M5.4 earthquake 294 km W of Haveluloto, Tonga
A magnitude 5.4 earthquake struck 294 km W of Haveluloto, Tonga on Fri, Nov 22, 1985, 7:44 AM GMT+13 (18:44 UTC), 526 km (327 mi) below the surface.
A larger quake followed: M5.7 Fiji region. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (mw), moderate
- Local time
- UTC
- 1985-11-21 18:44:25 UTC
- Depth
- 525.5 km (326.5 mi), deep
- Epicenter
- 20.803° S, 178.018° 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 5 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.8Fiji region · 14905 days ago · 628 km deep · 32 km away
- 5.1Fiji region · 14901 days ago · 565 km deep · 38 km away
- 4.9Fiji region · 14900 days ago · 606 km deep · 46 km away
- 4.4Fiji region · 14868 days ago · 585 km deep · 85 km away
- 5.7Fiji region · 14868 days ago · 520 km deep · 76 km away
Before
- 4.9Fiji region · 14928 days ago · 619 km deep · 32 km away
- 4.9Fiji region · 14939 days ago · 422 km deep · 80 km away
- 4.5261 km WNW of Haveluloto, Tonga · 14941 days ago · 500 km deep · 46 km away
- 4.9284 km WNW of Haveluloto, Tonga · 14943 days ago · 550 km deep · 26 km away
- 4.4Fiji region · 14943 days ago · 540 km deep · 89 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002n19 (also filed as gcmtb112185b, gcmt19851121184425, iscgem511420). Read Tue, Sep 22, 2026, 10:24 AM UTC.