M4.6 earthquake 161 km E of Neiafu, Tonga
A magnitude 4.6 earthquake struck 161 km E of Neiafu, Tonga on Sun, Mar 3, 2019, 6:40 PM GMT-11 (05:40 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.3 191 km NE of Neiafu, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 2019-03-04 05:40:49 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 18.429° S, 172.468° 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 6.4 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- Operator assigned
- Station coverage gap
- 96°
- Stations used
- 19
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.5134 km E of Neiafu, Tonga · 2760 days ago · 10 km deep · 39 km away
- 4.6205 km E of Neiafu, Tonga · 2757 days ago · 10 km deep · 43 km away
- 5.3191 km NE of Neiafu, Tonga · 2749 days ago · 10 km deep · 82 km away · felt by 1
- 4.4112 km NE of Neiafu, Tonga · 2742 days ago · 10 km deep · 89 km away
- 4.8168 km E of Neiafu, Tonga · 2728 days ago · 10 km deep · 8 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000jev4. Read Mon, Sep 28, 2026, 8:57 PM UTC.