M4.4 earthquake 142 km NE of Hihifo, Tonga
A magnitude 4.4 earthquake struck 142 km NE of Hihifo, Tonga on Fri, Jul 28, 2017, 5:51 PM GMT+13 (04:51 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.7 137 km SW of Gataivai, Samoa. 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
- 2017-07-28 04:51:09 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.034° S, 172.862° 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 6.7 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- Operator assigned
- Station coverage gap
- 118°
- Stations used
- 21
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.587 km NE of Hihifo, Tonga · 3352 days ago · 10 km deep · 58 km away
- 5.7137 km SW of Gataivai, Samoa · 3336 days ago · 8 km deep · 38 km away
- 4.679 km NE of Hihifo, Tonga · 3335 days ago · 10 km deep · 63 km away
- 4.5114 km NE of Hihifo, Tonga · 3331 days ago · 10 km deep · 30 km away
- 4.5122 km E of Hihifo, Tonga · 3322 days ago · 10 km deep · 86 km away
- 5.161 km NNE of Hihifo, Tonga · 3313 days ago · 72 km deep · 96 km away · felt by 1
- 5.0157 km SSW of Lotofag?, Samoa · 3311 days ago · 10 km deep · 52 km away
- 4.7132 km ENE of Hihifo, Tonga · 3305 days ago · 10 km deep · 36 km away
- 4.6115 km NNE of Hihifo, Tonga · 3294 days ago · 11 km deep · 59 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000a3me. Read Fri, Oct 2, 2026, 7:13 PM UTC.