Earthquake south of Tonga (5.5 mb) (2025-08-16 22:52:10 UTC)
A 5.5 magnitude earthquake struck on south of Tonga, at 2025-08-16 22:52:10 UTC. Reviewed by USGS seismologists, this minor quake occurred at a magnitude type of mb and was felt in surrounding areas. Stay updated on earthquake activity in south of Tonga
Recommendation
Very Strong Earthquake
Very Strong Earthquake
Action
Severe shaking, potential for significant damage.
Suggestion
Indoors: Drop, Cover, and Hold On. Avoid elevators, as power outages may occur. Outdoors: Stay in the open. Be alert for aftershocks.
Magnitudo (mb)
5.5
Confirmed
USGS
Summary
- Intensity: 0
- Tsunami: 0
- ID: usgs_us6000r1n6
Nearest Places
- Horizon Deep / 186.63 km
- Monowai Seamount / 187.01 km
- Osbourn Seamount / 188.52 km
- Pelorus Reef / 204.2 km
- Pelorus Reef / 204.2 km
Comment
Latest Earthquake
1.9
6 km WSW of Anza, CA
Time:
Depth: 4.88 km
Source: USGS (Automatic)
Time:
Depth: 4.88 km
Source: USGS (Automatic)
0.7
3 km NNW of The Geysers, CA
Time:
Depth: 0.20 km
Source: USGS (Automatic)
Time:
Depth: 0.20 km
Source: USGS (Automatic)
1.4
3 km W of Aguanga, CA
Time:
Depth: 5.31 km
Source: USGS (Automatic)
Time:
Depth: 5.31 km
Source: USGS (Automatic)
2.5
Sulawesi, Indonesia
Time:
Depth: 10.00 km
Source: BMKG (Automatic)
Time:
Depth: 10.00 km
Source: BMKG (Automatic)
1.3
4 km NNW of Redwood Valley, CA
Time:
Depth: 6.38 km
Source: USGS (Automatic)
Time:
Depth: 6.38 km
Source: USGS (Automatic)