M4.5 earthquake 78 km S of Hihifo, Tonga
A magnitude 4.5 earthquake struck 78 km S of Hihifo, Tonga on Mon, Sep 24, 2018, 11:06 AM GMT+13 (22:06 UTC), 108 km (67 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
- 2018-09-23 22:06:54 UTC
- Depth
- 108.4 km (67.4 mi), intermediate-depth
- Epicenter
- 16.660° S, 173.765° 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 9.7 km horizontally, 7.2 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 98°
- Stations used
- 107
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.3147 km NNW of Neiafu, Tonga · 2927 days ago · 146 km deep · 94 km away
- 4.8121 km SSW of Hihifo, Tonga · 2926 days ago · 10 km deep · 58 km away
- 4.5128 km SSE of Hihifo, Tonga · 2925 days ago · 61 km deep · 53 km away
- 4.589 km SE of Hihifo, Tonga · 2919 days ago · 35 km deep · 51 km away
- 5.486 km SW of Hihifo, Tonga · 2899 days ago · 200 km deep · 59 km away
- 4.661 km SW of Hihifo, Tonga · 2894 days ago · 60 km deep · 50 km away
- 4.454 km ESE of Hihifo, Tonga · 2884 days ago · 126 km deep · 77 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000hj4x. Read Fri, Oct 2, 2026, 7:24 AM UTC.