M6.4 earthquake 193 km NE of Tual, Indonesia
A magnitude 6.4 earthquake struck 193 km NE of Tual, Indonesia on Tue, Apr 17, 1973, 9:34 PM GMT+9 (12:34 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.4 (ms), strong
- Local time
- UTC
- 1973-04-17 12:34:26 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 4.439° S, 134.030° 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
- 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
- OPERATOR_ASSIGNED
- Stations used
- 68
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.8171 km SW of Nabire, Indonesia · 19516 days ago · 33 km deep · 31 km away
- 5.0173 km SW of Nabire, Indonesia · 19514 days ago · 33 km deep · 61 km away
- 5.2171 km SW of Nabire, Indonesia · 19491 days ago · 43 km deep · 30 km away
Before
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00001eb (also filed as atlas19730417123425, iscgem761648). Read Tue, Sep 22, 2026, 8:40 AM UTC.