conference2014/Proceedings/Karen%20Astwood%20paper%20(300%20KB).pdf dead 18 January 2015 Learning from experience: three case studies of New Zealand natural disasters and engineers' responses, 1878–1953 Astwood Karen 24–26 November 2014 Lincoln University, New Zealand 4th Australasian Engineering Heritage Conference When the commissioners were due to leave in May 1933, they were petitioned to stay, and Barton was invited to stand for the mayoralty, which he declined.Axford C. Joy 4b9 John Saxon Barton 23 August 2016
thumb|The temporary shopping centre known as "Tin Town"
Tin TownSeveral temporary structures were built following the earthquake, including the shopping centre commonly referred to as Tin Town in Clive Square.McSaveney Eileen 12 June 2006 Rebuilding Napier https://teara.govt.nz/en/historic-earthquakes/page-8 11 May 2024 Te Ara: The Encyclopedia of New Zealand It remained for about two years,Heather Ben 31 October 2011 Napier's 'Tin Town' did it first https://www.stuff.co.nz/the-press/5878800/Napiers-Tin-Town-did-it-first 11 May 2024 The Press Stuff New Zealand housed over 50 businesses, and was created with a £10,000 loan which did not have to be paid back. According to The Press, it was the world's first "pop-up mall".
The earthquake prompted a thorough review of New Zealand building codes,Hicks Geoffrey R. F. https://www.wikidata.org/wiki/Q126174593 Awesome Forces: The Natural Hazards That Threaten New Zealand Campbell Hamish 2012-01-01 Te Papa Press 978-1-877385-87-2 51 which were found to be totally inadequate.https://ojs.aut.ac.nz/interstices/index.php/Interstices/article/view/260/262 Walker Paul 1992 Shaky Ground Interstices: Journal of Architecture and Related Arts 25–44 10.24135/ijara.v0i0.260 free The first earthquake building code was created in 1935.Dowrick 1998 141 Many buildings built during the 1930s and 1940s are heavily reinforced, although more recent research has developed other strengthening techniques. Building regulations established as a result of this event mean that to this day, there are only four buildings in Hawke's Bay taller than five storeys, and as most of the region's rebuilding took place in the 1930s when Art Deco was fashionable and at its peak resulting in a major cultural change of the city, Hawke's Bay architecture is regarded today as being one of the finest collections of Art Deco in the world. https://www.smithsonianmag.com/travel/earthquake-helped-turn-city-art-deco-capital-world-180958081/ How an Earthquake Turned This New Zealand Town into the Art Deco Capital of the World Nalewicki Jennifer 19 February 2016 SmithsonianMag.com 16 November 2023
At the time of the earthquake, there were no national emergency response organisations or legal provisions in case of such disaster, which was a hindrance to recovery. As a result, new legislation had to be passed quickly,McSaveney Eileen 12 June 2006 The Hawke's Bay Earthquake Act 1931 https://teara.govt.nz/en/document/4569/the-hawkes-bay-earthquake-act-1931 12 May 2024 Te Ara: The Encyclopedia of New Zealand such as the Hawke's Bay Earthquake Act 1931 which received assent on 28 April to give out loans for the rebuild. The Great Depression caused difficulty gathering funds however, so a large portion came from charity.2024-05-21 Major New Zealand earthquakes since 1855 – New Zealand Parliament https://www.parliament.nz/mi/pb/research-papers/document/00PLEcoRP2016031/major-new-zealand-earthquakes-since-1855 2024-05-11 parliament.nz
On the tenth anniversary of the earthquake, the New Zealand Listener reported that Napier had risen from the ashes like a phoenix. It quoted the 1931 principal of Napier Girls' High School as saying "Napier today is a far lovelier city than it was before".May 2024
The New Napier Carnival was held in January 1933 to celebrate the rebuild of the town,New Napier Week Carnival https://collection.mtghawkesbay.com/objects/73138/new-napier-week-carnival 14 May 2024 MTG Hawke's Bay which officially declared it reborn.
Memorials
thumb|The Hastings Clock Tower was built in 1935 to symbolise the recovery of the earthquake.
A common grave was created on 5 February 1931 to bury 101 of the earthquake's victims. Architect J. A. Louis Hay started designing a memorial for the site in 1932, which consists of an obelisk, a garden, the text "Their sun is gone down while it is yet day" and a written list of the victims known to be buried there.Napier Earthquake Memorial https://nzhistory.govt.nz/media/photo/napier-earthquake-memorial 2024-05-11 nzhistory.govt.nz A clock tower memorial was built in Hastings in 1935, which serves the purpose of symbolising recovery rather than being a memorial.Hastings clock tower memorial https://nzhistory.govt.nz/media/photo/hastings-clock-tower-memorial 2024-05-11 nzhistory.govt.nz
Hastings holds a commemoration every year on 3 February for the earthquake, which starts at 10.30am and has clock towers ring at 10.47, which was the same time the earthquake struck.Earthquake Commemoration Hastings District Council https://www.hastingsdc.govt.nz/hastings/about-hastings/earthquake-commemoration/ 2024-05-11 hastingsdc.govt.nz
The HMS Veronica Sunbay memorial is located on Marine Parade, which remembers the crew of the ship Veronica. It was built in 1934 and named in 1937 after the ship was decommissioned. The ship's bell is used for community services. The council decided in 2024 that the memorial will be restored again after it was deemed potentially unsafe.7 August 2024 Sunbay repairs: Napier City Council to start restoration on HMS Veronica Memorial that honours 1931 quake heroes https://www.nzherald.co.nz/nz/sunbay-repairs-napier-city-council-to-start-restoration-on-hms-veronica-memorial-that-honours-1931-quake-heroes/LKQPOJ7N2RE3XP26FIPMINVTNI/ 10 August 2024 The New Zealand Herald
Gallery
See also
2011 Christchurch earthquake
List of earthquakes in 1931
List of earthquakes in New Zealand
List of disasters in New Zealand by death toll
Notes
References
Denis Welch 4 February 2006 Shake, Rattle & Roll New Zealand Listener 3430 29–30 http://listener.co.nz/default,5417.sm 19 February 2006 https://web.archive.org/web/20060205040325/http://www.listener.co.nz/default,5417.sm 5 February 2006 dead
http://www.hbrc.govt.nz/DesktopDefault.aspx?tabid=181 Earthquakes History of Earthquakes in Hawke's Bay Hawke's Bay Regional Council 20 February 2006 https://web.archive.org/web/20060129090609/http://www.hbrc.govt.nz/DesktopDefault.aspx?tabid=181 29 January 2006 dead
http://www.hastingsdc.govt.nz/libraries/Topic_HBearthquake.htm Hawke's Bay Earthquake 3 February 1931 Hastings District Libraries 20 February 2006 https://web.archive.org/web/20051221173022/http://www.hastingsdc.govt.nz/libraries/Topic_HBearthquake.htm 21 December 2005 dead
Bateman New Zealand Encyclopedia, edition 4 (1995). Article: Napier''
https://www.nzsee.org.nz/db/Bulletin/Archive/31(3)0139.pdf Damage and intensities in the magnitude 7.8 1931 Hawke's Bay, New Zealand, earthquake New Zealand Society for Earthquake Engineering David Dowrick September 1998
External links
Art Deco Napier
Hawkes Bay Disaster 1965 film on YouTube
Category:February 1931 in Oceania
Category:1931 Hawke's Bay earthquake
1931 Hawke's Bay
Category:1931 in New Zealand
Category:1931 earthquakes