4.7

M4.7 Earthquake 91 km SE of Mwinilunga, ZambiaMarch 11, 2022

2022-03-11 22:58:38 UTC (2022-03-11) · approx. 12:58 AM UTC+2 local

Felt by 1 person across nearby locations.

MagnitudeM4.7(mb)
Time22:58 UTC12:58 AM UTC+2
Depth10.0 kmshallow crustal
Coordinates-12.229°, 25.104°
Felt by1DYFI response
Status✓ Reviewed by USGS

On March 11, 2022 at 22:58 UTC, a magnitude 4.7 shallow crustal earthquake struck 91 km SE of Mwinilunga, Zambia, at a depth of 10.0 km and coordinates -12.2290°, 25.1039°.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -12.23°, 25.10°

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 M4.7 earthquake near 91 km SE of Mwinilunga, Zambia

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

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
-12.2290°N
25.1039°E
Felt Reports
1
DYFI responses
Community Intensity
2.9
CDI from reports

Technical Information

Event ID
us6000h3xd
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Azimuthal Gap
30.0°
Min Station Distance
7.661°
RMS Residual
0.75 sec
Last Updated
2022-05-14 21:52:35 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Mwinilunga, Zambia?

The magnitude 4.7 earthquake that struck 91 km SE of Mwinilunga, Zambia on March 11, 2022 at 22:58 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 -12.2290°, 25.1039°, which is 91 km SE of Mwinilunga, Zambia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000h3xd). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, March 11, 2022). M4.7 Earthquake 91 km SE of Mwinilunga, ZambiaMarch 11, 2022. Retrieved May 14, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000h3xd/