M4.5 earthquake 200 km NE of Neiafu, Tonga
A magnitude 4.5 earthquake struck 200 km NE of Neiafu, Tonga on Tue, Jul 16, 2019, 1:29 PM GMT-12 (01:29 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.7 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
- 2019-07-17 01:29:51 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.513° S, 172.512° 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 9.3 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- Operator assigned
- Station coverage gap
- 68°
- Stations used
- 16
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us60004ved. Read Wed, Sep 30, 2026, 4:52 AM UTC.