M4.5 earthquake 139 km SSE of ‘Ohonua, Tonga
A magnitude 4.5 earthquake struck 139 km SSE of ‘Ohonua, Tonga on Mon, Oct 25, 2021, 12:05 PM GMT+13 (23:05 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.2 152 km SSE 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
- 4.5 (mb), light
- Local time
- UTC
- 2021-10-24 23:05:17 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 22.543° S, 174.582° 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.
- Location uncertainty
- About 5.9 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- Operator assigned
- Station coverage gap
- 93°
- Stations used
- 24
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.0169 km S of ‘Ohonua, Tonga · 1798 days ago · 10 km deep · 50 km away
- 4.5201 km SSE of ‘Ohonua, Tonga · 1796 days ago · 10 km deep · 69 km away
- 4.5137 km SSE of ‘Ohonua, Tonga · 1795 days ago · 10 km deep · 20 km away
- 4.7148 km S of ‘Ohonua, Tonga · 1794 days ago · 10 km deep · 27 km away
- 4.8Tonga region · 1794 days ago · 10 km deep · 67 km away
- 4.2148 km SSE of ‘Ohonua, Tonga · 1787 days ago · 10 km deep · 10 km away
- 5.2152 km SSE of ‘Ohonua, Tonga · 1777 days ago · 10 km deep · 15 km away
- 4.6229 km S of ‘Ohonua, Tonga · 1762 days ago · 10 km deep · 97 km away
- 5.167 km SE of ‘Ohonua, Tonga · 1747 days ago · 10 km deep · 83 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000fprz. Read Wed, Sep 30, 2026, 4:48 AM UTC.