Tonga earthquakes

M4.5 earthquake 166 km SSW of Hihifo, Tonga

A magnitude 4.5 earthquake struck 166 km SSW of Hihifo, Tonga on Tue, Sep 23, 2025, 7:56 AM GMT-12 (19:56 UTC), 207 km (128 mi) below the surface.

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The earthquake

Magnitude
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-09-23 19:56:45 UTC
Depth
206.5 km (128.3 mi), intermediate-depth
Epicenter
17.208° S, 174.659° 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 14.9 km horizontally, 13.1 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
117°
Stations used
25

Nearby

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.3160 km SW of Hihifo, Tonga · 360 days ago · 177 km deep · 20 km away
  2. 4.3157 km NW of Neiafu, Tonga · 351 days ago · 241 km deep · 47 km away
  3. 4.3139 km NW of Neiafu, Tonga · 345 days ago · 182 km deep · 87 km away
  4. 4.2158 km NW of Neiafu, Tonga · 339 days ago · 226 km deep · 72 km away
  5. 4.4131 km SW of Hihifo, Tonga · 326 days ago · 187 km deep · 36 km away

Before

  1. 4.4122 km NNW of Neiafu, Tonga · 387 days ago · 138 km deep · 62 km away
  2. 4.3163 km SW of Hihifo, Tonga · 399 days ago · 214 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000rcdy. Read Mon, Oct 5, 2026, 7:49 AM UTC.