M4.9 earthquake Tonga region
A magnitude 4.9 earthquake struck in the Tonga region on Fri, Jan 11, 2019, 2:45 PM GMT+13 (01:45 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M5.3 south of Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 2019-01-11 01:45:28 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 23.988° S, 175.822° 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 12.3 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- Operator assigned
- Station coverage gap
- 69°
- Stations used
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.3south of Tonga · 2795 days ago · 10 km deep · 50 km away
- 5.1south of Tonga · 2786 days ago · 10 km deep · 47 km away
- 4.6south of the Fiji Islands · 2779 days ago · 70 km deep · 56 km away
- 4.6south of Tonga · 2776 days ago · 10 km deep · 12 km away
- 4.7273 km S of ‘Ohonua, Tonga · 2776 days ago · 10 km deep · 71 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000j8vm. Read Wed, Sep 30, 2026, 8:33 PM UTC.