M4.3 earthquake Tonga
A magnitude 4.3 earthquake struck in Tonga on Sun, Apr 28, 2019, 12:37 PM GMT-12 (00:37 UTC), 183 km (114 mi) below the surface.
A larger quake followed: M5.5 112 km NNE 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
- 4.3 (mb), light
- Local time
- UTC
- 2019-04-29 00:37:08 UTC
- Depth
- 183.2 km (113.9 mi), intermediate-depth
- Epicenter
- 17.262° S, 174.421° 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 8.3 km horizontally, 6.8 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 70°
- Stations used
- 100
Nearby
Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4150 km NW of Neiafu, Tonga · 2710 days ago · 230 km deep · 67 km away
- 4.5126 km S of Hihifo, Tonga · 2708 days ago · 91 km deep · 51 km away
- 4.6119 km NNE of Neiafu, Tonga · 2701 days ago · 35 km deep · 87 km away
- 5.2121 km S of Hihifo, Tonga · 2700 days ago · 94 km deep · 51 km away
- 4.3122 km NW of Neiafu, Tonga · 2698 days ago · 191 km deep · 66 km away
- 4.6112 km SSW of Hihifo, Tonga · 2692 days ago · 51 km deep · 49 km away
- 4.490 km S of Hihifo, Tonga · 2692 days ago · 118 km deep · 79 km away
- 4.5173 km NW of Neiafu, Tonga · 2675 days ago · 207 km deep · 88 km away
- 4.1169 km NW of Neiafu, Tonga · 2660 days ago · 247 km deep · 69 km away
- 5.5112 km NNE of Neiafu, Tonga · 2659 days ago · 48 km deep · 87 km away
- 4.5148 km S of Hihifo, Tonga · 2654 days ago · 41 km deep · 51 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70003dmv. Read Wed, Sep 30, 2026, 12:42 AM UTC.