M4.3 earthquake 208 km W of Hihifo, Tonga
A magnitude 4.3 earthquake struck 208 km W of Hihifo, Tonga on Sun, Sep 30, 2018, 9:24 PM GMT-12 (09:24 UTC), 339 km (211 mi) below the surface.
A larger quake followed: M4.4 142 km WNW 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-10-01 09:24:38 UTC
- Depth
- 339.5 km (210.9 mi), deep
- Epicenter
- 16.129° S, 175.735° 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 16.5 km horizontally, 15.6 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 120°
- Stations used
- 23
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.3150 km WSW of Hihifo, Tonga · 2919 days ago · 332 km deep · 72 km away
- 4.2232 km WSW of Hihifo, Tonga · 2916 days ago · 296 km deep · 93 km away
- 4.0201 km WSW of Hihifo, Tonga · 2912 days ago · 332 km deep · 83 km away
- 4.3260 km SE of Alo, Wallis and Futuna · 2899 days ago · 379 km deep · 87 km away
- 4.4142 km WNW of Hihifo, Tonga · 2890 days ago · 317 km deep · 100 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000h7m8. Read Fri, Oct 2, 2026, 8:55 PM UTC.