M5.0 earthquake 112 km SE of Pangai, Tonga
A magnitude 5.0 earthquake struck 112 km SE of Pangai, Tonga on Wed, Jul 4, 2018, 10:52 PM GMT+13 (09:52 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
- 5.0 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-07-04 09:52:17 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 20.396° S, 173.467° 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 |
|---|---|---|---|
| 5.0 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.036 · 247 stations |
| 5.11 | 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 8.3 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 62°
- Stations used
- 101
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.0 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.9104 km SSE of Pangai, Tonga · 3010 days ago · 10 km deep · 43 km away
- 5.4118 km ENE of ‘Ohonua, Tonga · 2960 days ago · 10 km deep · 71 km away
- 4.4111 km SSE of Pangai, Tonga · 2960 days ago · 10 km deep · 45 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000fwq0 (also filed as iscgem612247800). Read Sat, Oct 3, 2026, 12:07 AM UTC.