M4.9 earthquake 82 km SSE of Isangel, Vanuatu
A magnitude 4.9 earthquake struck 82 km SSE of Isangel, Vanuatu on Thu, Aug 25, 1977, 4:29 AM GMT+11 (17:29 UTC), 136 km (85 mi) below the surface.
A larger quake followed: M5.0 114 km SSE 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
- 4.9 (mb), light
- Local time
- UTC
- 1977-08-24 17:29:53 UTC
- Depth
- 136.0 km (84.5 mi), intermediate-depth
- Epicenter
- 20.202° S, 169.639° 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
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.0114 km SSE of Isangel, Vanuatu · 17924 days ago · 164 km deep · 33 km away
- 4.945 km SSE of Isangel, Vanuatu · 17886 days ago · 48 km deep · 38 km away
Before
Earthquakes todayVanuatu earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000qa8. Read Tue, Sep 22, 2026, 11:13 AM UTC.