M4.6 Earthquake 55 km NNE of Mto wa Mbu, Tanzania — September 12, 2022
2022-09-12 23:04:53 UTC (2022-09-12) · approx. 1:04 AM UTC+2 local
On September 12, 2022 at 23:04 UTC, a magnitude 4.6 shallow crustal earthquake struck 55 km NNE of Mto wa Mbu, Tanzania, at a depth of 10.0 km and coordinates -2.8625°, 35.9753°. This earthquake was detected by 15 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
35.9753°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near Mto wa Mbu, Tanzania?
The magnitude 4.6 earthquake that struck 55 km NNE of Mto wa Mbu, Tanzania on September 12, 2022 at 23:04 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -2.8625°, 35.9753°, which is 55 km NNE of Mto wa Mbu, Tanzania.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000i9hb). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, September 12, 2022). M4.6 Earthquake 55 km NNE of Mto wa Mbu, Tanzania — September 12, 2022. Retrieved November 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000i9hb/