Tonga earthquakes

M4.5 earthquake 46 km SSW of Hihifo, Tonga

A magnitude 4.5 earthquake struck 46 km SSW of Hihifo, Tonga on Fri, Sep 4, 2020, 3:49 AM GMT+13 (14:49 UTC), 59 km (36 mi) below the surface.

A larger quake followed: M4.7 70 km S of Hihifo, Tonga. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-09-03 14:49:16 UTC
Depth
58.6 km (36.4 mi), shallow
Epicenter
16.326° S, 174.006° 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 10.7 km horizontally, 7.1 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
70°
Stations used
34

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.485 km SE of Hihifo, Tonga · 2214 days ago · 79 km deep · 81 km away
  2. 4.4143 km SSW of Hihifo, Tonga · 2209 days ago · 131 km deep · 97 km away
  3. 4.377 km ESE of Hihifo, Tonga · 2206 days ago · 13 km deep · 99 km away
  4. 4.462 km SSW of Hihifo, Tonga · 2204 days ago · 77 km deep · 15 km away
  5. 4.4138 km SW of Hihifo, Tonga · 2202 days ago · 213 km deep · 93 km away
  6. 4.770 km S of Hihifo, Tonga · 2184 days ago · 49 km deep · 44 km away
  7. 4.5110 km WSW of Hihifo, Tonga · 2181 days ago · 10 km deep · 86 km away
  8. 4.1111 km SSE of Hihifo, Tonga · 2179 days ago · 76 km deep · 85 km away
  9. 4.665 km S of Hihifo, Tonga · 2174 days ago · 70 km deep · 37 km away
  10. 4.2106 km SSW of Hihifo, Tonga · 2170 days ago · 141 km deep · 62 km away

Before

  1. 4.570 km ESE of Hihifo, Tonga · 2232 days ago · 10 km deep · 90 km away
  2. 4.771 km ESE of Hihifo, Tonga · 2234 days ago · 10 km deep · 92 km away
  3. 4.831 km NNE of Hihifo, Tonga · 2243 days ago · 38 km deep · 79 km away · felt by 1
  4. 4.678 km SSW of Hihifo, Tonga · 2247 days ago · 81 km deep · 33 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000bh6n. Read Mon, Oct 5, 2026, 4:30 AM UTC.