M5.4 earthquake 123 km NE of Hihifo, Tonga
A magnitude 5.4 earthquake struck 123 km NE of Hihifo, Tonga on Sat, Jun 24, 2023, 8:06 AM GMT+13 (19:06 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M6.1 105 km NE of Hihifo, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.4 (Mww, W-phase moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-06-23 19:06:16 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 15.157° S, 172.988° W
- Region
- Tonga
- Felt reports
- 3
- Strongest shaking
- IV, light shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Peak ground acceleration
- 1.1% of gravity
- Peak ground velocity
- 0.8 cm/s
- Map
- Automatic
Did you feel it?
3 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
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% |
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
- 5.4 Mww
- Nodal plane 1
- Strike 161°, dip 17°, rake -172°
- Nodal plane 2
- Strike 64°, dip 88°, rake -73°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 7.5 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From modeling of broad-band P waveforms
- Station coverage gap
- 42°
- Stations used
- 135
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.4 and up: 6 in the 60 days after this one and 9 in the 30 days before it.
After
- 4.277 km N of Hihifo, Tonga · 1184 days ago · 35 km deep · 94 km away
- 4.563 km NNE of Hihifo, Tonga · 1179 days ago · 35 km deep · 68 km away
- 6.1105 km NE of Hihifo, Tonga · 1152 days ago · 42 km deep · 22 km away · felt by 16
- 4.4120 km NNE of Hihifo, Tonga · 1152 days ago · 37 km deep · 50 km away
- 4.5141 km NE of Hihifo, Tonga · 1141 days ago · 10 km deep · 32 km away
- 4.4118 km NE of Hihifo, Tonga · 1140 days ago · 10 km deep · 17 km away
Before
- 4.534 km NE of Hihifo, Tonga · 1199 days ago · 21 km deep · 90 km away
- 4.4117 km NE of Hihifo, Tonga · 1201 days ago · 10 km deep · 10 km away
- 5.7126 km NNE of Hihifo, Tonga · 1204 days ago · 8 km deep · 39 km away
- 4.5138 km NE of Hihifo, Tonga · 1204 days ago · 10 km deep · 22 km away
- 4.558 km N of Hihifo, Tonga · 1208 days ago · 79 km deep · 85 km away
- 4.799 km NNE of Hihifo, Tonga · 1216 days ago · 10 km deep · 56 km away
- 5.3105 km NE of Hihifo, Tonga · 1218 days ago · 35 km deep · 21 km away
- 4.3102 km NE of Hihifo, Tonga · 1226 days ago · 18 km deep · 28 km away
- 4.3106 km NNE of Hihifo, Tonga · 1226 days ago · 10 km deep · 50 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000kap9. Read Sat, Oct 3, 2026, 5:23 PM UTC.