M5.0 earthquake 78 km WNW of Pangai, Tonga
A magnitude 5.0 earthquake struck 78 km WNW of Pangai, Tonga on Fri, Jul 20, 1973, 10:22 AM GMT+13 (21:22 UTC), 133 km (83 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb), moderate
- Local time
- UTC
- 1973-07-19 21:22:16 UTC
- Depth
- 133.0 km (82.6 mi), intermediate-depth
- Epicenter
- 19.616° S, 175.074° 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
- CONSTRAINED_BY_DEPTH_PHASES
- Stations used
- 28
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.0 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00002s5. Read Tue, Sep 22, 2026, 7:54 AM UTC.