M6.3 earthquake 71 km SE of Tobelo, Indonesia
A magnitude 6.3 earthquake struck 71 km SE of Tobelo, Indonesia on Thu, Apr 9, 1987, 9:48 AM GMT+9 (00:48 UTC), 45 km (28 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.3 (mw), strong
- Local time
- UTC
- 1987-04-09 00:48:55 UTC
- Depth
- 45.0 km (28.0 mi), shallow
- Epicenter
- 1.242° N, 128.432° E
- Region
- Indonesia
- Strongest shaking
- VI, strong shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VI, strong shaking
- Peak ground acceleration
- 13.9% of gravity
- Peak ground velocity
- 2.4 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.596 km SE of Tobelo, Indonesia · 14412 days ago · 33 km deep · 26 km away
- 4.8103 km ESE of Tobelo, Indonesia · 14412 days ago · 33 km deep · 41 km away
- 5.194 km SE of Tobelo, Indonesia · 14409 days ago · 48 km deep · 24 km away
- 5.692 km SSE of Tobelo, Indonesia · 14409 days ago · 33 km deep · 24 km away
- 5.198 km SE of Tobelo, Indonesia · 14406 days ago · 33 km deep · 27 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000340y (also filed as gcmtc040987a, gcmt19870409004854, atlas19870409004855, iscgem468799). Read Tue, Sep 22, 2026, 8:43 PM UTC.