M4.5 earthquake 155 km W of Neiafu, Tonga
A magnitude 4.5 earthquake struck 155 km W of Neiafu, Tonga on Sun, Apr 20, 2025, 1:38 AM GMT+13 (12:38 UTC), 205 km (127 mi) below the surface.
A larger quake followed: M6.4 142 km W of Neiafu, 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
- 2025-04-19 12:38:04 UTC
- Depth
- 204.7 km (127.2 mi), intermediate-depth
- Epicenter
- 18.578° S, 175.454° 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 13.3 km horizontally, 8.5 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 83°
- Stations used
- 44
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.6171 km NW of Neiafu, Tonga · 516 days ago · 239 km deep · 93 km away
- 6.4142 km W of Neiafu, Tonga · 508 days ago · 260 km deep · 20 km away · felt by 8
- 4.2160 km WNW of Pangai, Tonga · 489 days ago · 269 km deep · 69 km away
- 4.4141 km WNW of Pangai, Tonga · 488 days ago · 249 km deep · 93 km away
- 4.6162 km NW of Fangale’ounga, Tonga · 486 days ago · 198 km deep · 35 km away
- 4.2132 km WNW of Neiafu, Tonga · 474 days ago · 264 km deep · 43 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000q77v. Read Sun, Oct 4, 2026, 9:10 AM UTC.