M4.9 earthquake 129 km E of ‘Ohonua, Tonga
A magnitude 4.9 earthquake struck 129 km E of ‘Ohonua, Tonga on Sat, Jul 1, 2017, 1:51 AM GMT+13 (12:51 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.6 112 km ESE of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-06-30 12:51:28 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 21.246° S, 173.706° 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 5.1 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- Operator assigned
- Station coverage gap
- 49°
- Stations used
- 138
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.0123 km E of ‘Ohonua, Tonga · 3383 days ago · 10 km deep · 28 km away
- 4.4132 km ESE of Pangai, Tonga · 3381 days ago · 35 km deep · 95 km away
- 5.176 km ENE of Kolonga, Tonga · 3378 days ago · 35 km deep · 81 km away
- 5.6112 km ESE of Pangai, Tonga · 3367 days ago · 16 km deep · 100 km away
- 4.9101 km ENE of ‘Ohonua, Tonga · 3364 days ago · 10 km deep · 64 km away
- 4.681 km E of ‘Ohonua, Tonga · 3363 days ago · 10 km deep · 49 km away
- 4.5116 km SE of Pangai, Tonga · 3352 days ago · 10 km deep · 83 km away
- 4.9Tonga · 3338 days ago · 10 km deep · 66 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100095hb. Read Mon, Oct 5, 2026, 3:00 AM UTC.