Tonga earthquakes

M4.9 earthquake 117 km E of ‘Ohonua, Tonga

A magnitude 4.9 earthquake struck 117 km E of ‘Ohonua, Tonga on Mon, Jul 14, 1975, 11:56 PM GMT+13 (10:56 UTC), 33 km (21 mi) below the surface.

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
4.9 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1975-07-14 10:56:30 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
21.142° S, 173.833° 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.

Depth from
OPERATOR_ASSIGNED
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.9 and up: 1 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.856 km NE of ‘Ohonua, Tonga · 18678 days ago · 109 km deep · 75 km away

Before

  1. 5.785 km E of ‘Ohonua, Tonga · 18717 days ago · 15 km deep · 34 km away
  2. 5.490 km SSE of Pangai, Tonga · 18727 days ago · 23 km deep · 68 km away
  3. 4.677 km SE of Pangai, Tonga · 18731 days ago · 33 km deep · 95 km away
  4. 5.075 km E of ‘Ohonua, Tonga · 18732 days ago · 33 km deep · 49 km away

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000bzz. Read Thu, Oct 1, 2026, 7:36 PM UTC.