M4.5 earthquake 92 km NNE of Hihifo, Tonga
A magnitude 4.5 earthquake struck 92 km NNE of Hihifo, Tonga on Thu, Apr 29, 2021, 2:01 PM GMT+13 (01:01 UTC), 29 km (18 mi) below the surface.
A larger quake followed: M4.7 66 km N 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
- 4.5 (mb), light
- Local time
- UTC
- 2021-04-29 01:01:55 UTC
- Depth
- 29.4 km (18.3 mi), shallow
- Epicenter
- 15.162° S, 173.522° 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 14.8 km horizontally, 6.0 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 126°
- Stations used
- 20
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.650 km NNE of Hihifo, Tonga · 1975 days ago · 69 km deep · 43 km away
- 4.679 km ENE of Hihifo, Tonga · 1970 days ago · 10 km deep · 65 km away
- 4.766 km N of Hihifo, Tonga · 1969 days ago · 22 km deep · 35 km away
- 4.6126 km NNE of Hihifo, Tonga · 1961 days ago · 10 km deep · 43 km away
- 4.3127 km NNE of Hihifo, Tonga · 1956 days ago · 10 km deep · 36 km away
- 4.5136 km NNE of Hihifo, Tonga · 1945 days ago · 10 km deep · 45 km away
- 4.5111 km ENE of Hihifo, Tonga · 1945 days ago · 10 km deep · 72 km away
- 4.422 km NW of Hihifo, Tonga · 1944 days ago · 106 km deep · 88 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e0p5. Read Wed, Sep 30, 2026, 10:19 PM UTC.