M4.2 earthquake Carlsberg Ridge
A magnitude 4.2 earthquake struck in the Carlsberg Ridge on Thu, Aug 21, 2003, 4:40 PM GMT+5 (11:40 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.4 Carlsberg Ridge. 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2003-08-21 11:40:12 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 2.312° S, 68.875° E
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
no people dead or missing; no people injured; no buildings damaged or destroyed
From the USGS event page for usp000c5h4. U.S. Geological Survey text and figures are in the public domain.
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
- Station coverage gap
- 119°
- Stations used
- 11
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.4Carlsberg Ridge · 8438 days ago · 10 km deep · 40 km away
- 4.3Carlsberg Ridge · 8438 days ago · 10 km deep · 25 km away
- 4.2Carlsberg Ridge · 8433 days ago · 10 km deep · 30 km away
Before
Earthquakes todayLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000c5h4. Read Thu, Oct 1, 2026, 7:50 PM UTC.