Tonga earthquakes

M4.1 earthquake 111 km SSE of Hihifo, Tonga

A magnitude 4.1 earthquake struck 111 km SSE of Hihifo, Tonga on Sat, Oct 17, 2020, 12:32 PM GMT+14 (22:32 UTC), 76 km (47 mi) below the surface.

A larger quake followed: M5.1 98 km SE of Hihifo, Tonga. This one was a foreshock.

Apia forecastMore in Tonga

Map

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

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The earthquake

Magnitude
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-10-16 22:32:46 UTC
Depth
76.1 km (47.3 mi), intermediate-depth
Epicenter
16.920° S, 173.499° 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, 7.0 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
67°
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: 15 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.665 km S of Hihifo, Tonga · 2172 days ago · 70 km deep · 49 km away
  2. 4.2106 km SSW of Hihifo, Tonga · 2167 days ago · 141 km deep · 59 km away
  3. 4.9133 km SSW of Hihifo, Tonga · 2151 days ago · 134 km deep · 73 km away
  4. 4.3109 km SSE of Hihifo, Tonga · 2151 days ago · 32 km deep · 29 km away
  5. 4.377 km SW of Hihifo, Tonga · 2149 days ago · 110 km deep · 91 km away
  6. 4.699 km SE of Hihifo, Tonga · 2145 days ago · 22 km deep · 59 km away
  7. 4.996 km SSE of Hihifo, Tonga · 2142 days ago · 84 km deep · 17 km away
  8. 4.7100 km SSE of Hihifo, Tonga · 2141 days ago · 83 km deep · 19 km away
  9. 4.478 km ESE of Hihifo, Tonga · 2137 days ago · 10 km deep · 96 km away
  10. 4.695 km SSE of Hihifo, Tonga · 2136 days ago · 10 km deep · 16 km away
  11. 4.693 km SSE of Hihifo, Tonga · 2135 days ago · 19 km deep · 18 km away
  12. 4.136 km SW of Hihifo, Tonga · 2130 days ago · 85 km deep · 95 km away
  13. 5.198 km SE of Hihifo, Tonga · 2119 days ago · 10 km deep · 44 km away
  14. 4.9162 km SSE of Hihifo, Tonga · 2118 days ago · 10 km deep · 61 km away
  15. 4.3135 km SSW of Hihifo, Tonga · 2117 days ago · 84 km deep · 81 km away

Before

  1. 4.8148 km N of Neiafu, Tonga · 2178 days ago · 54 km deep · 58 km away
  2. 4.770 km S of Hihifo, Tonga · 2181 days ago · 49 km deep · 43 km away
  3. 4.462 km SSW of Hihifo, Tonga · 2201 days ago · 77 km deep · 81 km away
  4. 4.377 km ESE of Hihifo, Tonga · 2203 days ago · 13 km deep · 96 km away
  5. 4.2144 km NE of Neiafu, Tonga · 2204 days ago · 31 km deep · 79 km away
  6. 4.4143 km SSW of Hihifo, Tonga · 2206 days ago · 131 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c8vp. Read Fri, Oct 2, 2026, 8:08 AM UTC.