M4.2 earthquake 123 km W of Hihifo, Tonga
A magnitude 4.2 earthquake struck 123 km W of Hihifo, Tonga on Sun, Jun 17, 2018, 4:52 PM GMT-12 (04:52 UTC), 249 km (154 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-06-18 04:52:51 UTC
- Depth
- 248.5 km (154.4 mi), intermediate-depth
- Epicenter
- 15.881° S, 174.943° 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 7.8 km horizontally, 8.5 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 67°
- Stations used
- 32
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.139 km WSW of Hihifo, Tonga · 3025 days ago · 120 km deep · 93 km away
- 4.4139 km NW of Hihifo, Tonga · 3012 days ago · 167 km deep · 91 km away
- 4.3218 km W of Hihifo, Tonga · 2978 days ago · 372 km deep · 98 km away
- 4.3212 km W of Hihifo, Tonga · 2977 days ago · 360 km deep · 92 km away
- 4.2107 km WNW of Hihifo, Tonga · 2975 days ago · 260 km deep · 26 km away
- 4.2119 km WNW of Hihifo, Tonga · 2972 days ago · 278 km deep · 27 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000eynp. Read Fri, Oct 2, 2026, 11:32 AM UTC.