M4.5 earthquake 126 km S of Hihifo, Tonga
A magnitude 4.5 earthquake struck 126 km S of Hihifo, Tonga on Wed, May 1, 2019, 5:46 AM GMT-12 (17:46 UTC), 91 km (56 mi) below the surface.
A larger quake followed: M5.5 112 km NNE 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
- 4.5 (mb), light
- Local time
- UTC
- 2019-05-01 17:46:16 UTC
- Depth
- 90.6 km (56.3 mi), intermediate-depth
- Epicenter
- 17.080° S, 173.976° W
- Region
- Tonga
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
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 10.3 km horizontally, 7.6 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 67°
- Stations used
- 46
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.459 km SW of Hihifo, Tonga · 2704 days ago · 160 km deep · 83 km away
- 4.7134 km NNE of Neiafu, Tonga · 2702 days ago · 90 km deep · 97 km away
- 4.6119 km NNE of Neiafu, Tonga · 2701 days ago · 35 km deep · 66 km away
- 5.2121 km S of Hihifo, Tonga · 2700 days ago · 94 km deep · 6 km away
- 4.6112 km SSW of Hihifo, Tonga · 2692 days ago · 51 km deep · 25 km away
- 4.490 km S of Hihifo, Tonga · 2692 days ago · 118 km deep · 36 km away
- 4.4142 km NNE of Neiafu, Tonga · 2662 days ago · 35 km deep · 66 km away
- 5.5112 km NNE of Neiafu, Tonga · 2659 days ago · 48 km deep · 71 km away
- 4.632 km S of Hihifo, Tonga · 2659 days ago · 146 km deep · 96 km away
- 4.5148 km S of Hihifo, Tonga · 2654 days ago · 41 km deep · 23 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70003f8c. Read Wed, Sep 30, 2026, 4:09 AM UTC.