M6.6 earthquake 121 km NW of Ambon, Indonesia
A magnitude 6.6 earthquake struck 121 km NW of Ambon, Indonesia on Thu, Jul 30, 1942, 7:49 AM GMT+9 (22:49 UTC), 35 km (22 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (mw), strong
- Local time
- UTC
- 1942-07-29 22:49:18 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 2.825° S, 127.512° 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
- 12.0% 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.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.24
- 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 iscgem900402. Read Tue, Sep 22, 2026, 9:37 PM UTC.