M4.6 earthquake 123 km NW of Hihifo, Tonga
A magnitude 4.6 earthquake struck 123 km NW of Hihifo, Tonga on Mon, Jul 5, 2021, 7:44 PM GMT+13 (06:44 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.0 85 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
- 4.6 (mb), light
- Local time
- UTC
- 2021-07-05 06:44:03 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.031° S, 174.442° 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 7.2 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.24
- Depth from
- Operator assigned
- Station coverage gap
- 146°
- Stations used
- 11
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.570 km N of Hihifo, Tonga · 1894 days ago · 74 km deep · 65 km away
- 5.085 km N of Hihifo, Tonga · 1893 days ago · 10 km deep · 68 km away
- 4.896 km N of Hihifo, Tonga · 1893 days ago · 93 km deep · 61 km away
- 4.875 km NW of Hihifo, Tonga · 1892 days ago · 175 km deep · 59 km away
- 4.545 km N of Hihifo, Tonga · 1867 days ago · 67 km deep · 91 km away
- 4.568 km N of Hihifo, Tonga · 1866 days ago · 133 km deep · 90 km away
- 4.535 km N of Hihifo, Tonga · 1857 days ago · 83 km deep · 96 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000etn5 (also filed as iscgem620927932). Read Wed, Sep 30, 2026, 11:30 AM UTC.