Tonga earthquakes

M4.5 earthquake 104 km S of Hihifo, Tonga

A magnitude 4.5 earthquake struck 104 km S of Hihifo, Tonga on Sat, Jul 25, 2015, 9:28 PM GMT-12 (09:28 UTC), 229 km (142 mi) below the surface.

A larger quake followed: M5.7 82 km SW of Hihifo, Tonga. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2015-07-26 09:28:35 UTC
Depth
228.7 km (142.1 mi), intermediate-depth
Epicenter
16.887° S, 173.931° 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.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 10.6 km horizontally, 11.8 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
113°
Stations used
22

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.2115 km S of Hihifo, Tonga · 4084 days ago · 93 km deep · 12 km away
  2. 5.782 km SW of Hihifo, Tonga · 4081 days ago · 176 km deep · 65 km away
  3. 4.4161 km NNW of Neiafu, Tonga · 4078 days ago · 152 km deep · 93 km away
  4. 4.7134 km N of Neiafu, Tonga · 4069 days ago · 57 km deep · 62 km away · felt by 1
  5. 4.4136 km NNW of Neiafu, Tonga · 4068 days ago · 131 km deep · 81 km away
  6. 4.389 km SSW of Hihifo, Tonga · 4059 days ago · 142 km deep · 35 km away
  7. 4.680 km SSE of Hihifo, Tonga · 4055 days ago · 37 km deep · 57 km away
  8. 4.578 km SSE of Hihifo, Tonga · 4044 days ago · 70 km deep · 67 km away
  9. 4.491 km SSE of Hihifo, Tonga · 4044 days ago · 211 km deep · 50 km away
  10. 4.1116 km S of Hihifo, Tonga · 4039 days ago · 161 km deep · 25 km away

Before

  1. 4.4127 km SSW of Hihifo, Tonga · 4093 days ago · 83 km deep · 30 km away
  2. 4.6168 km NNE of Neiafu, Tonga · 4116 days ago · 10 km deep · 98 km away
  3. 4.4147 km NNW of Neiafu, Tonga · 4117 days ago · 104 km deep · 63 km away
  4. 4.239 km SW of Hihifo, Tonga · 4117 days ago · 108 km deep · 78 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000328b. Read Mon, Oct 5, 2026, 1:57 PM UTC.