Tonga earthquakes

M5.1 earthquake 103 km NNE of Neiafu, Tonga

A magnitude 5.1 earthquake struck 103 km NNE of Neiafu, Tonga on Sun, May 9, 2021, 1:59 PM GMT-12 (01:59 UTC), 10 km (6 mi) below the surface.

More in Tonga

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
5.1 (mb), moderate
Local time
UTC
2021-05-10 01:59:13 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
17.748° S, 173.742° W
Region
Tonga
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 10.7 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.04
Depth from
Operator assigned
Station coverage gap
46°
Stations used
73

Nearby

Within 100 km, magnitude 2.1 and up: 3 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.674 km NW of Neiafu, Tonga · 1957 days ago · 80 km deep · 80 km away
  2. 4.8141 km NNW of Neiafu, Tonga · 1951 days ago · 105 km deep · 80 km away
  3. 4.5138 km S of Hihifo, Tonga · 1918 days ago · 10 km deep · 61 km away

Before

  1. 4.5113 km NE of Neiafu, Tonga · 1972 days ago · 10 km deep · 44 km away
  2. 5.196 km ENE of Neiafu, Tonga · 1976 days ago · 10 km deep · 82 km away
  3. 4.857 km N of Neiafu, Tonga · 1982 days ago · 10 km deep · 48 km away
  4. 4.6140 km NE of Neiafu, Tonga · 1986 days ago · 10 km deep · 94 km away

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e1ph (also filed as iscgem620357635). Read Wed, Sep 30, 2026, 12:42 AM UTC.