M4.9 earthquake 115 km ENE of Hihifo, Tonga
A magnitude 4.9 earthquake struck 115 km ENE of Hihifo, Tonga on Tue, Sep 1, 1981, 1:34 PM GMT-11 (00:34 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.5 102 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
- 4.9 (ms), light
- Local time
- UTC
- 1981-09-02 00:34:27 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.419° S, 172.866° W
- Region
- Tonga
- 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 1.9 and up: 12 in the 60 days after this one and 10 in the 30 days before it.
After
- 4.4126 km E of Hihifo, Tonga · 16462 days ago · 33 km deep · 45 km away
- 4.8136 km ENE of Hihifo, Tonga · 16462 days ago · 33 km deep · 33 km away
- 4.8127 km NE of Hihifo, Tonga · 16461 days ago · 33 km deep · 40 km away
- 5.5102 km ENE of Hihifo, Tonga · 16461 days ago · 33 km deep · 13 km away
- 4.7116 km NE of Hihifo, Tonga · 16461 days ago · 33 km deep · 15 km away
- 4.9104 km N of Hihifo, Tonga · 16452 days ago · 33 km deep · 91 km away
- 4.8110 km NE of Hihifo, Tonga · 16446 days ago · 33 km deep · 36 km away
- 4.737 km NE of Hihifo, Tonga · 16440 days ago · 123 km deep · 80 km away
- 4.8107 km E of Hihifo, Tonga · 16426 days ago · 33 km deep · 72 km away
- 4.772 km N of Hihifo, Tonga · 16425 days ago · 33 km deep · 90 km away
- 5.4102 km NE of Hihifo, Tonga · 16420 days ago · 33 km deep · 33 km away
- 4.9126 km ENE of Hihifo, Tonga · 16413 days ago · 48 km deep · 10 km away
Before
- 5.6104 km NE of Hihifo, Tonga · 16462 days ago · 33 km deep · 40 km away
- 5.788 km NE of Hihifo, Tonga · 16462 days ago · 33 km deep · 48 km away
- 4.6101 km NNE of Hihifo, Tonga · 16462 days ago · 33 km deep · 58 km away
- 5.1111 km NE of Hihifo, Tonga · 16462 days ago · 33 km deep · 30 km away
- 4.8112 km NNE of Hihifo, Tonga · 16462 days ago · 33 km deep · 63 km away
- 4.5126 km ENE of Hihifo, Tonga · 16462 days ago · 33 km deep · 41 km away
- 5.2113 km NNE of Hihifo, Tonga · 16462 days ago · 33 km deep · 69 km away
- 5.6105 km NNE of Hihifo, Tonga · 16462 days ago · 33 km deep · 52 km away
- 7.7133 km NE of Hihifo, Tonga · 16462 days ago · 25 km deep · 56 km away
- 5.8105 km NNE of Hihifo, Tonga · 16462 days ago · 33 km deep · 55 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001fme. Read Sun, Sep 27, 2026, 2:22 PM UTC.