M4.9 earthquake 150 km NW of Neiafu, Tonga
A magnitude 4.9 earthquake struck 150 km NW of Neiafu, Tonga on Fri, Jul 3, 2020, 3:59 PM GMT+13 (02:59 UTC), 193 km (120 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
- 2020-07-03 02:59:58 UTC
- Depth
- 192.6 km (119.7 mi), intermediate-depth
- Epicenter
- 17.836° S, 175.125° W
- Region
- Tonga
- Felt reports
- 1
- 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 · ±0.079 · 51 stations |
| 5.27 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 9.6 km horizontally, 5.7 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- From location
- Station coverage gap
- 48°
- Stations used
- 62
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 2 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.3158 km NW of Neiafu, Tonga · 2268 days ago · 233 km deep · 24 km away
- 4.3180 km NW of Neiafu, Tonga · 2265 days ago · 262 km deep · 56 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000ah2x (also filed as iscgem618654730). Read Thu, Oct 1, 2026, 5:01 PM UTC.