M4.9 earthquake 157 km W of Pangai, Tonga
A magnitude 4.9 earthquake struck 157 km W of Pangai, Tonga on Wed, Sep 5, 2018, 1:16 AM GMT+13 (12:16 UTC), 10 km (6 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
- 2018-09-04 12:16:26 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 19.704° S, 175.850° 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 · ±0.04 · 195 stations |
| 5.14 | 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 9.6 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 74°
- Stations used
- 161
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 4 in the 30 days before it.
After
- 4.4100 km WNW of Pangai, Tonga · 2944 days ago · 207 km deep · 65 km away
- 4.9144 km NW of Pangai, Tonga · 2906 days ago · 10 km deep · 90 km away
- 4.1190 km WNW of Pangai, Tonga · 2903 days ago · 238 km deep · 47 km away
- 4.5168 km NNW of Nuku‘alofa, Tonga · 2897 days ago · 10 km deep · 24 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000h843 (also filed as iscgem612690041). Read Fri, Oct 2, 2026, 4:51 AM UTC.