M4.9 Earthquake near Gauteng, South Africa — June 11, 2023
2023-06-11 00:38:51 UTC (2023-06-11) · approx. 2:38 AM UTC+2 local
Felt by 1,844 people across a wide area.
On June 11, 2023 at 00:38 UTC, a magnitude 4.9 shallow crustal earthquake struck near Gauteng, South Africa, at a depth of 5.0 km and coordinates -26.3274°, 28.1581°. This earthquake was detected by 89 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 949, making it one of the more significant events of the week.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1,844 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
28.1581°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Gauteng, South Africa?
The magnitude 4.9 earthquake that struck near Gauteng, South Africa on June 11, 2023 at 00:38 UTC had a depth of 5.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -26.3274°, 28.1581°, which is near Gauteng, South Africa.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000k7q8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, June 11, 2023). M4.9 Earthquake near Gauteng, South Africa — June 11, 2023. Retrieved September 7, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000k7q8/