Turkey earthquakes

M4.6 earthquake 4 km E of Düzce, Turkey

A magnitude 4.6 earthquake struck 4 km E of Düzce, Turkey on Tue, Aug 17, 1999, 9:28 AM GMT+3 (06:28 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.9 4 km SE of Köseköy, Turkey. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 4.6 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Tue, Aug 17, 1999, 9:28 AM GMT+3
UTC: 1999-08-17 06:28:00 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 40.841° N, 31.218° E
Region: Turkey
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
4.6	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · 40 stations
5.16	Mw, moment	ISC-GEM global catalog	Final · ±0.2

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

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.6 and up: 65 in the 60 days after this one and 23 in the 30 days before it.

After

The first 60 of 65.

Before

Earthquakes today Turkey earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0009d6k (also filed as iscgem1655250). Read Fri, Oct 2, 2026, 7:30 PM UTC.