M4.8 earthquake 89 km SE of ‘Ohonua, Tonga
A magnitude 4.8 earthquake struck 89 km SE of ‘Ohonua, Tonga on Fri, Mar 27, 1987, 11:31 AM GMT+13 (22:31 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.6 74 km ENE of ‘Ohonua, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-03-26 22:31:24 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 21.848° S, 174.283° 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.028 km ENE of ‘Ohonua, Tonga · 14435 days ago · 33 km deep · 80 km away
- 5.381 km E of ‘Ohonua, Tonga · 14431 days ago · 32 km deep · 61 km away
- 4.997 km E of ‘Ohonua, Tonga · 14407 days ago · 40 km deep · 46 km away
- 5.674 km ENE of ‘Ohonua, Tonga · 14382 days ago · 33 km deep · 74 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00033nz. Read Sat, Oct 3, 2026, 6:32 AM UTC.