Tonga earthquakes

M4.6 earthquake 65 km S of Hihifo, Tonga

A magnitude 4.6 earthquake struck 65 km S of Hihifo, Tonga on Thu, Oct 22, 2020, 10:17 AM GMT+14 (20:17 UTC), 70 km (43 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.

Open the live map with earthquakes

The earthquake

Magnitude
4.6 (mb), light
Local time
UTC
2020-10-21 20:17:30 UTC
Depth
69.6 km (43.2 mi), shallow
Epicenter
16.540° S, 173.735° 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 14.3 km horizontally, 20.6 km in depth
Magnitude uncertainty
±0.32
Depth from
From location
Station coverage gap
138°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 14 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.2106 km SSW of Hihifo, Tonga · 2165 days ago · 141 km deep · 51 km away
  2. 4.9133 km SSW of Hihifo, Tonga · 2150 days ago · 134 km deep · 77 km away
  3. 4.3109 km SSE of Hihifo, Tonga · 2149 days ago · 32 km deep · 58 km away
  4. 4.377 km SW of Hihifo, Tonga · 2148 days ago · 110 km deep · 54 km away
  5. 4.917 km ENE of Hihifo, Tonga · 2145 days ago · 10 km deep · 72 km away
  6. 4.699 km SE of Hihifo, Tonga · 2143 days ago · 22 km deep · 68 km away
  7. 4.996 km SSE of Hihifo, Tonga · 2140 days ago · 84 km deep · 33 km away
  8. 4.7100 km SSE of Hihifo, Tonga · 2140 days ago · 83 km deep · 44 km away
  9. 4.478 km ESE of Hihifo, Tonga · 2136 days ago · 10 km deep · 82 km away
  10. 4.695 km SSE of Hihifo, Tonga · 2134 days ago · 10 km deep · 35 km away
  11. 4.693 km SSE of Hihifo, Tonga · 2134 days ago · 19 km deep · 32 km away
  12. 4.136 km SW of Hihifo, Tonga · 2129 days ago · 85 km deep · 46 km away
  13. 5.198 km SE of Hihifo, Tonga · 2117 days ago · 10 km deep · 57 km away
  14. 4.3135 km SSW of Hihifo, Tonga · 2115 days ago · 84 km deep · 82 km away

Before

  1. 4.1111 km SSE of Hihifo, Tonga · 2175 days ago · 76 km deep · 49 km away
  2. 4.8148 km N of Neiafu, Tonga · 2177 days ago · 54 km deep · 87 km away
  3. 4.770 km S of Hihifo, Tonga · 2179 days ago · 49 km deep · 6 km away
  4. 4.462 km SSW of Hihifo, Tonga · 2200 days ago · 77 km deep · 37 km away

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000c6bm. Read Wed, Sep 30, 2026, 7:30 PM UTC.