M4.5 earthquake 170 km ENE of Neiafu, Tonga
A magnitude 4.5 earthquake struck 170 km ENE of Neiafu, Tonga on Sun, Jan 19, 2020, 7:36 PM GMT-12 (07:36 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.6 171 km ENE 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
- 4.5 (mb), light
- Local time
- UTC
- 2020-01-20 07:36:53 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.930° S, 172.562° 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 11.3 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- Operator assigned
- Station coverage gap
- 101°
- Stations used
- 22
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 5 in the 30 days before it.
After
Before
- 4.6207 km ENE of Neiafu, Tonga · 2461 days ago · 10 km deep · 51 km away
- 4.4202 km E of Neiafu, Tonga · 2464 days ago · 10 km deep · 83 km away
- 4.9187 km E of Neiafu, Tonga · 2464 days ago · 10 km deep · 89 km away
- 5.4207 km NE of Neiafu, Tonga · 2465 days ago · 10 km deep · 56 km away
- 4.2187 km ENE of Neiafu, Tonga · 2467 days ago · 10 km deep · 53 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us60007ld9. Read Wed, Sep 30, 2026, 9:47 PM UTC.