M5.7 earthquake 74 km E of Lakatoro, Vanuatu
A magnitude 5.7 earthquake struck 74 km E of Lakatoro, Vanuatu on Tue, Aug 28, 1973, 12:48 AM GMT+11 (13:48 UTC), 11 km (7 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mb), moderate
- Local time
- UTC
- 1973-08-27 13:48:31 UTC
- Depth
- 11.0 km (6.8 mi), shallow
- Epicenter
- 15.988° S, 168.102° E
- Region
- Vanuatu
- Strongest shaking
- VI, strong shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VI, strong shaking
- Peak ground acceleration
- 18.4% of gravity
- Peak ground velocity
- 2.4 cm/s
- Map
- Automatic

Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 73
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 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 usp0000385 (also filed as atlas19730827134831, iscgem757650). Read Tue, Sep 22, 2026, 8:27 PM UTC.