M4.8 earthquake 141 km NNW of Neiafu, Tonga
A magnitude 4.8 earthquake struck 141 km NNW of Neiafu, Tonga on Thu, May 27, 2021, 6:32 AM GMT-12 (18:32 UTC), 105 km (65 mi) below the surface.
A larger quake followed: M5.2 43 km N 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
- 4.8 (mb), light
- Local time
- UTC
- 2021-05-27 18:32:00 UTC
- Depth
- 104.6 km (65.0 mi), intermediate-depth
- Epicenter
- 17.447° S, 174.424° 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 10.1 km horizontally, 7.6 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 56°
- Stations used
- 35
Nearby
Within 100 km, magnitude 1.8 and up: 5 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.5Tonga · 1948 days ago · 10 km deep · 100 km away
- 4.5138 km S of Hihifo, Tonga · 1918 days ago · 10 km deep · 85 km away
- 4.1119 km NNW of Neiafu, Tonga · 1905 days ago · 10 km deep · 39 km away
- 5.243 km N of Neiafu, Tonga · 1904 days ago · 10 km deep · 99 km away · felt by 5
- 4.5187 km NW of Neiafu, Tonga · 1896 days ago · 261 km deep · 68 km away
Before
- 5.7147 km NW of Neiafu, Tonga · 1953 days ago · 201 km deep · 43 km away
- 4.674 km NW of Neiafu, Tonga · 1957 days ago · 80 km deep · 73 km away
- 4.1169 km NW of Neiafu, Tonga · 1966 days ago · 210 km deep · 92 km away
- 5.1103 km NNE of Neiafu, Tonga · 1969 days ago · 10 km deep · 80 km away · felt by 1
- 4.3111 km SSW of Hihifo, Tonga · 1975 days ago · 167 km deep · 67 km away
- 4.588 km SW of Hihifo, Tonga · 1976 days ago · 170 km deep · 98 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000ef8x. Read Wed, Sep 30, 2026, 6:11 AM UTC.