M4.8 earthquake 167 km WNW of Pangai, Tonga
A magnitude 4.8 earthquake struck 167 km WNW of Pangai, Tonga on Mon, Jul 27, 2015, 3:31 PM GMT+13 (02:31 UTC), 226 km (140 mi) below the surface.
A larger quake followed: M5.4 212 km WNW of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2015-07-27 02:31:16 UTC
- Depth
- 225.5 km (140.1 mi), intermediate-depth
- Epicenter
- 19.071° S, 175.745° 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 |
|---|---|---|---|
| 4.8 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.05 · 122 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 9.9 km horizontally, 6.0 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 55°
- Stations used
- 105
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 8 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.4102 km W of Pangai, Tonga · 4080 days ago · 209 km deep · 91 km away
- 4.1152 km NW of Pangai, Tonga · 4079 days ago · 228 km deep · 38 km away
- 4.5131 km W of Pangai, Tonga · 4077 days ago · 230 km deep · 86 km away
- 4.9147 km WNW of Pangai, Tonga · 4076 days ago · 10 km deep · 54 km away
- 5.4212 km WNW of Pangai, Tonga · 4072 days ago · 10 km deep · 55 km away
- 4.4152 km W of Neiafu, Tonga · 4066 days ago · 203 km deep · 61 km away
- 4.394 km WNW of Pangai, Tonga · 4033 days ago · 186 km deep · 73 km away
- 4.4148 km W of Pangai, Tonga · 4033 days ago · 183 km deep · 79 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000309u (also filed as iscgem607508138). Read Sun, Oct 4, 2026, 9:01 PM UTC.