Samoa earthquakes

M4.5 earthquake 138 km SW of Gataivai, Samoa

A magnitude 4.5 earthquake struck 138 km SW of Gataivai, Samoa on Thu, Jul 12, 2018, 3:08 PM GMT+13 (02:08 UTC), 39 km (24 mi) below the surface.

A larger quake followed: M5.1 126 km NE of Hihifo, Tonga. This one was a foreshock.

Apia forecastMore in Samoa

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-07-12 02:08:08 UTC
Depth
38.9 km (24.2 mi), shallow
Epicenter
14.641° S, 173.308° W
Region
Samoa
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 10.3 km horizontally, 4.8 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
114°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.8136 km NE of Hihifo, Tonga · 2997 days ago · 10 km deep · 74 km away
  2. 4.690 km NE of Hihifo, Tonga · 2984 days ago · 35 km deep · 92 km away
  3. 4.393 km N of Hihifo, Tonga · 2976 days ago · 35 km deep · 88 km away
  4. 4.9108 km N of Hihifo, Tonga · 2971 days ago · 33 km deep · 53 km away · felt by 1
  5. 4.6134 km NNE of Hihifo, Tonga · 2965 days ago · 10 km deep · 20 km away
  6. 5.1126 km NE of Hihifo, Tonga · 2965 days ago · 10 km deep · 53 km away
  7. 4.6102 km NNE of Hihifo, Tonga · 2964 days ago · 19 km deep · 52 km away
  8. 4.6111 km ENE of Hihifo, Tonga · 2962 days ago · 10 km deep · 95 km away
  9. 4.8123 km NE of Hihifo, Tonga · 2958 days ago · 10 km deep · 70 km away
  10. 4.9144 km NE of Hihifo, Tonga · 2949 days ago · 10 km deep · 56 km away
  11. 4.767 km N of Hihifo, Tonga · 2946 days ago · 82 km deep · 96 km away

Before

  1. 4.256 km NNE of Hihifo, Tonga · 3006 days ago · 90 km deep · 99 km away
  2. 4.878 km NNE of Hihifo, Tonga · 3009 days ago · 10 km deep · 81 km away · felt by 1
  3. 4.683 km NNE of Hihifo, Tonga · 3017 days ago · 35 km deep · 71 km away
  4. 5.3117 km ENE of Hihifo, Tonga · 3032 days ago · 55 km deep · 100 km away · felt by 9
  5. 4.4119 km N of Hihifo, Tonga · 3032 days ago · 31 km deep · 41 km away

Earthquakes todaySamoa earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000g7xt. Read Sat, Oct 3, 2026, 2:33 AM UTC.