M5.2 earthquake 79 km NW of Hihifo, Tonga
A magnitude 5.2 earthquake struck 79 km NW of Hihifo, Tonga on Mon, Sep 13, 2021, 12:57 AM GMT+13 (11:57 UTC), 187 km (117 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.2 (mww), moderate
- Local time
- UTC
- 2021-09-12 11:57:37 UTC
- Depth
- 187.5 km (116.5 mi), intermediate-depth
- Epicenter
- 15.426° S, 174.300° 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.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Normal
- Moment magnitude
- 5.2 Mww
- Nodal plane 1
- Strike 226°, dip 45°, rake -72°
- Nodal plane 2
- Strike 22°, dip 48°, rake -107°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 9.8 km horizontally, 6.3 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 56°
- Stations used
- 101
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.2 and up: 6 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.828 km N of Hihifo, Tonga · 1843 days ago · 59 km deep · 59 km away
- 4.995 km N of Hihifo, Tonga · 1842 days ago · 110 km deep · 56 km away · felt by 1
- 4.486 km WSW of Hihifo, Tonga · 1840 days ago · 190 km deep · 93 km away
- 5.121 km NNE of Hihifo, Tonga · 1839 days ago · 67 km deep · 74 km away · felt by 3
- 4.0124 km W of Hihifo, Tonga · 1808 days ago · 258 km deep · 82 km away
- 4.313 km E of Hihifo, Tonga · 1793 days ago · 71 km deep · 91 km away
Before
- 4.86 km S of Hihifo, Tonga · 1849 days ago · 82 km deep · 85 km away
- 4.692 km NNE of Hihifo, Tonga · 1852 days ago · 10 km deep · 79 km away
- 4.535 km N of Hihifo, Tonga · 1857 days ago · 83 km deep · 58 km away
- 4.6Tonga · 1863 days ago · 69 km deep · 86 km away
- 4.568 km N of Hihifo, Tonga · 1866 days ago · 133 km deep · 68 km away
- 4.545 km N of Hihifo, Tonga · 1867 days ago · 67 km deep · 58 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000faix (also filed as iscgem621070681). Read Wed, Sep 30, 2026, 1:48 PM UTC.