M4.7 earthquake 91 km ESE of Hihifo, Tonga
A magnitude 4.7 earthquake struck 91 km ESE of Hihifo, Tonga on Fri, Mar 23, 2018, 9:54 PM GMT+14 (07:54 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.8 99 km ENE 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
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-03-23 07:54:57 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 16.299° S, 173.022° 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 6.3 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- Operator assigned
- Station coverage gap
- 67°
- Stations used
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.5102 km SSE of Hihifo, Tonga · 3108 days ago · 10 km deep · 82 km away
- 4.580 km SSE of Hihifo, Tonga · 3107 days ago · 15 km deep · 61 km away
- 4.475 km ESE of Hihifo, Tonga · 3093 days ago · 35 km deep · 17 km away
- 4.899 km ENE of Hihifo, Tonga · 3092 days ago · 71 km deep · 93 km away
- 4.680 km NE of Hihifo, Tonga · 3074 days ago · 10 km deep · 95 km away
- 4.544 km S of Hihifo, Tonga · 3073 days ago · 140 km deep · 87 km away
- 4.663 km ESE of Hihifo, Tonga · 3066 days ago · 10 km deep · 29 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000daps. Read Fri, Oct 2, 2026, 9:41 AM UTC.