M4.9 earthquake 96 km SE of Pangai, Tonga
A magnitude 4.9 earthquake struck 96 km SE of Pangai, Tonga on Tue, Jul 3, 2018, 4:00 PM GMT+13 (03:00 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.4 118 km ENE of ‘Ohonua, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-07-03 03:00:01 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 20.352° S, 173.633° 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 · ±0.044 · 160 stations |
| 5.33 | 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 10.9 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 115°
- Stations used
- 172
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.0112 km SE of Pangai, Tonga · 3013 days ago · 10 km deep · 18 km away
- 4.9104 km SSE of Pangai, Tonga · 3010 days ago · 10 km deep · 34 km away
- 4.947 km NE of Pangai, Tonga · 2960 days ago · 40 km deep · 99 km away
- 5.4118 km ENE of ‘Ohonua, Tonga · 2960 days ago · 10 km deep · 66 km away
- 4.4111 km SSE of Pangai, Tonga · 2959 days ago · 10 km deep · 39 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000fve0 (also filed as iscgem616641114). Read Fri, Oct 2, 2026, 9:32 PM UTC.