M5.4 earthquake 68 km NNW of Khorixas, Namibia
A magnitude 5.4 earthquake struck 68 km NNW of Khorixas, Namibia on Sun, Apr 4, 2021, 3:41 AM GMT+2 (01:41 UTC), 6 km (4 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mww), moderate
- Local time
- UTC
- 2021-04-04 01:41:02 UTC
- Depth
- 6.0 km (3.7 mi), shallow
- Epicenter
- 19.822° S, 14.663° E
- Region
- Namibia
- Felt reports
- 15
- Strongest shaking
- VII, very strong shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VII, very strong shaking
- Peak ground acceleration
- 49.8% of gravity
- Peak ground velocity
- 2.7 cm/s
- Map
- Automatic
Did you feel it?
15 people reported to the USGS what they felt; the strongest reported shaking was VI, strong shaking.
Estimated impact
The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.
- Alert level
- Green: little or no damage or loss of life expected
| Range | Chance |
|---|---|
| Under 1 | 69% |
| 1 to 10 | 29% |
| 10 to 100 | 2% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
| Range, million USD | Chance |
|---|---|
| Under 1 | 69% |
| 1 to 10 | 29% |
| 10 to 100 | 2% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique normal
- Moment magnitude
- 5.4 Mww
- Nodal plane 1
- Strike 314°, dip 36°, rake -136°
- Nodal plane 2
- Strike 185°, dip 66°, rake -62°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 7.2 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From modeling of broad-band P waveforms
- Station coverage gap
- 19°
- Stations used
- 116
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayNamibia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000dyuk (also filed as usauto6000dyuk, pt21094000, iscgem620221930). Read Tue, Sep 22, 2026, 2:19 AM UTC.