M4.3 earthquake 151 km WNW of Pangai, Tonga
A magnitude 4.3 earthquake struck 151 km WNW of Pangai, Tonga on Thu, Apr 20, 2017, 4:19 PM GMT+13 (03:19 UTC), 207 km (129 mi) below the surface.
A larger quake followed: M4.5 233 km WNW 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-04-20 03:19:12 UTC
- Depth
- 206.8 km (128.5 mi), intermediate-depth
- Epicenter
- 19.467° S, 175.755° 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 10.1 km horizontally, 7.3 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 48°
- Stations used
- 71
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.5233 km WNW of Pangai, Tonga · 3449 days ago · 76 km deep · 81 km away
- 4.484 km WNW of Pangai, Tonga · 3440 days ago · 10 km deep · 69 km away
- 4.2Fiji region · 3429 days ago · 274 km deep · 34 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10008j5y. Read Thu, Oct 1, 2026, 8:12 AM UTC.