M5.2 earthquake 202 km SW of Vaini, Tonga
A magnitude 5.2 earthquake struck 202 km SW of Vaini, Tonga on Mon, Jun 25, 2018, 4:09 AM GMT+13 (15:09 UTC), 78 km (48 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.2 (Mww, W-phase moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-06-24 15:09:34 UTC
- Depth
- 77.5 km (48.2 mi), intermediate-depth
- Epicenter
- 22.655° S, 176.349° 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 |
|---|---|---|---|
| 5.2 | Mww, W-phase moment | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.062 · 25 stations |
| 5.19 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
Did you feel it?
No one has reported feeling this quake to the USGS.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Strike-slip
- Moment magnitude
- 5.2 Mww
- Nodal plane 1
- Strike 76°, dip 43°, rake 178°
- Nodal plane 2
- Strike 167°, dip 89°, rake 47°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 9.3 km horizontally, 4.0 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 35°
- Stations used
- 64
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.2 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000f0bn (also filed as iscgem615000807). Read Thu, Oct 1, 2026, 10:36 AM UTC.