M5.4 earthquake Fiji region
A magnitude 5.4 earthquake struck in the Fiji region on Fri, Apr 16, 2021, 4:40 AM GMT-12 (16:40 UTC), 578 km (359 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
- 2021-04-16 16:40:30 UTC
- Depth
- 577.7 km (359.0 mi), deep
- Epicenter
- 21.716° S, 179.347° W
- Region
- Fiji
- Strongest shaking
- I, not felt 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
- I, not felt shaking
- Peak ground acceleration
- 0.0% of gravity
- Peak ground velocity
- -4.5 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
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 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 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 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 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
- Strike-slip
- Moment magnitude
- 5.4 Mww
- Nodal plane 1
- Strike 120°, dip 12°, rake 175°
- Nodal plane 2
- Strike 215°, dip 89°, rake 79°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 9.6 km horizontally, 5.0 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 32°
- Stations used
- 126
Nearby
Within 100 km, magnitude 2.4 and up: 14 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.5south of the Fiji Islands · 1991 days ago · 579 km deep · 56 km away
- 4.3south of the Fiji Islands · 1987 days ago · 585 km deep · 64 km away
- 4.2Fiji region · 1983 days ago · 548 km deep · 92 km away
- 4.1south of the Fiji Islands · 1981 days ago · 591 km deep · 47 km away
- 4.5south of the Fiji Islands · 1980 days ago · 596 km deep · 33 km away
- 4.2south of the Fiji Islands · 1979 days ago · 612 km deep · 50 km away
- 4.4south of the Fiji Islands · 1978 days ago · 564 km deep · 75 km away
- 4.2Fiji region · 1965 days ago · 629 km deep · 87 km away
- 4.2Fiji region · 1957 days ago · 601 km deep · 76 km away
- 4.2Fiji region · 1955 days ago · 566 km deep · 92 km away
- 4.3Fiji region · 1952 days ago · 620 km deep · 67 km away
- 4.4south of the Fiji Islands · 1949 days ago · 599 km deep · 75 km away
- 4.5Fiji region · 1939 days ago · 579 km deep · 43 km away
- 4.2south of the Fiji Islands · 1938 days ago · 583 km deep · 81 km away
Before
- 4.7south of the Fiji Islands · 2000 days ago · 568 km deep · 48 km away
- 4.1Fiji region · 2004 days ago · 619 km deep · 58 km away
- 4.6Fiji region · 2007 days ago · 606 km deep · 7 km away
- 6.0Fiji region · 2008 days ago · 595 km deep · 10 km away · felt by 1
- 4.2Fiji region · 2022 days ago · 598 km deep · 11 km away
Earthquakes todayFiji earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000e24m (also filed as usauto6000e24m, iscgem620351248). Read Wed, Sep 30, 2026, 12:25 PM UTC.