M7.3 earthquake 55 km S of Ambon, Indonesia
A magnitude 7.3 earthquake struck 55 km S of Ambon, Indonesia on Sun, Oct 8, 1950, 12:53 PM GMT+9:30 (03:23 UTC), 20 km (12 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 7.3 (mw), major
- Local time
- UTC
- 1950-10-08 03:23:13 UTC
- Depth
- 20.0 km (12.4 mi), shallow
- Epicenter
- 4.199° S, 128.233° 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
- 13.5% of gravity
- Peak ground velocity
- 2.7 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.
- Magnitude uncertainty
- ±0.27
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem895901. Read Tue, Sep 22, 2026, 7:44 AM UTC.