M4.5 earthquake 201 km SSE of ‘Ohonua, Tonga
A magnitude 4.5 earthquake struck 201 km SSE of ‘Ohonua, Tonga on Sat, Oct 30, 2021, 12:19 PM GMT+13 (23:19 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
- 2021-10-29 23:19:17 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 22.971° S, 174.089° 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 11.8 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- Operator assigned
- Station coverage gap
- 227°, poorly surrounded by stations
- Stations used
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.5137 km SSE of ‘Ohonua, Tonga · 1795 days ago · 10 km deep · 65 km away
- 4.7246 km SSE of ‘Ohonua, Tonga · 1794 days ago · 10 km deep · 71 km away
- 4.7148 km S of ‘Ohonua, Tonga · 1794 days ago · 10 km deep · 80 km away
- 4.2148 km SSE of ‘Ohonua, Tonga · 1787 days ago · 10 km deep · 63 km away
- 5.2152 km SSE of ‘Ohonua, Tonga · 1777 days ago · 10 km deep · 54 km away
- 4.6229 km S of ‘Ohonua, Tonga · 1762 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 us7000fr6u. Read Wed, Sep 30, 2026, 7:36 AM UTC.