M4.4 earthquake 143 km SSW of Hihifo, Tonga
A magnitude 4.4 earthquake struck 143 km SSW of Hihifo, Tonga on Wed, Sep 16, 2020, 4:21 PM GMT-12 (04:21 UTC), 131 km (81 mi) below the surface.
A larger quake followed: M4.9 133 km SSW 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
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-09-17 04:21:19 UTC
- Depth
- 130.6 km (81.1 mi), intermediate-depth
- Epicenter
- 17.159° S, 174.282° 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 14.8 km horizontally, 5.9 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 137°
- Stations used
- 20
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.462 km SSW of Hihifo, Tonga · 2200 days ago · 77 km deep · 82 km away
- 4.4138 km SW of Hihifo, Tonga · 2198 days ago · 213 km deep · 44 km away
- 4.770 km S of Hihifo, Tonga · 2180 days ago · 49 km deep · 90 km away
- 4.8148 km N of Neiafu, Tonga · 2178 days ago · 54 km deep · 48 km away
- 4.1111 km SSE of Hihifo, Tonga · 2176 days ago · 76 km deep · 87 km away
- 4.3159 km NW of Neiafu, Tonga · 2171 days ago · 210 km deep · 88 km away
- 4.665 km S of Hihifo, Tonga · 2171 days ago · 70 km deep · 90 km away
- 4.2106 km SSW of Hihifo, Tonga · 2166 days ago · 141 km deep · 39 km away
- 4.9133 km SSW of Hihifo, Tonga · 2151 days ago · 134 km deep · 15 km away
- 4.377 km SW of Hihifo, Tonga · 2148 days ago · 110 km deep · 72 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000bznz. Read Thu, Oct 1, 2026, 2:34 PM UTC.