M4.9 earthquake 112 km WSW of Pangai, Tonga
A magnitude 4.9 earthquake struck 112 km WSW of Pangai, Tonga on Sun, Aug 16, 1987, 2:49 AM GMT+13 (13:49 UTC), 195 km (121 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-08-15 13:49:11 UTC
- Depth
- 195.4 km (121.4 mi), intermediate-depth
- Epicenter
- 20.019° S, 175.406° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00037jn. Read Fri, Oct 2, 2026, 4:21 AM UTC.