M4.2 earthquake 87 km NNW of Hihifo, Tonga
A magnitude 4.2 earthquake struck 87 km NNW of Hihifo, Tonga on Mon, Jul 10, 2017, 9:51 AM GMT+13 (20:51 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.1 61 km NNE 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-07-09 20:51:17 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.182° S, 173.977° 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 14.6 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- Operator assigned
- Station coverage gap
- 163°
- Stations used
- 7
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.187 km NE of Hihifo, Tonga · 3372 days ago · 127 km deep · 75 km away
- 4.6109 km WNW of Hihifo, Tonga · 3364 days ago · 10 km deep · 95 km away
- 4.587 km NE of Hihifo, Tonga · 3352 days ago · 10 km deep · 96 km away
- 4.679 km NE of Hihifo, Tonga · 3336 days ago · 10 km deep · 83 km away
- 4.5114 km NE of Hihifo, Tonga · 3332 days ago · 10 km deep · 93 km away
- 4.536 km NNW of Hihifo, Tonga · 3328 days ago · 112 km deep · 55 km away
- 4.2116 km NW of Hihifo, Tonga · 3314 days ago · 256 km deep · 77 km away
- 5.161 km NNE of Hihifo, Tonga · 3313 days ago · 72 km deep · 42 km away · felt by 1
Before
- 4.5117 km NE of Hihifo, Tonga · 3380 days ago · 35 km deep · 93 km away
- 4.3137 km NNE of Hihifo, Tonga · 3381 days ago · 10 km deep · 83 km away
- 4.585 km NNE of Hihifo, Tonga · 3392 days ago · 26 km deep · 63 km away
- 4.9100 km NNE of Hihifo, Tonga · 3393 days ago · 10 km deep · 51 km away
- 4.6107 km NNW of Hihifo, Tonga · 3401 days ago · 84 km deep · 22 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20009xvu. Read Sat, Oct 3, 2026, 1:17 AM UTC.