M4.5 earthquake 164 km ENE of Hihifo, Tonga
A magnitude 4.5 earthquake struck 164 km ENE of Hihifo, Tonga on Sat, Apr 10, 2021, 2:05 PM GMT+13 (01:05 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.8 85 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
- 4.5 (mb), light
- Local time
- UTC
- 2021-04-10 01:05:59 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.658° S, 172.293° 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 9.7 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.22
- Depth from
- Operator assigned
- Station coverage gap
- 177°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.885 km NE of Hihifo, Tonga · 1992 days ago · 10 km deep · 99 km away
- 4.679 km ENE of Hihifo, Tonga · 1970 days ago · 10 km deep · 91 km away
- 4.8125 km E of Hihifo, Tonga · 1946 days ago · 10 km deep · 49 km away
- 4.5111 km ENE of Hihifo, Tonga · 1945 days ago · 10 km deep · 70 km away
- 4.4153 km ESE of Hihifo, Tonga · 1941 days ago · 10 km deep · 85 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000e224. Read Wed, Sep 30, 2026, 7:24 PM UTC.