Tonga earthquakes

M4.8 earthquake 78 km NNE of Hihifo, Tonga

A magnitude 4.8 earthquake struck 78 km NNE of Hihifo, Tonga on Sun, Jul 8, 2018, 4:12 AM GMT+13 (15:12 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.1 126 km NE of Hihifo, Tonga. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.8 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-07-07 15:12:51 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
15.364° S, 173.397° W
Region
Tonga
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

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 6.2 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
84°
Stations used
35

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.8 and up: 13 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 4.256 km NNE of Hihifo, Tonga · 3006 days ago · 90 km deep · 23 km away
  2. 4.5138 km SW of Gataivai, Samoa · 3005 days ago · 39 km deep · 81 km away
  3. 4.8136 km NE of Hihifo, Tonga · 2997 days ago · 10 km deep · 65 km away
  4. 4.623 km NNW of Hihifo, Tonga · 2994 days ago · 60 km deep · 66 km away
  5. 4.690 km NE of Hihifo, Tonga · 2984 days ago · 35 km deep · 30 km away
  6. 4.393 km N of Hihifo, Tonga · 2976 days ago · 35 km deep · 65 km away
  7. 4.9108 km N of Hihifo, Tonga · 2971 days ago · 33 km deep · 50 km away · felt by 1
  8. 4.6134 km NNE of Hihifo, Tonga · 2965 days ago · 10 km deep · 63 km away
  9. 5.1126 km NE of Hihifo, Tonga · 2965 days ago · 10 km deep · 49 km away
  10. 4.6102 km NNE of Hihifo, Tonga · 2964 days ago · 19 km deep · 32 km away
  11. 4.6111 km ENE of Hihifo, Tonga · 2961 days ago · 10 km deep · 51 km away
  12. 4.8123 km NE of Hihifo, Tonga · 2958 days ago · 10 km deep · 51 km away
  13. 4.4Tonga · 2956 days ago · 144 km deep · 89 km away

Before

  1. 4.683 km NNE of Hihifo, Tonga · 3017 days ago · 35 km deep · 21 km away
  2. 4.9124 km ENE of Hihifo, Tonga · 3021 days ago · 10 km deep · 83 km away
  3. 5.3117 km ENE of Hihifo, Tonga · 3031 days ago · 55 km deep · 59 km away · felt by 9
  4. 4.4119 km N of Hihifo, Tonga · 3032 days ago · 31 km deep · 57 km away
  5. 4.5129 km NNE of Hihifo, Tonga · 3035 days ago · 25 km deep · 54 km away
  6. 4.378 km ESE of Hihifo, Tonga · 3036 days ago · 39 km deep · 99 km away
  7. 5.0Samoa Islands region · 3038 days ago · 10 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000fz3m. Read Fri, Oct 2, 2026, 6:09 PM UTC.