M4.5 earthquake 119 km E of Pangai, Tonga
A magnitude 4.5 earthquake struck 119 km E of Pangai, Tonga on Mon, Sep 18, 2017, 8:36 AM GMT+13 (19:36 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 137 km SE 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
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-09-17 19:36:29 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 19.846° S, 173.210° 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 9.4 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- Operator assigned
- Station coverage gap
- 136°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.447 km ESE of Pangai, Tonga · 3303 days ago · 10 km deep · 78 km away
- 4.4144 km E of Pangai, Tonga · 3272 days ago · 10 km deep · 25 km away
- 4.5105 km ESE of Pangai, Tonga · 3271 days ago · 10 km deep · 54 km away
- 4.4114 km ESE of Pangai, Tonga · 3271 days ago · 10 km deep · 54 km away
- 4.677 km SE of Pangai, Tonga · 3264 days ago · 10 km deep · 84 km away
- 4.2137 km ESE of Neiafu, Tonga · 3260 days ago · 10 km deep · 83 km away
- 4.9137 km SE of Pangai, Tonga · 3251 days ago · 10 km deep · 87 km away
Before
- 4.8112 km ESE of Pangai, Tonga · 3310 days ago · 10 km deep · 34 km away
- 4.334 km E of Pangai, Tonga · 3311 days ago · 35 km deep · 86 km away
- 4.6135 km ESE of Pangai, Tonga · 3318 days ago · 10 km deep · 42 km away
- 4.7151 km ESE of Pangai, Tonga · 3329 days ago · 10 km deep · 58 km away
- 4.6137 km SE of Neiafu, Tonga · 3329 days ago · 10 km deep · 50 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000at62. Read Mon, Oct 5, 2026, 1:36 PM UTC.