M4.6 earthquake 97 km NNE of Hihifo, Tonga
A magnitude 4.6 earthquake struck 97 km NNE of Hihifo, Tonga on Fri, Mar 16, 2018, 1:36 AM GMT+14 (11:36 UTC), 10 km (6 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-15 11:36:45 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.124° S, 173.502° 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 8.0 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- Operator assigned
- Station coverage gap
- 85°
- Stations used
- 16
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 5 in the 30 days before it.
After
- 5.192 km NNE of Hihifo, Tonga · 3107 days ago · 10 km deep · 10 km away
- 4.899 km ENE of Hihifo, Tonga · 3092 days ago · 71 km deep · 64 km away
- 4.5103 km NNE of Hihifo, Tonga · 3091 days ago · 35 km deep · 24 km away
- 4.563 km N of Hihifo, Tonga · 3085 days ago · 55 km deep · 37 km away
- 4.680 km NE of Hihifo, Tonga · 3074 days ago · 10 km deep · 48 km away
Before
- 4.873 km NE of Hihifo, Tonga · 3129 days ago · 10 km deep · 45 km away
- 5.093 km ENE of Hihifo, Tonga · 3133 days ago · 10 km deep · 72 km away
- 4.982 km NNE of Hihifo, Tonga · 3136 days ago · 36 km deep · 21 km away
- 4.4125 km NE of Hihifo, Tonga · 3137 days ago · 10 km deep · 46 km away
- 4.974 km NNE of Hihifo, Tonga · 3150 days ago · 35 km deep · 30 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000d7wm. Read Fri, Oct 2, 2026, 2:04 PM UTC.