M4.5 earthquake 91 km S of Hihifo, Tonga
A magnitude 4.5 earthquake struck 91 km S of Hihifo, Tonga on Fri, Sep 7, 2018, 6:08 PM GMT+13 (05:08 UTC), 95 km (59 mi) below the surface.
A larger quake followed: M5.4 86 km SW 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-09-07 05:08:54 UTC
- Depth
- 95.4 km (59.3 mi), intermediate-depth
- Epicenter
- 16.771° S, 173.665° 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 9.5 km horizontally, 9.2 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 104°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.6104 km SSW of Hihifo, Tonga · 2931 days ago · 10 km deep · 67 km away
- 4.578 km S of Hihifo, Tonga · 2931 days ago · 108 km deep · 16 km away
- 4.3147 km NNW of Neiafu, Tonga · 2927 days ago · 146 km deep · 92 km away
- 4.8121 km SSW of Hihifo, Tonga · 2926 days ago · 10 km deep · 60 km away
- 4.5128 km SSE of Hihifo, Tonga · 2925 days ago · 61 km deep · 37 km away
- 4.589 km SE of Hihifo, Tonga · 2919 days ago · 35 km deep · 44 km away
- 5.486 km SW of Hihifo, Tonga · 2899 days ago · 200 km deep · 73 km away
- 4.661 km SW of Hihifo, Tonga · 2894 days ago · 60 km deep · 66 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000hgma. Read Fri, Oct 2, 2026, 11:23 AM UTC.