M4.9 earthquake 117 km E of ‘Ohonua, Tonga
A magnitude 4.9 earthquake struck 117 km E of ‘Ohonua, Tonga on Wed, Sep 4, 2019, 1:53 AM GMT+13 (12:53 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.1 122 km E 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
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-09-03 12:53:28 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 21.278° S, 173.816° 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 10.1 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 98°
- Stations used
- 173
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.1117 km SSE of Pangai, Tonga · 2576 days ago · 10 km deep · 65 km away
- 4.484 km SSE of Pangai, Tonga · 2566 days ago · 10 km deep · 88 km away
- 4.483 km ENE of ‘Ohonua, Tonga · 2549 days ago · 10 km deep · 46 km away
- 5.1122 km E of ‘Ohonua, Tonga · 2545 days ago · 10 km deep · 16 km away
Before
- 5.1130 km E of ‘Ohonua, Tonga · 2596 days ago · 10 km deep · 20 km away · felt by 1
- 5.1125 km E of ‘Ohonua, Tonga · 2598 days ago · 10 km deep · 23 km away
- 5.3121 km ENE of ‘Ohonua, Tonga · 2611 days ago · 10 km deep · 24 km away
- 4.6121 km ESE of ‘Ohonua, Tonga · 2612 days ago · 10 km deep · 71 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70005bg1. Read Fri, Oct 2, 2026, 2:53 PM UTC.