M5.1 Earthquake near off the south coast of Australia — July 21, 2024
2024-07-21 18:36:52 UTC (2024-07-21) · approx. 2:36 AM UTC+8 local
On July 21, 2024 at 18:36 UTC, a magnitude 5.1 shallow crustal earthquake struck near off the south coast of Australia, at a depth of 10.0 km and coordinates -39.7533°, 121.1451°. This earthquake was detected by 56 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 400, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
121.1451°E
Technical Information
Common Questions
How strong was the magnitude 5.1 earthquake near off the south coast of Australia?
The magnitude 5.1 earthquake that struck near off the south coast of Australia on July 21, 2024 at 18:36 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -39.7533°, 121.1451°, which is near off the south coast of Australia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000n0ps). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, July 21, 2024). M5.1 Earthquake near off the south coast of Australia — July 21, 2024. Retrieved September 28, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000n0ps/