M7.2 earthquake 19 km ENE of Hihifo, Tonga
A magnitude 7.2 earthquake struck 19 km ENE of Hihifo, Tonga on Sun, Oct 14, 1984, 11:21 PM GMT-11 (10:21 UTC), 128 km (80 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 7.2 (mw), major
- Local time
- UTC
- 1984-10-15 10:21:07 UTC
- Depth
- 128.4 km (79.8 mi), intermediate-depth
- Epicenter
- 15.860° S, 173.643° 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 2.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 6.018 km WNW of Hihifo, Tonga · 15313 days ago · 121 km deep · 33 km away
- 4.459 km S of Hihifo, Tonga · 15309 days ago · 33 km deep · 71 km away
- 4.659 km WNW of Hihifo, Tonga · 15302 days ago · 122 km deep · 71 km away
- 4.377 km NE of Hihifo, Tonga · 15288 days ago · 33 km deep · 59 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000286c (also filed as gcmtc101584a, gcmt19841015102107, iscgem541351). Read Tue, Sep 22, 2026, 12:12 PM UTC.