M4.8 earthquake 6 km S of Hihifo, Tonga
A magnitude 4.8 earthquake struck 6 km S of Hihifo, Tonga on Tue, Sep 7, 2021, 4:53 PM GMT+13 (03:53 UTC), 82 km (51 mi) below the surface.
A larger quake followed: M5.4 81 km NE 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
- 4.8 (mb), light
- Local time
- UTC
- 2021-09-07 03:53:59 UTC
- Depth
- 82.4 km (51.2 mi), intermediate-depth
- Epicenter
- 16.013° S, 173.793° 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.
- Location uncertainty
- About 11.3 km horizontally, 6.5 km in depth
- Magnitude uncertainty
- ±0.03
- Depth from
- From location
- Station coverage gap
- 59°
- Stations used
- 50
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 11 in the 60 days after this one and 9 in the 30 days before it.
After
- 5.279 km NW of Hihifo, Tonga · 1844 days ago · 187 km deep · 85 km away
- 4.828 km N of Hihifo, Tonga · 1842 days ago · 59 km deep · 35 km away
- 4.486 km WSW of Hihifo, Tonga · 1839 days ago · 190 km deep · 84 km away
- 5.121 km NNE of Hihifo, Tonga · 1838 days ago · 67 km deep · 28 km away · felt by 3
- 4.371 km NE of Hihifo, Tonga · 1830 days ago · 35 km deep · 75 km away
- 4.557 km SE of Hihifo, Tonga · 1829 days ago · 57 km deep · 52 km away
- 5.481 km NE of Hihifo, Tonga · 1820 days ago · 35 km deep · 86 km away · felt by 4
- 4.331 km ESE of Hihifo, Tonga · 1810 days ago · 107 km deep · 29 km away
- 4.313 km E of Hihifo, Tonga · 1793 days ago · 71 km deep · 13 km away
- 4.774 km SSE of Hihifo, Tonga · 1793 days ago · 10 km deep · 69 km away
- 4.294 km NE of Hihifo, Tonga · 1792 days ago · 10 km deep · 98 km away
Before
- 4.566 km E of Hihifo, Tonga · 1850 days ago · 35 km deep · 67 km away
- 4.692 km NNE of Hihifo, Tonga · 1851 days ago · 10 km deep · 99 km away
- 4.535 km N of Hihifo, Tonga · 1856 days ago · 83 km deep · 42 km away
- 4.6Tonga · 1863 days ago · 69 km deep · 25 km away
- 4.386 km SSW of Hihifo, Tonga · 1865 days ago · 70 km deep · 82 km away
- 4.568 km N of Hihifo, Tonga · 1866 days ago · 133 km deep · 75 km away
- 4.545 km N of Hihifo, Tonga · 1867 days ago · 67 km deep · 53 km away
- 4.551 km SE of Hihifo, Tonga · 1878 days ago · 65 km deep · 48 km away
- 4.953 km NE of Hihifo, Tonga · 1878 days ago · 78 km deep · 59 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000f8rv. Read Wed, Sep 30, 2026, 4:50 AM UTC.