M4.5 earthquake 45 km ESE of Port-Olry, Vanuatu
A magnitude 4.5 earthquake struck 45 km ESE of Port-Olry, Vanuatu on Thu, Oct 25, 1973, 1:49 PM GMT+11 (02:49 UTC), 127 km (79 mi) below the surface.
A larger quake followed: M6.0 38 km ESE of Port-Olry, Vanuatu. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 1973-10-25 02:49:08 UTC
- Depth
- 127.0 km (78.9 mi), intermediate-depth
- Epicenter
- 15.208° S, 167.458° E
- Region
- Vanuatu
- 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.
- Stations used
- 17
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.038 km ESE of Port-Olry, Vanuatu · 19289 days ago · 124 km deep · 7 km away
- 4.695 km E of Port-Olry, Vanuatu · 19278 days ago · 23 km deep · 56 km away
Before
Earthquakes todayVanuatu earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00003xe. Read Tue, Sep 22, 2026, 9:18 AM UTC.