M4.7 earthquake 147 km SSW of Hihifo, Tonga
A magnitude 4.7 earthquake struck 147 km SSW of Hihifo, Tonga on Sun, Sep 22, 2019, 9:28 AM GMT-12 (21:28 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M4.8 84 km SSW 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
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-09-22 21:28:43 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 17.158° S, 174.395° 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 15.2 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- Operator assigned
- Station coverage gap
- 65°
- Stations used
- 37
Nearby
Within 100 km, magnitude 1.7 and up: 7 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.460 km SW of Hihifo, Tonga · 2564 days ago · 72 km deep · 89 km away
- 4.573 km SW of Hihifo, Tonga · 2563 days ago · 113 km deep · 90 km away
- 4.884 km SSW of Hihifo, Tonga · 2554 days ago · 87 km deep · 68 km away
- 4.480 km N of Neiafu, Tonga · 2551 days ago · 160 km deep · 94 km away
- 4.6195 km SW of Hihifo, Tonga · 2546 days ago · 146 km deep · 74 km away
- 4.288 km S of Hihifo, Tonga · 2523 days ago · 106 km deep · 66 km away
- 4.3136 km SW of Hihifo, Tonga · 2522 days ago · 255 km deep · 58 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70005nym. Read Sat, Oct 3, 2026, 2:28 PM UTC.