M4.9 earthquake 112 km NNW of Ternate, Indonesia
A magnitude 4.9 earthquake struck 112 km NNW of Ternate, Indonesia on Tue, Oct 21, 1986, 9:15 PM GMT+9 (12:15 UTC), 67 km (42 mi) below the surface.
A larger quake followed: M5.0 68 km WSW of Tobelo, Indonesia. 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
- 1986-10-21 12:15:57 UTC
- Depth
- 67.0 km (41.6 mi), shallow
- Epicenter
- 1.656° N, 126.848° 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
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 12 in the 60 days after this one and 4 in the 30 days before it.
After
- 5.068 km WSW of Tobelo, Indonesia · 14580 days ago · 142 km deep · 65 km away
- 5.0157 km WNW of Tobelo, Indonesia · 14580 days ago · 76 km deep · 68 km away
- 5.061 km W of Tobelo, Indonesia · 14577 days ago · 113 km deep · 71 km away
- 4.7152 km NW of Ternate, Indonesia · 14571 days ago · 49 km deep · 44 km away
- 4.8167 km WNW of Tobelo, Indonesia · 14561 days ago · 78 km deep · 79 km away
- 6.0153 km WNW of Tobelo, Indonesia · 14560 days ago · 79 km deep · 84 km away
- 4.3115 km NW of Ternate, Indonesia · 14557 days ago · 33 km deep · 4 km away
- 5.1Molucca Sea · 14547 days ago · 48 km deep · 32 km away
- 4.7131 km NW of Ternate, Indonesia · 14545 days ago · 61 km deep · 31 km away
- 4.4156 km NW of Ternate, Indonesia · 14543 days ago · 95 km deep · 52 km away
- 4.8128 km WNW of Tobelo, Indonesia · 14543 days ago · 86 km deep · 34 km away
- 4.8143 km WNW of Tobelo, Indonesia · 14533 days ago · 58 km deep · 70 km away
Before
- 4.762 km SW of Tobelo, Indonesia · 14585 days ago · 207 km deep · 89 km away
- 4.5150 km NW of Ternate, Indonesia · 14587 days ago · 33 km deep · 38 km away
- 4.4181 km WNW of Tobelo, Indonesia · 14594 days ago · 33 km deep · 77 km away
- 4.778 km NNW of Ternate, Indonesia · 14606 days ago · 144 km deep · 37 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002z6f. Read Tue, Sep 22, 2026, 4:35 AM UTC.