M4.8 earthquake 162 km ESE of Hihifo, Tonga
A magnitude 4.8 earthquake struck 162 km ESE of Hihifo, Tonga on Tue, Mar 16, 2021, 5:47 AM GMT+14 (15:47 UTC), 10 km (6 mi) below the surface.
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
- 2021-03-15 15:47:48 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 16.423° S, 172.354° 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 9.6 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- Operator assigned
- Station coverage gap
- 74°
- Stations used
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000dw31. Read Wed, Sep 30, 2026, 4:13 PM UTC.