M4.4 earthquake 285 km NW of Nuku‘alofa, Tonga
A magnitude 4.4 earthquake struck 285 km NW of Nuku‘alofa, Tonga on Tue, Aug 25, 2015, 4:17 AM GMT+13 (15:17 UTC), 542 km (337 mi) below the surface.
A larger quake followed: M5.4 205 km NW of Nuku‘alofa, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-08-24 15:17:56 UTC
- Depth
- 541.6 km (336.5 mi), deep
- Epicenter
- 19.410° S, 177.224° 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 12.7 km horizontally, 7.7 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 101°
- Stations used
- 46
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 3 in the 30 days before it.
After
- 4.7Fiji region · 4057 days ago · 591 km deep · 100 km away
- 5.4205 km NW of Nuku‘alofa, Tonga · 4055 days ago · 10 km deep · 88 km away
- 4.1Fiji region · 4032 days ago · 566 km deep · 31 km away
- 4.3Fiji region · 4031 days ago · 537 km deep · 69 km away
- 4.4Fiji region · 4030 days ago · 598 km deep · 62 km away
- 4.5Fiji region · 4025 days ago · 567 km deep · 35 km away
- 4.3256 km WNW of Haveluloto, Tonga · 4025 days ago · 502 km deep · 94 km away
- 4.4Fiji region · 4025 days ago · 587 km deep · 93 km away
- 4.2Fiji region · 4010 days ago · 543 km deep · 38 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20003har. Read Sat, Oct 3, 2026, 4:09 PM UTC.