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1989 Newcastle earthquake

Earthquake in New South Wales, Australia


Earthquake in New South Wales, Australia

FieldValue
name1989 Newcastle earthquake
pushpin_mapAustralia
coordinates
timestamp1989-12-27 23:27
isc-event385153
anss-urlusp00043na
local-date
local-time10:27 a.m. AEDT UTC+11:00
magnitude5.6 (5.4 )
depth11.5 km
locationBoolaroo, New South Wales
affectedAustralia
damagesA$4 billion ($ billion in , adjusted for inflation)
intensity
pga
pgv
casualties13 dead, 160+ injured
engvarEN-AU

| isc-event = 385153 | anss-url = usp00043na | local-date = | local-time = 10:27 a.m. AEDT UTC+11:00 The 1989 Newcastle earthquake was an intraplate earthquake that occurred in Newcastle, New South Wales, on Thursday 28 December. The shock measured 5.6 on the Richter scale and was one of Australia's most serious natural disasters, killing 13 people and injuring more than 160. The damage bill has been estimated at A$4 billion (or $ billion in , adjusted for inflation), including an insured loss of about $1 billion (or $ billion in , adjusted for inflation).

The effects were felt over an area of around 200000 km2 in the state of New South Wales, with isolated reports of movement in areas up to 800 km from Newcastle. Damage to buildings and facilities was reported over an area of 9000 km2.

Death toll and damage to buildings

The highest death toll and damage occurred at the Newcastle Workers Club, where the floor collapsed. Nine people were killed and many more were trapped beneath the rubble. Another three people were crushed to death when masonry from building façades collapsed onto awnings on Beaumont Street, Hamilton, an inner-city suburb of Newcastle. Following the death of a woman in Broadmeadow from earthquake-related shock, the final death toll was raised to 13.

The earthquake caused damage to over 35,000 homes, 147 schools, and 3,000 commercial and/or other buildings, with significant damage (i.e. damage worth over $1,000; $ in adjusted for inflation) caused to 10,000 homes and 42 schools (structural damage), within the immediate Newcastle area.

The number of people in the city on the day of the earthquake was lower than usual, due to a strike by local bus drivers. The earthquake struck in the middle of an interview by a local television station NBN with a union representative.

Statistics

  • Deaths: 13 total, including;
    • 9 people who were killed at the Newcastle Workers Club
    • 3 people who were killed in Beaumont Street, Hamilton
    • 1 person who died of earthquake-induced shock The names of all 13 victims were published later in newspapers such as the Maitland Mercury
  • Injuries: 160 people were hospitalised.
  • Damaged buildings: 50,000 buildings were damaged; about 80 percent of these were homes.
  • Demolition: 300 buildings were demolished including more than 100 homes, The Newcastle Workers Club, The Century Theatre, and King's Hall.
  • Human effects: 300,000 people were affected and 1,000 made homeless.
  • Cost: The total financial cost of the earthquake is estimated to have amounted to about $4 billion.
  • Felt area: Estimated 800 km around the epicentre.
  • Magnitude: 5.6 ; 5.4 ; VIII MMI
  • Epicentre: Boolaroo
  • Aftershocks: One aftershock (M 2.1 on the Richter scale) was recorded on 29 December 1989.

Cause

In early 2007, a United States academic claimed that coal mining in the region triggered the earthquake, although earthquake activity has been present in the area at least since European settlement first occurred. That is in addition to the statement by the former head of the earthquake monitoring group at Geoscience Australia, Dr David Denham, that the Newcastle earthquake occurred some distance from mining activity:

"The depths of the focus of the earthquake was about 13, 14 kilometres, whereas the ones associated with mining, they're actually right close to the mine, because that's where the stress release takes place."

Despite records of previous earthquakes in the area, even the most recent construction codes in Newcastle at the time of the earthquake (issued in 1979) required neither the adoption of earthquake-resistant design nor the strengthening of old buildings, although they did encourage owners to provide more than the minimum strength.

References

References

  1. "Earthquake". Newcastle City Council.
  2. Newcastle Earthquake Thursday 28 December 1989. Unedited News Film of Actual Earthquake recorded at Hamilton Bus Depot and close vicinity prior to, during, and after the Earthquake. University of Newcastle https://www.youtube.com/watch?v=USWWIf3uG4E&si=Igz9R-tin27FWKkL
  3. (22 December 2014). "Newcastle earthquake: 25 years on | Photos".
  4. National Geophysical Data Center / World Data Service (NGDC/WDS): NCEI/WDS Global Significant Earthquake Database. NOAA National Centers for Environmental Information. (1972). "Significant Earthquake Information". NOAA National Centers for Environmental Information.
  5. (9 January 2007). "Mining triggered Newcastle quake, says US academic". ABC News.
  6. "Earthquake Factsheets – Newcastle". [[Geoscience Australia]].
  7. (9 January 2007). "Australian experts reject Newcastle quake claims". ABC News.
  8. (22 June 2004). "Earthquake History, Regional Seismicity and the 1989 Newcastle Earthquake". Geoscience Australia.
  9. "NewcastleBandsDatabase – The Lost Boys".
  10. "Newcastle Earthquake Song By Wilson and Lightfoot – Our Town".
  11. "NewcastleBandsDatabase -".
  12. "Gary Shearston – Discography".
  13. (1990). "The Newcastle Earthquake Response Record". Newcastle City Council.
  14. (1991). "The earth was raised up in waves like the sea: Earthquake tremors felt in the Hunter Valley since white settlement". Hunter House Publications.
  15. (9 April 2011). "What Came Between (Book)".
  16. (2020). "Disasters in Australia and New Zealand". Palgrave Macmillan.
  17. Cronshaw, Damon. (26 April 2021). "Author Alan Sunderland has published Six Seconds, a children's book about the Newcastle earthquake". The Newcastle Herald.
  18. "Aftershocks". australianplays.org.
  19. "AFTERSHOCKS – Ronin Films – Educational DVD Sales".
  20. "Newcastle Museum Permanent Exhibitions – Newcastle Museum".
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