M5.5 earthquake 181 km W of Neiafu, Tonga
A magnitude 5.5 earthquake struck 181 km W of Neiafu, Tonga on Tue, Nov 5, 2019, 11:46 AM GMT+13 (22:46 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M6.2 147 km W of Neiafu, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2019-11-04 22:46:10 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 18.597° S, 175.701° W
- Region
- Tonga
- Strongest shaking
- I, not felt shaking
- PAGER alert
- Green
- 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 |
|---|---|---|---|
| 5.5 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.07 · 70 stations |
| 5.5 | Mw, moment | ISC-GEM global catalog | Final · ±0.24 |
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
Estimated impact
The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.
- Alert level
- Green: little or no damage or loss of life expected
| Range | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
| Range, million USD | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 12.8 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- Operator assigned
- Station coverage gap
- 88°
- Stations used
- 55
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.9137 km W of Neiafu, Tonga · 2524 days ago · 10 km deep · 44 km away
- 5.5146 km W of Neiafu, Tonga · 2517 days ago · 10 km deep · 36 km away
- 6.2147 km W of Neiafu, Tonga · 2517 days ago · 10 km deep · 46 km away · felt by 6
- 4.3118 km NW of Pangai, Tonga · 2499 days ago · 238 km deep · 78 km away
- 4.3174 km W of Neiafu, Tonga · 2489 days ago · 214 km deep · 8 km away
- 4.4133 km WNW of Pangai, Tonga · 2481 days ago · 120 km deep · 72 km away
- 4.6120 km WNW of Neiafu, Tonga · 2480 days ago · 139 km deep · 96 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000635n (also filed as iscgem616747940). Read Sat, Oct 3, 2026, 6:15 AM UTC.