M4.5 earthquake 138 km SW of Vaini, Tonga
A magnitude 4.5 earthquake struck 138 km SW of Vaini, Tonga on Mon, Apr 1, 2019, 4:29 AM GMT+13 (15:29 UTC), 164 km (102 mi) below the surface.
A larger quake followed: M4.9 160 km SSW 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
- 4.5 (mb), light
- Local time
- UTC
- 2019-03-31 15:29:53 UTC
- Depth
- 164.2 km (102.0 mi), intermediate-depth
- Epicenter
- 22.058° S, 176.144° 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 7.7 km horizontally, 16.7 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 135°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.9160 km SSW of ‘Ohonua, Tonga · 2727 days ago · 35 km deep · 72 km away
- 4.4221 km SW of Vaini, Tonga · 2687 days ago · 167 km deep · 85 km away
- 4.5151 km SW of Vaini, Tonga · 2687 days ago · 109 km deep · 14 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000kcf5. Read Wed, Sep 30, 2026, 11:48 PM UTC.