M5.0 earthquake 115 km ENE of Neiafu, Tonga
A magnitude 5.0 earthquake struck 115 km ENE of Neiafu, Tonga on Sat, Oct 10, 1987, 12:41 PM GMT+13 (23:41 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 166 km NE of Neiafu, Tonga. This one was a foreshock.
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
- 1987-10-09 23:41:55 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 18.359° S, 172.929° 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 2.0 and up: 2 in the 60 days after this one and 6 in the 30 days before it.
After
- 5.2166 km NE of Neiafu, Tonga · 14188 days ago · 33 km deep · 86 km away
- 5.5150 km NE of Neiafu, Tonga · 14176 days ago · 29 km deep · 66 km away
Before
- 4.4195 km E of Neiafu, Tonga · 14231 days ago · 33 km deep · 82 km away
- 5.1180 km ENE of Neiafu, Tonga · 14231 days ago · 33 km deep · 71 km away
- 5.0137 km NE of Neiafu, Tonga · 14231 days ago · 33 km deep · 61 km away
- 4.9182 km ENE of Neiafu, Tonga · 14231 days ago · 33 km deep · 79 km away
- 4.7195 km ENE of Neiafu, Tonga · 14231 days ago · 33 km deep · 80 km away
- 7.3201 km ENE of Neiafu, Tonga · 14232 days ago · 16 km deep · 88 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0003949. Read Tue, Sep 22, 2026, 5:22 PM UTC.