Tonga earthquakes

M4.9 earthquake 102 km SE of Pangai, Tonga

A magnitude 4.9 earthquake struck 102 km SE of Pangai, Tonga on Mon, May 14, 2018, 12:42 PM GMT+13 (23:42 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M5.6 104 km ENE of ‘Ohonua, Tonga. This one was a foreshock.

Nuku‘alofa 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
4.9 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-05-13 23:42:42 UTC
Depth
25.7 km (16.0 mi), shallow
Epicenter
20.464° S, 173.659° 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 6.4 km horizontally, 4.6 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
54°
Stations used
148

Nearest places

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

Nearby

Within 100 km, magnitude 1.9 and up: 7 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.677 km SSE of Pangai, Tonga · 3059 days ago · 10 km deep · 31 km away
  2. 5.6104 km ENE of ‘Ohonua, Tonga · 3058 days ago · 10 km deep · 75 km away
  3. 5.0118 km ENE of ‘Ohonua, Tonga · 3058 days ago · 10 km deep · 61 km away
  4. 4.6125 km E of ‘Ohonua, Tonga · 3046 days ago · 10 km deep · 83 km away
  5. 4.996 km SE of Pangai, Tonga · 3013 days ago · 10 km deep · 13 km away
  6. 5.0112 km SE of Pangai, Tonga · 3012 days ago · 10 km deep · 21 km away
  7. 4.9104 km SSE of Pangai, Tonga · 3010 days ago · 10 km deep · 23 km away

Before

  1. 5.5121 km E of ‘Ohonua, Tonga · 3064 days ago · 10 km deep · 79 km away
  2. 5.0120 km ENE of ‘Ohonua, Tonga · 3070 days ago · 10 km deep · 50 km away
  3. 4.3101 km E of ‘Ohonua, Tonga · 3071 days ago · 10 km deep · 95 km away
  4. 4.6103 km ESE of Pangai, Tonga · 3073 days ago · 10 km deep · 48 km away
  5. 4.487 km SE of Pangai, Tonga · 3085 days ago · 10 km deep · 15 km away
  6. 4.699 km ESE of Pangai, Tonga · 3085 days ago · 10 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000e4ci. Read Fri, Oct 2, 2026, 12:49 PM UTC.