M5.4 earthquake 156 km NE of Neiafu, Tonga
A magnitude 5.4 earthquake struck 156 km NE of Neiafu, Tonga on Fri, Jul 15, 2022, 3:25 PM GMT-12 (03:25 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (Mww, W-phase moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2022-07-16 03:25:48 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.651° S, 172.933° W
- Region
- Tonga
- Strongest shaking
- III, weak 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 |
|---|---|---|---|
| 5.4 | Mww, W-phase moment | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.089 · 12 stations |
| 5.7 | Mi | NOAA Pacific Tsunami Warning Center | Reviewed · 11 stations |
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- III, weak shaking
- Peak ground acceleration
- 0.3% of gravity
- Peak ground velocity
- 0.3 cm/s
- 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 12.2 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- Operator assigned
- Station coverage gap
- 42°
- Stations used
- 75
Nearby
Within 100 km, magnitude 2.4 and up: 3 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.7Tonga · 1534 days ago · 29 km deep · 59 km away
- 4.6193 km NE of Neiafu, Tonga · 1515 days ago · 10 km deep · 38 km away
- 4.9147 km SE of Hihifo, Tonga · 1510 days ago · 10 km deep · 98 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000i2y7 (also filed as pt22197050). Read Sun, Oct 4, 2026, 2:56 AM UTC.