M4.9 earthquake 82 km NNE of Hihifo, Tonga
A magnitude 4.9 earthquake struck 82 km NNE of Hihifo, Tonga on Sat, Mar 3, 2018, 6:10 AM GMT+14 (16:10 UTC), 36 km (23 mi) below the surface.
A larger quake followed: M5.1 92 km NNE 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
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-02 16:10:54 UTC
- Depth
- 36.5 km (22.6 mi), shallow
- Epicenter
- 15.303° S, 173.431° 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 14.4 km horizontally, 7.3 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 97°
- Stations used
- 61
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.093 km ENE of Hihifo, Tonga · 3133 days ago · 10 km deep · 53 km away
- 4.873 km NE of Hihifo, Tonga · 3129 days ago · 10 km deep · 24 km away
- 4.697 km NNE of Hihifo, Tonga · 3123 days ago · 10 km deep · 21 km away
- 5.192 km NNE of Hihifo, Tonga · 3107 days ago · 10 km deep · 13 km away
- 4.899 km ENE of Hihifo, Tonga · 3092 days ago · 71 km deep · 47 km away
- 4.5103 km NNE of Hihifo, Tonga · 3091 days ago · 35 km deep · 22 km away
- 4.563 km N of Hihifo, Tonga · 3085 days ago · 55 km deep · 32 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000db44. Read Fri, Oct 2, 2026, 11:30 AM UTC.