M4.2 earthquake 171 km SSW of Kencong, Indonesia
A magnitude 4.2 earthquake struck 171 km SSW of Kencong, Indonesia on Wed, Aug 4, 2021, 12:31 PM GMT+7 (05:31 UTC), 47 km (29 mi) below the surface.
A larger quake followed: M4.9 129 km SSW of Kencong, Indonesia. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb), light
- Local time
- UTC
- 2021-08-04 05:31:12 UTC
- Depth
- 47.4 km (29.5 mi), shallow
- Epicenter
- 9.788° S, 112.986° 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.
- Location uncertainty
- About 8.5 km horizontally, 11.1 km in depth
- Magnitude uncertainty
- ±0.30
- Depth from
- From location
- Station coverage gap
- 168°
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.9129 km SSW of Kencong, Indonesia · 1849 days ago · 51 km deep · 43 km away · felt by 2
- 4.3257 km S of Kencong, Indonesia · 1844 days ago · 10 km deep · 90 km away
Before
Earthquakes todayIndonesia earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000f4il. Read Sun, Sep 27, 2026, 3:15 AM UTC.