2023 Sunbury earthquake

2023 Sunbury earthquake
2023 Sunbury earthquake is located in Melbourne
2023 Sunbury earthquake
2023 Sunbury earthquake is located in Victoria
2023 Sunbury earthquake
2023 Sunbury earthquake is located in Australia
2023 Sunbury earthquake
UTC time2023-05-28 13:41:51
ISC event626225065
USGS-ANSSComCat
Local date28 May 2023 (2023-05-28)
Local time23:41:51
Duration5–10 seconds
MagnitudeML4.0 (Geoscience Australia)[1]
mb3.8 (USGS)[2]
Depth2.0 km (1.2 mi) (Geoscience Australia)[1]
9.0 km (5.6 mi) (USGS)[2]
Epicenter37°34′S 144°51′E / 37.56°S 144.85°E / -37.56; 144.85
FaultUnknown
Max. intensityMMI VI (Strong)[3]
Peak acceleration0.1g[4]
AftershocksML 2.6[5]
CasualtiesNone

An earthquake struck approximately 28 kilometres NNW of Melbourne CBD, near the suburb of Sunbury in Victoria, Australia on 28 May 2023, at 23:41 local time (AEST). The earthquake measured 4.0 on the moment magnitude scale.[1] It caused minor structural damage in parts of Melbourne and was felt as far as Tasmania and the Victoria-New South Wales border. Although the earthquake was weaker than the magnitude 5.9 Mansfield earthquake in 2021, this earthquake occurred within metropolitan Melbourne, so it was felt at a similar strength there, albeit for a lesser amount of time.[6]

  1. ^ a b c "Sunbury, VIC". earthquakes.ga.gov.au. Geoscience Australia. Retrieved 1 June 2023.
  2. ^ a b "M 3.8 - 5 km W of Mickleham, Australia, Australia". earthquake.usgs.gov. U.S. Geological Survey. Retrieved 7 June 2023.
  3. ^ "Macroseismic Intensity Map GA" (PDF). Earthquake@GA. Geoscience Australia. Retrieved 3 June 2023.
  4. ^ "Peak Ground Acceleration Map GA" (PDF). Earthquake@GA. Geoscience Australia. Retrieved 3 June 2023.
  5. ^ "Earthquakes@GA | NE of Sunbury, VIC". Archived from the original on 1 June 2023. Retrieved 1 June 2023.
  6. ^ Sambul, Benjamin; Preiss, Najma (29 May 2023). "Why magnitude 3.8 earthquake felt unusually strong". The Age. Retrieved 1 June 2023.