M4.6 earthquake 63 km ESE of Hihifo, Tonga
A magnitude 4.6 earthquake struck 63 km ESE of Hihifo, Tonga on Sat, May 12, 2018, 12:48 AM GMT+13 (11:48 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.1 39 km WSW 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
- 2018-05-11 11:48:48 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 16.259° S, 173.289° 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 9.2 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- Operator assigned
- Station coverage gap
- 94°
- Stations used
- 23
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 4 in the 30 days before it.
After
- 4.567 km NE of Hihifo, Tonga · 3057 days ago · 35 km deep · 90 km away
- 4.698 km E of Hihifo, Tonga · 3043 days ago · 35 km deep · 46 km away
- 4.677 km ESE of Hihifo, Tonga · 3036 days ago · 10 km deep · 14 km away
- 4.378 km ESE of Hihifo, Tonga · 3036 days ago · 39 km deep · 20 km away
- 5.139 km WSW of Hihifo, Tonga · 3025 days ago · 120 km deep · 89 km away
- 4.9124 km ENE of Hihifo, Tonga · 3020 days ago · 10 km deep · 95 km away
- 4.695 km SE of Hihifo, Tonga · 3016 days ago · 35 km deep · 36 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000e6k0. Read Fri, Oct 2, 2026, 12:55 PM UTC.