M4.7 earthquake 75 km NNW of Isangel, Vanuatu
A magnitude 4.7 earthquake struck 75 km NNW of Isangel, Vanuatu on Tue, Aug 16, 1977, 10:20 PM GMT+11 (11:20 UTC), 238 km (148 mi) below the surface.
A larger quake followed: M4.8 56 km N of Isangel, Vanuatu. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1977-08-16 11:20:36 UTC
- Depth
- 238.0 km (147.9 mi), intermediate-depth
- Epicenter
- 18.880° S, 169.123° 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
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.6114 km WNW of Isangel, Vanuatu · 17934 days ago · 33 km deep · 91 km away
- 4.856 km N of Isangel, Vanuatu · 17926 days ago · 254 km deep · 32 km away
- 4.848 km NNW of Isangel, Vanuatu · 17917 days ago · 168 km deep · 26 km away
- 4.660 km NNW of Isangel, Vanuatu · 17895 days ago · 221 km deep · 15 km away
Before
- 4.931 km NNW of Isangel, Vanuatu · 17938 days ago · 150 km deep · 44 km away
- 5.1100 km WNW of Isangel, Vanuatu · 17956 days ago · 30 km deep · 80 km away
- 5.190 km N of Isangel, Vanuatu · 17961 days ago · 233 km deep · 17 km away
- 4.829 km NW of Isangel, Vanuatu · 17964 days ago · 126 km deep · 58 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000q4e. Read Tue, Sep 22, 2026, 11:32 PM UTC.