Vanuatu earthquakes

M5.1 earthquake 90 km N of Isangel, Vanuatu

A magnitude 5.1 earthquake struck 90 km N of Isangel, Vanuatu on Thu, Jul 21, 1977, 6:01 PM GMT+11 (07:01 UTC), 233 km (145 mi) below the surface.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
5.1 (mb), moderate
Local time
UTC
1977-07-21 07:01:21 UTC
Depth
233.0 km (144.8 mi), intermediate-depth
Epicenter
18.733° S, 169.156° 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
28

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.1 and up: 5 in the 60 days after this one and 7 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000ptm. Read Tue, Sep 22, 2026, 9:36 PM UTC.