M4.7 earthquake 144 km NNW of Ternate, Indonesia

A magnitude 4.7 earthquake struck 144 km NNW of Ternate, Indonesia on Fri, Aug 22, 1986, 2:38 AM GMT+9 (17:38 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.8 114 km NNW of Ternate, Indonesia. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.7 and up: 24 in the 60 days after this one and 51 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event usp0002xd7. Read Tue, Sep 22, 2026, 5:28 AM UTC.