4.8

M4.8 Earthquake 23 km SE of Ikungi, TanzaniaAugust 8, 2023

2023-08-08 20:28:13 UTC (2023-08-08) · approx. 10:28 PM UTC+2 local

Felt by 1 person across nearby locations.

MagnitudeM4.8(mb)
Time20:28 UTC10:28 PM UTC+2
Depth10.0 kmshallow crustal
Coordinates-5.311°, 34.889°
Felt by1DYFI response
Status✓ Reviewed by USGS

On August 8, 2023 at 20:28 UTC, a magnitude 4.8 shallow crustal earthquake struck 23 km SE of Ikungi, Tanzania, at a depth of 10.0 km and coordinates -5.3107°, 34.8895°. This earthquake was detected by 62 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 355, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -5.31°, 34.89°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.8 earthquake near 23 km SE of Ikungi, Tanzania

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.8 mb
Depth
10.0 km
shallow crustal
Location
-5.3107°N
34.8895°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us6000kyqp
Event Type
earthquake
Status
✓ Reviewed
Significance
355
Stations Used
62
Azimuthal Gap
57.0°
Min Station Distance
4.301°
RMS Residual
1.27 sec
Last Updated
2023-10-17 22:01:28 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Ikungi, Tanzania?

The magnitude 4.8 earthquake that struck 23 km SE of Ikungi, Tanzania on August 8, 2023 at 20:28 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 -5.3107°, 34.8895°, which is 23 km SE of Ikungi, Tanzania.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000kyqp). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, August 8, 2023). M4.8 Earthquake 23 km SE of Ikungi, TanzaniaAugust 8, 2023. Retrieved October 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kyqp/