Tonga earthquakes

M4.4 earthquake 101 km NW of Pangai, Tonga

A magnitude 4.4 earthquake struck 101 km NW of Pangai, Tonga on Thu, Mar 19, 2015, 12:25 AM GMT+13 (11:25 UTC), 73 km (45 mi) below the surface.

A larger quake followed: M5.1 33 km WNW of Neiafu, 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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2015-03-18 11:25:09 UTC
Depth
72.9 km (45.3 mi), intermediate-depth
Epicenter
19.051° S, 174.895° 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 7.2 km horizontally, 12.7 km in depth
Magnitude uncertainty
±0.19
Depth from
FROM_LOCATION
Station coverage gap
120°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.441 km WNW of Neiafu, Tonga · 4217 days ago · 43 km deep · 91 km away
  2. 4.471 km NW of Pangai, Tonga · 4217 days ago · 243 km deep · 34 km away
  3. 4.7107 km WSW of Neiafu, Tonga · 4213 days ago · 72 km deep · 11 km away
  4. 5.133 km WNW of Neiafu, Tonga · 4194 days ago · 35 km deep · 82 km away · felt by 1
  5. 4.7154 km W of Neiafu, Tonga · 4182 days ago · 208 km deep · 88 km away
  6. 4.244 km W of Neiafu, Tonga · 4177 days ago · 191 km deep · 72 km away
  7. 4.847 km WSW of Neiafu, Tonga · 4161 days ago · 89 km deep · 60 km away · felt by 2
  8. 4.068 km WSW of Neiafu, Tonga · 4161 days ago · 63 km deep · 37 km away
  9. 4.546 km W of Neiafu, Tonga · 4161 days ago · 85 km deep · 62 km away

Before

  1. 4.652 km WNW of Neiafu, Tonga · 4222 days ago · 35 km deep · 74 km away
  2. 4.656 km W of Neiafu, Tonga · 4222 days ago · 20 km deep · 59 km away
  3. 4.9145 km W of Neiafu, Tonga · 4222 days ago · 234 km deep · 83 km away
  4. 4.372 km NW of Neiafu, Tonga · 4233 days ago · 155 km deep · 97 km away
  5. 4.9103 km W of Neiafu, Tonga · 4239 days ago · 45 km deep · 38 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10001pth. Read Mon, Oct 5, 2026, 4:06 AM UTC.