M4.5 earthquake 49 km SE of Hihifo, Tonga
A magnitude 4.5 earthquake struck 49 km SE of Hihifo, Tonga on Tue, Sep 17, 2019, 4:22 AM GMT+13 (15:22 UTC), 37 km (23 mi) below the surface.
A larger quake followed: M5.8 103 km E of Hihifo, 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
- 2019-09-16 15:22:29 UTC
- Depth
- 37.5 km (23.3 mi), shallow
- Epicenter
- 16.275° S, 173.472° 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 10.5 km horizontally, 6.7 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- From location
- Station coverage gap
- 110°
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.977 km SW of Hihifo, Tonga · 2570 days ago · 193 km deep · 92 km away
- 4.662 km S of Hihifo, Tonga · 2570 days ago · 42 km deep · 51 km away
- 5.690 km ENE of Hihifo, Tonga · 2565 days ago · 10 km deep · 91 km away
- 4.460 km SW of Hihifo, Tonga · 2561 days ago · 72 km deep · 71 km away
- 4.573 km SW of Hihifo, Tonga · 2560 days ago · 113 km deep · 94 km away
- 4.884 km SSW of Hihifo, Tonga · 2551 days ago · 87 km deep · 71 km away
- 4.288 km S of Hihifo, Tonga · 2520 days ago · 106 km deep · 72 km away
- 5.8103 km E of Hihifo, Tonga · 2518 days ago · 43 km deep · 86 km away · felt by 11
- 5.280 km ENE of Hihifo, Tonga · 2518 days ago · 10 km deep · 78 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us60005mvk. Read Wed, Sep 30, 2026, 8:16 AM UTC.