M4.3 earthquake 158 km NW of Neiafu, Tonga
A magnitude 4.3 earthquake struck 158 km NW of Neiafu, Tonga on Fri, Jul 17, 2020, 7:54 AM GMT+13 (18:54 UTC), 233 km (145 mi) below the surface.
A larger quake followed: M5.2 148 km N of Neiafu, 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
- 2020-07-16 18:54:04 UTC
- Depth
- 233.0 km (144.8 mi), intermediate-depth
- Epicenter
- 17.633° S, 175.043° 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 9.8 km horizontally, 6.8 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 73°
- Stations used
- 53
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.3180 km NW of Neiafu, Tonga · 2264 days ago · 262 km deep · 32 km away
- 5.2148 km N of Neiafu, Tonga · 2250 days ago · 92 km deep · 90 km away
- 4.5141 km SSW of Hihifo, Tonga · 2250 days ago · 151 km deep · 93 km away
- 4.8145 km WNW of Neiafu, Tonga · 2219 days ago · 230 km deep · 47 km away
- 4.493 km NW of Neiafu, Tonga · 2217 days ago · 90 km deep · 65 km away
- 4.4184 km NW of Neiafu, Tonga · 2208 days ago · 146 km deep · 32 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000b2qi. Read Thu, Oct 1, 2026, 5:24 AM UTC.