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This is an old revision of this page, as edited by Panamitsu (talk | contribs) at 01:53, 14 June 2024. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Sources:[1][2][3][4]

Earthquake

Dunedin was hit by an earthquake at about 7.49pm on 9 April 1974.[5] Another earthquake struck the city a few seconds later, which was longer and stronger.[5] It was magnitude 4.9 and measured VIII (severe) on the Modified Mercalli intensity scale,[6][7][8] and had an epicentre that was offshore, about 5 kilometres south of the suburb of St Clair,[5] and had a depth of 12 kilometres.[8] This one caused power outages and chimneys to fall down.[5] There were several aftershocks with a magnitude 3.7 following this.[5] It took about 45 minutes for power to be restored to Corstorphine.[8]

The Earthquake and War Damage Commission received about 3,000 damage claims,[5] and paid out about $3.5 million (in 2024 terms), which was mainly from falling chimneys and masonry.[6] Damage was minor.[8]

References

  1. ^ Gorman, Paul (26 September 2020). "The day the earth moved". The Otago Daily Times. Retrieved 14 June 2024.
  2. ^ Adams, R. D.; Kean, R. J. (30 September 1974). "The Dunedin earthquake, 9 April 1974: Part 1: seismological studies". Bulletin of the New Zealand Society for Earthquake Engineering. 7 (3): 115–122. doi:10.5459/bnzsee.7.3.115-122. ISSN 2324-1543.
  3. ^ "The Dunedin Earthquake, 9 April 1974 Part 1". New Zealand Society for Earthquake Engineering. Retrieved 14 June 2024.
  4. ^ "Seismic Risk in the Otago Region" (PDF). Otago Regional Council. March 2005. Retrieved 14 June 2024.
  5. ^ a b c d e f Gorman, Paul (14 July 2016). "Could Dunedin be hit by a large, local earthquake?". Stuff. Retrieved 14 June 2024.
  6. ^ a b Littlewood, Matthew (8 April 2024). "Information event to commemorate earthquake". Otago Daily Times. Retrieved 14 June 2024.
  7. ^ "Magnitude 4.9, Tue Apr 9 1974 7:49 PM". GeoNet. Retrieved 14 June 2024.
  8. ^ a b c d "The last good shake". Otago Daily Times. 18 September 2010. Retrieved 14 June 2024.