4.9

M4.9 Earthquake 43 km N of Kilimatinde, TanzaniaFebruary 16, 2023

2023-02-16 15:13:54 UTC (2023-02-16) · approx. 5:13 PM UTC+2 local

MagnitudeM4.9(mb)
Time15:13 UTC5:13 PM UTC+2
Depth10.0 kmshallow crustal
Coordinates-5.458°, 35.004°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 16, 2023 at 15:13 UTC, a magnitude 4.9 shallow crustal earthquake struck 43 km N of Kilimatinde, Tanzania, at a depth of 10.0 km and coordinates -5.4577°, 35.0044°. This earthquake was detected by 92 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

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.

Map showing earthquake epicenter at -5.46°, 35.00°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
-5.4577°N
35.0044°E

Technical Information

Event ID
us6000jpe3
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
92
Azimuthal Gap
31.0°
Min Station Distance
4.320°
RMS Residual
0.50 sec
Last Updated
2024-01-18 19:21:48 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Kilimatinde, Tanzania?

The magnitude 4.9 earthquake that struck 43 km N of Kilimatinde, Tanzania on February 16, 2023 at 15:13 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 -5.4577°, 35.0044°, which is 43 km N of Kilimatinde, Tanzania.

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: us6000jpe3). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, February 16, 2023). M4.9 Earthquake 43 km N of Kilimatinde, TanzaniaFebruary 16, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000jpe3/