M4.1 earthquake 2 km ESE of Bolu, Turkey
A magnitude 4.1 earthquake struck 2 km ESE of Bolu, Turkey on Wed, Apr 14, 2004, 12:47 AM GMT+3 (21:47 UTC), 5 km (3 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2004-04-13 21:47:23 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 40.729° N, 31.629° E
- Region
- Turkey
- Strongest shaking
- V, moderate shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Four people injured jumping from buildings in the Bolu area.
From the USGS event page for usp000cse6. U.S. Geological Survey text and figures are in the public domain.
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- V, moderate 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.
- Station coverage gap
- 43°
- Stations used
- 116
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTurkey earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000cse6 (also filed as atlas20040413214723). Read Fri, Oct 2, 2026, 11:31 AM UTC.