M4.9 earthquake 73 km SW of Hihifo, Tonga
A magnitude 4.9 earthquake struck 73 km SW of Hihifo, Tonga on Sat, Jan 13, 2018, 3:00 AM GMT+14 (13:00 UTC), 147 km (91 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-01-12 13:00:05 UTC
- Depth
- 147.2 km (91.4 mi), intermediate-depth
- Epicenter
- 16.427° S, 174.284° W
- Region
- Tonga
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 4.9 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.061 · 85 stations |
| 5.06 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
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 10.0 km horizontally, 7.4 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 63°
- Stations used
- 106
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 4 in the 60 days after this one and 7 in the 30 days before it.
After
- 4.2119 km W of Hihifo, Tonga · 3180 days ago · 279 km deep · 71 km away
- 4.3Tonga · 3175 days ago · 117 km deep · 62 km away
- 4.7160 km NNW of Neiafu, Tonga · 3165 days ago · 35 km deep · 96 km away
- 4.399 km WNW of Hihifo, Tonga · 3143 days ago · 268 km deep · 92 km away
Before
- 4.222 km NW of Hihifo, Tonga · 3197 days ago · 129 km deep · 79 km away
- 4.443 km NW of Hihifo, Tonga · 3202 days ago · 118 km deep · 88 km away
- 4.520 km WSW of Hihifo, Tonga · 3206 days ago · 127 km deep · 56 km away
- 4.2150 km SSW of Hihifo, Tonga · 3206 days ago · 131 km deep · 98 km away
- 4.648 km SSE of Hihifo, Tonga · 3212 days ago · 10 km deep · 69 km away
- 4.6129 km S of Hihifo, Tonga · 3213 days ago · 90 km deep · 84 km away
- 4.541 km W of Hihifo, Tonga · 3214 days ago · 137 km deep · 49 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000ciun (also filed as iscgem614999819). Read Fri, Oct 2, 2026, 4:38 AM UTC.