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Kandilli Observatory building
Boğaziçi University

Kandilli Observatory and Earthquake Research Institute

Since 1868, we have carried on a tradition of observation and research in astronomy, geophysics and earthquake science.

1868Founding of the Imperial Observatory
1911Work begins at Kandilli
1982Institute of Boğaziçi University
Astronomy Laboratory

We observe the Sun every day

On every clear day the Sun, projected onto a drawing board through the telescope, is observed and drawn by hand; sunspots are recorded and sent to international data centres. Beside this text: the Sun right now.

Live image of the Sun from NASA’s SDO satellite
Live · 304 Å · Chromosphere · NASA/SDO
Solar physics building, c. 1932
Since 1868

A 158-year tradition of observation

Trace astronomy, meteorology, geomagnetism and earthquake observations on the journey from the Imperial Observatory to Boğaziçi University.

Solar physics building, c. 1932

News

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Academic Departments

Latest Earthquakes

Live data
24°26°28°30°32°34°36°38°40°42°44°34°36°38°40°42°İstanbulAnkaraİzmirAdanaErzurumVanAntalyaSamsunDiyarbakır
Magnitude Location Depth Date / Time
2.3ML Akkecili-Alasehir (Manisa) 5.4 km
2.1ML Girit Adasi (Akdeniz) 5.0 km
1.7ML Saros Korfezi (Ege Denizi) 6.0 km
2.0ML Akdeniz 69.8 km
1.2ML Saros Korfezi (Ege Denizi) 18.5 km
1.8ML Sogutlu-Puturge (Malatya) 5.0 km
1.8ML Asagiinova-Yenice (Canakkale) 24.4 km
1.6ML Ege Denizi 12.2 km
Source: RETMC rapid solutions · Updated: 13:43 Full list

Weather

Kuleli – Beykoz, Istanbul
12.0°C
Overcast
15 November 2026 15:00
  • Wind22 km/saEast
  • Precipitation0.0 mm
  • Pressure1026 hPa
  • Humidity%70
12°
12°
11°
12°
11°
12°
13°
13°
12°
  • Today15.11 13°8°
  • Tomorrow16.11 14°9°
  • Tuesday17.11 15°10°
  • Wednesday18.11 19°12°
  • Thursday19.11 20°14°
Source: Kandilli Meteorology Laboratory · Updated: 13:38 Detailed forecast
Mobile app

The Rasathane App

Earthquakes analysed by the Regional Earthquake-Tsunami Monitoring and Evaluation Center (RETMC), on your phone the moment they are published.

  • Instant notificationsGet notified of every quake, or only those of magnitude 2.5 / 4.0 and above.
  • List, search, sortSearch the quakes of the last 24 hours, 7 or 30 days and sort them by magnitude.
  • Map and distanceSee quakes on the map and how far they are from your location.
  • From 1900 to todayExplore historical quakes of magnitude 4.0 and above around your location.

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