Indonesia earthquakes

M6.4 earthquake 138 km WNW of Ternate, Indonesia

A magnitude 6.4 earthquake struck 138 km WNW of Ternate, Indonesia on Thu, Jan 29, 1987, 10:43 AM GMT+8 (02:43 UTC), 48 km (30 mi) below the surface.

A larger quake followed: M6.8 136 km W of Ternate, Indonesia. This one was a foreshock.

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The earthquake

Magnitude: 6.4 (mw), strong
Local time: Thu, Jan 29, 1987, 10:43 AM GMT+8
UTC: 1987-01-29 02:43:47 UTC
Depth: 48.4 km (30.1 mi), shallow
Epicenter: 1.265° N, 126.232° E
Region: Indonesia
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.

Depth from: CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Nearby

Within 100 km, magnitude 3.4 and up: 27 in the 60 days after this one and 2 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000320a (also filed as choy19870129024347, gcmtb012987a, gcmt19870129024347, iscgem477521). Read Sat, Sep 26, 2026, 10:36 PM UTC.