M5.7 earthquake 135 km SSW of Gataivai, Samoa
A magnitude 5.7 earthquake struck 135 km SSW of Gataivai, Samoa on Sun, Sep 23, 1956, 7:04 PM GMT-11 (06:04 UTC), 15 km (9 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (Mw, moment), moderate
- Magnitude from
- ISC-GEM global catalog
- Local time
- UTC
- 1956-09-24 06:04:45 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 14.887° S, 172.921° 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.
- Magnitude uncertainty
- ±0.36
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.7 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem888724. Read Thu, Oct 1, 2026, 4:52 AM UTC.