M5.5 earthquake 78 km N of Ternate, Indonesia
A magnitude 5.5 earthquake struck 78 km N of Ternate, Indonesia on Fri, Feb 4, 1983, 3:31 PM GMT+9 (06:31 UTC), 144 km (89 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mb), moderate
- Local time
- UTC
- 1983-02-04 06:31:15 UTC
- Depth
- 144.0 km (89.5 mi), intermediate-depth
- Epicenter
- 1.493° N, 127.294° E
- Region
- Indonesia
- Strongest shaking
- IV, light 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
- IV, light shaking
- Peak ground acceleration
- 1.1% of gravity
- Peak ground velocity
- -1.0 cm/s
- Map
- Automatic
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 2.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.4153 km WNW of Tobelo, Indonesia · 15922 days ago · 71 km deep · 93 km away
- 5.088 km W of Tobelo, Indonesia · 15914 days ago · 87 km deep · 35 km away
- 4.894 km WNW of Ternate, Indonesia · 15892 days ago · 76 km deep · 84 km away
- 4.872 km WNW of Tobelo, Indonesia · 15888 days ago · 112 km deep · 43 km away
Before
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001su3 (also filed as gcmtb020483a, gcmt19830204063115, iscgem582168). Read Mon, Sep 28, 2026, 7:12 AM UTC.