M2.5 earthquake 18 km E of Kumba?, Turkey
A magnitude 2.5 earthquake struck 18 km E of Kumba?, Turkey on Fri, Jul 26, 1991, 2:36 AM GMT+3 (23:36 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M2.8 8 km N of Esenyurt, Turkey. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.5 (Md, duration), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1991-07-25 23:36:54 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 40.852° N, 27.675° E
- Region
- Turkey
- 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 10 in the 30 days before it.
After
Before
- 3.221 km SSE of Biga, Turkey · 12854 days ago · 10 km deep · 91 km away
- 2.90 km SW of Çatalca, Turkey · 12863 days ago · 10 km deep · 73 km away
- 2.820 km NNW of Biga, Turkey · 12866 days ago · 10 km deep · 67 km away
- 2.98 km SW of Arnavutköy, Turkey · 12867 days ago · 10 km deep · 90 km away
- 2.80 km E of Çatalca, Turkey · 12867 days ago · 10 km deep · 74 km away
- 2.62 km ENE of Çatalca, Turkey · 12868 days ago · 10 km deep · 76 km away
- 2.69 km NE of Çatalca, Turkey · 12868 days ago · 10 km deep · 82 km away
- 2.82 km NE of Çatalca, Turkey · 12875 days ago · 10 km deep · 76 km away
- 2.49 km SSW of Erdek, Turkey · 12877 days ago · 10 km deep · 60 km away
- 2.510 km N of Gönen, Turkey · 12880 days ago · 10 km deep · 73 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0004un1. Read Sat, Oct 3, 2026, 6:02 AM UTC.