Tonga earthquakes

M5.1 earthquake 215 km SSW of ‘Ohonua, Tonga

A magnitude 5.1 earthquake struck 215 km SSW of ‘Ohonua, Tonga on Mon, Jul 11, 1977, 5:44 PM GMT+13 (04:44 UTC), 42 km (26 mi) below the surface.

A larger quake followed: M5.3 224 km SSW of ‘Ohonua, Tonga. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
5.1 (ms), moderate
Local time
UTC
1977-07-11 04:44:50 UTC
Depth
42.0 km (26.1 mi), shallow
Epicenter
23.180° S, 175.615° 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.

Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 2.1 and up: 8 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 5.0214 km S of ‘Ohonua, Tonga · 17968 days ago · 63 km deep · 32 km away
  2. 4.4269 km S of ‘Ohonua, Tonga · 17968 days ago · 33 km deep · 74 km away
  3. 4.5161 km SSW of ‘Ohonua, Tonga · 17950 days ago · 123 km deep · 54 km away
  4. 4.8234 km SW of ‘Ohonua, Tonga · 17947 days ago · 115 km deep · 72 km away
  5. 5.0186 km S of ‘Ohonua, Tonga · 17943 days ago · 33 km deep · 64 km away
  6. 4.9215 km S of ‘Ohonua, Tonga · 17942 days ago · 34 km deep · 70 km away
  7. 4.9160 km SW of ‘Ohonua, Tonga · 17937 days ago · 33 km deep · 81 km away
  8. 5.3224 km SSW of ‘Ohonua, Tonga · 17935 days ago · 33 km deep · 29 km away

Before

  1. 5.5125 km S of ‘Ohonua, Tonga · 17972 days ago · 33 km deep · 96 km away
  2. 4.8278 km SSW of ‘Ohonua, Tonga · 17981 days ago · 33 km deep · 67 km away
  3. 4.7197 km SSW of ‘Ohonua, Tonga · 17981 days ago · 33 km deep · 43 km away
  4. 4.9142 km SSW of ‘Ohonua, Tonga · 17981 days ago · 33 km deep · 74 km away
  5. 4.7236 km S of ‘Ohonua, Tonga · 17982 days ago · 33 km deep · 46 km away
  6. 5.2204 km S of ‘Ohonua, Tonga · 17982 days ago · 38 km deep · 43 km away
  7. 4.8244 km S of ‘Ohonua, Tonga · 17983 days ago · 33 km deep · 45 km away
  8. 4.7243 km S of ‘Ohonua, Tonga · 17983 days ago · 47 km deep · 49 km away
  9. 5.4160 km SSW of ‘Ohonua, Tonga · 17985 days ago · 51 km deep · 55 km away
  10. 4.7146 km SSW of ‘Ohonua, Tonga · 17985 days ago · 33 km deep · 82 km away
  11. 4.9212 km S of ‘Ohonua, Tonga · 17987 days ago · 33 km deep · 81 km away
  12. 5.5200 km SSW of ‘Ohonua, Tonga · 17987 days ago · 33 km deep · 46 km away
  13. 4.8200 km SW of ‘Ohonua, Tonga · 17988 days ago · 98 km deep · 60 km away
  14. 4.5190 km SSW of Vaini, Tonga · 17988 days ago · 138 km deep · 75 km away
  15. 6.8Tonga region · 17989 days ago · 65 km deep · 44 km away
  16. 4.7231 km SW of ‘Ohonua, Tonga · 17999 days ago · 123 km deep · 65 km away

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000ppa. Read Tue, Sep 22, 2026, 7:06 AM UTC.