M5.4 earthquake 144 km SSW of Lotofag?, Samoa
A magnitude 5.4 earthquake struck 144 km SSW of Lotofag?, Samoa on Tue, Feb 28, 1984, 11:23 PM GMT-11 (10:23 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M6.0 94 km ENE of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mb), moderate
- Local time
- UTC
- 1984-02-29 10:23:11 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.185° S, 172.360° W
- Region
- Samoa
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.7143 km SSW of Lotofag?, Samoa · 15532 days ago · 42 km deep · 19 km away
- 6.094 km ENE of Hihifo, Tonga · 15502 days ago · 73 km deep · 85 km away
- 4.878 km ENE of Hihifo, Tonga · 15502 days ago · 33 km deep · 97 km away
- 4.9136 km E of Hihifo, Tonga · 15498 days ago · 33 km deep · 78 km away
- 5.172 km S of Gataivai, Samoa · 15495 days ago · 33 km deep · 84 km away
Earthquakes todaySamoa earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00022bs. Read Wed, Sep 30, 2026, 8:47 PM UTC.