Tonga earthquakes

M4.6 earthquake 153 km NNE of Neiafu, Tonga

A magnitude 4.6 earthquake struck 153 km NNE of Neiafu, Tonga on Thu, Aug 27, 2020, 2:27 AM GMT-12 (14:27 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.8 148 km N of Neiafu, Tonga. This one was a foreshock.

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

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The earthquake

Magnitude
4.6 (mb), light
Local time
UTC
2020-08-27 14:27:11 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
17.339° S, 173.509° 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 8.8 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.16
Depth from
Operator assigned
Station coverage gap
83°
Stations used
22

Nearby

Within 100 km, magnitude 1.6 and up: 9 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.5145 km N of Neiafu, Tonga · 2215 days ago · 74 km deep · 52 km away
  2. 4.485 km SE of Hihifo, Tonga · 2210 days ago · 79 km deep · 91 km away
  3. 4.4143 km SSW of Hihifo, Tonga · 2205 days ago · 131 km deep · 85 km away
  4. 4.2144 km NE of Neiafu, Tonga · 2203 days ago · 31 km deep · 41 km away
  5. 4.770 km S of Hihifo, Tonga · 2179 days ago · 49 km deep · 86 km away
  6. 4.8148 km N of Neiafu, Tonga · 2177 days ago · 54 km deep · 37 km away
  7. 4.1111 km SSE of Hihifo, Tonga · 2175 days ago · 76 km deep · 47 km away
  8. 4.665 km S of Hihifo, Tonga · 2170 days ago · 70 km deep · 92 km away
  9. 4.2106 km SSW of Hihifo, Tonga · 2166 days ago · 141 km deep · 77 km away

Before

  1. 4.678 km SSW of Hihifo, Tonga · 2243 days ago · 81 km deep · 98 km away
  2. 4.5141 km SSW of Hihifo, Tonga · 2250 days ago · 151 km deep · 93 km away
  3. 5.2148 km N of Neiafu, Tonga · 2250 days ago · 92 km deep · 79 km away
  4. 5.0100 km SSE of Hihifo, Tonga · 2254 days ago · 13 km deep · 60 km away
  5. 4.3112 km SSW of Hihifo, Tonga · 2255 days ago · 135 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000bgfv. Read Thu, Oct 1, 2026, 1:35 AM UTC.