M4.5 earthquake 120 km SSW of Hihifo, Tonga
A magnitude 4.5 earthquake struck 120 km SSW of Hihifo, Tonga on Mon, Oct 31, 2016, 2:34 AM GMT-12 (14:34 UTC), 168 km (104 mi) below the surface.
A larger quake followed: M5.0 146 km S 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-10-31 14:34:48 UTC
- Depth
- 167.8 km (104.3 mi), intermediate-depth
- Epicenter
- 16.985° S, 174.171° 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 9.6 km horizontally, 7.7 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 80°
- Stations used
- 82
Nearby
Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.392 km SSE of Hihifo, Tonga · 3620 days ago · 53 km deep · 79 km away
- 4.1166 km NW of Neiafu, Tonga · 3617 days ago · 247 km deep · 88 km away
- 4.7Tonga · 3611 days ago · 106 km deep · 50 km away
- 4.4128 km N of Neiafu, Tonga · 3606 days ago · 10 km deep · 59 km away
- 4.4134 km S of Hihifo, Tonga · 3606 days ago · 10 km deep · 47 km away
- 4.4150 km NNW of Neiafu, Tonga · 3606 days ago · 84 km deep · 42 km away
- 4.4148 km SW of Hihifo, Tonga · 3604 days ago · 271 km deep · 60 km away
- 4.5108 km S of Hihifo, Tonga · 3600 days ago · 200 km deep · 23 km away
- 4.7114 km SSW of Hihifo, Tonga · 3590 days ago · 128 km deep · 12 km away
- 5.0146 km S of Hihifo, Tonga · 3590 days ago · 75 km deep · 36 km away
- 4.574 km S of Hihifo, Tonga · 3589 days ago · 81 km deep · 62 km away
- 4.6151 km SSW of Hihifo, Tonga · 3587 days ago · 166 km deep · 37 km away
- 4.731 km SW of Hihifo, Tonga · 3585 days ago · 10 km deep · 92 km away
- 4.6126 km S of Hihifo, Tonga · 3579 days ago · 40 km deep · 53 km away
Before
- 4.5148 km SSW of Hihifo, Tonga · 3625 days ago · 109 km deep · 29 km away
- 4.985 km SSW of Hihifo, Tonga · 3630 days ago · 110 km deep · 36 km away
- 4.573 km S of Hihifo, Tonga · 3634 days ago · 54 km deep · 65 km away
- 4.6124 km WSW of Hihifo, Tonga · 3646 days ago · 23 km deep · 94 km away
- 4.3123 km SW of Hihifo, Tonga · 3652 days ago · 176 km deep · 51 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10007460. Read Sat, Oct 3, 2026, 5:04 PM UTC.