2023 Sunbury earthquake
UTC time | 2023-05-28 13:41:51 |
---|---|
ISC event | 626225065 |
USGS-ANSS | ComCat |
Local date | 28 May 2023 |
Local time | 23:41:51 |
Duration | 5–10 seconds |
Magnitude | ML4.0 (Geoscience Australia)[1] mb3.8 (USGS)[2] |
Depth | 2.0 km (1.2 mi) (Geoscience Australia)[1] 9.0 km (5.6 mi) (USGS)[2] |
Epicenter | 37°34′S 144°51′E / 37.56°S 144.85°E |
Fault | Unknown |
Max. intensity | MMI VI (Strong)[3] |
Peak acceleration | 0.1g[4] |
Aftershocks | ML 2.6[5] |
Casualties | None |
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]
Tectonic setting
The
The earthquake is situated in the
This earthquake occurred near the Clarkefield
Earthquake
According to
On the modified
Impact
The quake generated 5 to 10 seconds of shaking which was widely felt in Melbourne.[6] More than 26,000 felt reports were submitted to Geoscience Australia.[13] Slight damages including buckled roads, cracked buildings, cracked plaster and fallen pictures were reported across the northern and western suburbs of Melbourne near the epicentre region.[14][15] It was the strongest earthquake within 40 km (25 mi) of Melbourne in more than 120 years, with the last stronger earthquake being a magnitude 4.5 quake in 1902.[16]
Response
An earthquake advice was issued by
Further tremors
On 30 May 2023, a 2.6 magnitude aftershock which happened 2 minutes after the initial quake was identified by Geoscience Australia after manual analysis.[19] Another 2.3-magnitude tremor occurred in the Melbourne Suburb of Croydon, about 33 km east of Melbourne's CBD at 17:03 two days later.[20] It was felt by approximately 400 people.[21]
See also
References
- ^ a b c d "Sunbury, VIC". earthquakes.ga.gov.au. Geoscience Australia. Retrieved 1 June 2023.
- ^ U.S. Geological Survey. Retrieved 7 June 2023.
- ^ "Macroseismic Intensity Map GA" (PDF). Earthquake@GA. Geoscience Australia. Retrieved 3 June 2023.
- ^ "Peak Ground Acceleration Map GA" (PDF). Earthquake@GA. Geoscience Australia. Retrieved 3 June 2023.
- ^ "Earthquakes@GA | NE of Sunbury, VIC". Archived from the original on 1 June 2023. Retrieved 1 June 2023.
- ^ a b Sambul, Benjamin Preiss, Najma (29 May 2023). "Why magnitude 3.8 earthquake felt unusually strong". The Age. Retrieved 1 June 2023.
{{cite news}}
: CS1 maint: multiple names: authors list (link) - ^ Jamie Ensor (22 September 2021). "Earthquake: Magnitude 5.8 shake hits Melbourne". Newshub. Retrieved 22 September 2021.
- .
- ^ "Victoria's geology". Victoria State Government. Earth Resources. 1 June 2023. Retrieved 23 September 2021.
- ^ Attanayake, Januka; Jones, Abraham; Quigley, Mark (29 May 2023). "Monitoring Melbourne's Sunbury Earthquake". Pursuit. University of Melbourne. Retrieved 1 June 2023.
- ^ Mannix, Liam (30 May 2023). "A geological car crash: Five images that explain Melbourne's earthquake". The Sydney Morning Herald. Retrieved 1 June 2023.
- ^ "3.8 magnitude earthquake wakes Melbourne residents". The Canberra Times. 29 May 2023. Retrieved 1 June 2023.
- ^ Burton, Tom (29 May 2023). "Australia complacent about earthquake catastrophe: seismologists". Australian Financial Review. Retrieved 1 June 2023.
- ^ Burton, Tom (28 May 2023). "Buildings crack, roads buckle in magnitude-3.8 Melbourne earthquake". Australian Financial Review. Retrieved 30 May 2023.
- ^ Ninis, Dee (29 May 2023). "Melbourne earthquake 2023: are they becoming more common? A seismology expert explains". The Conversation. Retrieved 1 June 2023.
- ^ Achenza, Madeleine (28 May 2023). "'Solid BOOM': Melbourne rocked by record-breaking earthquake". PerthNow. Retrieved 1 June 2023.
- ^ "Earthquake | Advice - Earthquake". www.abc.net.au. VIcEmergency. 29 May 2023. Retrieved 1 June 2023.
- ^ Subramaniam, Tara (29 May 2023). "Largest earthquake in 120 years rattles Melbourne but causes little damage". CNN. Retrieved 1 June 2023.
- ^ Mageros, Adriana (30 May 2023). "Fresh tremor hits Melbourne days after earthquake struck city". Sky News Australia. Retrieved 1 June 2023.
- ^ Anthony, Anthony (30 May 2023). "Fresh aftershock rocks Melbourne days after earthquake". news.com.au. Retrieved 1 June 2023.
- ^ "Croydon, VIC". earthquakes.ga.gov.au. Earthquakes@GA. Retrieved 1 June 2023.