2025 Balıkesir earthquakes: Difference between revisions

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| type = [[Normal fault|Normal]]<br>

| type = [[Normal fault|Normal]]<br>

[[Oblique-slip|Oblique-normal]]<ref name=”Earthquake_insights_Oct”>{{Cite web |last=Hubbard |first=J.A. |last2=Bradley |first2=K. |date=28 October 2025 |title=M6.0 earthquake shakes western Türkiye |url=https://earthquakeinsights.substack.com/p/m60-earthquake-shakes-western-turkiye |access-date=28 October 2025 |website=Earthquake Insights}}</ref>

[[Oblique-slip|Oblique-normal]]<ref name=”Earthquake_insights_Oct”>{{Cite web |last=Hubbard |first=J.A. |last2=Bradley |first2=K. |date=28 October 2025 |title=M6.0 earthquake shakes western Türkiye |url=https://earthquakeinsights.substack.com/p/m60-earthquake-shakes-western-turkiye |access-date=28 October 2025 |website=Earthquake Insights}}</ref>

| aftershocks = 1,235+, including 19 ≥M4.0

| aftershocks = ,+, including ≥M4.0

| damage =

| damage =

| intensity = {{MMI|9}}

| intensity = {{MMI|9}}

Earthquake in Turkey

On 10 August 2025 at 19:53 TRT, a 6.1 earthquake struck the Sındırgı district of Balıkesir, Turkey, 8 km (5.0 mi) south-southwest of Bigadiç.[2] One person died and 52 others were injured as a result of the first event. On 27 October at 22:48 TRT, a Mw  6.0 event struck the same area, injuring 68 people.[3]

The western part of Anatolia forms part of the zone of active extensional tectonics that extends westwards through the Aegean Sea plate to the Gulf of Corinth. This extension is a result of the rollback of the African plate as it subducts beneath the Aegean Sea plate. Previous earthquakes in this area include a sequence of three destructive events during the 1969–1970 period, the 1969 Demirci earthquake, the 1969 Alaşehir earthquake and the 1970 Gediz earthquake.[4][5]

Seismic activity from August 1-10, 2025 around the M6.1 Balıkesir earthquake. The earthquakes are colored by time, projected to the right onto a timeline, and shown below the map as a time series. Several foreshocks are visible.

The United States Geological Survey (USGS) reported a magnitude of 6.1. Its epicenter was located 8 km (5.0 mi) south-southwest of Bigadiç in Balıkesir Province.[2] The Kandilli Observatory said that the quake was centered near the districts of Alakır and Sındırgı, and occurred at a depth of 7.7 km (4.8 mi).[6] The earthquake’s epicenter lies close to the western end of the Simav fault zone, which is interpreted to be responsible for the 1969 Demirci event.[7]

The earthquake shaking had a maximum Modified Mercalli intensity of IX (Violent),[2] and was felt as far away as the cities of Istanbul, İzmir, Aydın, Eskişehir, and Tekirdağ[8] and in the neighboring countries of Bulgaria, Cyprus, Greece, North Macedonia and Romania.[9] By 13 August at 9:30 local time, 1,235 aftershocks were recorded of which 19 exceeded magnitude 4.0,[10] and included a mb 4.2 event at 17:15 UTC.[11] On August 24, at 18:58 UTC, a magnitude Mw  4.8 aftershock occurred.[12]

The earthquake mainshock was preceded by a sequence of foreshocks, with three events of magnitude >3 during the previous three days.[7]

A second large earthquake, measuring Mww  6.0, struck 4 km (2.5 mi) east-southeast of Sındırgı on 27 October at 22:48:29 TRT, at a depth of 8 km (5.0 mi). It had a maximum Mercalli intensity of VIII (Severe).[3] Within an hour of the mainshock, 26 aftershocks were reported, the largest measuring Mw  4.2.[13][14]

https://upload.wikimedia.org/wikipedia/commons/transcoded/f/fc/2025_Bal%C4%B1kesir_depremi.webm/2025_Bal%C4%B1kesir_depremi.webm.480p.vp9.webm
A video of shaking from the August event

Two minarets were damaged or destroyed in Sındırgı.[15] A three-story apartment block collapsed,[16] 729 buildings were severely damaged[17] and 61 were slightly damaged.[18] Seventy-three mosques were also affected.[19] An 82-year-old man died after he was rescued from a collapsed building.[20] Fifty-two people were initially hospitalized due to injuries or panic.[21][22] Eight houses were also damaged in Manisa. Most of the buildings that collapsed or suffered damage were uninhabited and abandoned.[23] A sinkhole also appeared in a rural area near Odunpazarı in Eskişehir Province.[24]

Around 1,100 search and rescue personnel and 50 damage assessment teams were deployed to the affected areas.[20] The owner and contractor of the building in Sındırgı in which the fatality was recorded was taken into custody on suspicion of “causing death and injury by negligence”.[25]

Twenty-six people were injured,[26] five abandoned buildings and a shop collapsed, at least 80 structures were severely damaged and a collapsing wall damaged a vehicle in Sındırgı.[27][28][29][30][31] Forty-two people were injured and 83 structures were damaged in Manisa Province.[32] A house sustained cracks in walls and a collapsed ceiling in Gördes.[33] Several aftershocks, the largest of which measured Mw  4.8, caused a building heavily damaged by the August 11 quake to collapse partially.[34] Schools were closed for one day.[35] Public buildings were opened to temporarily shelter victims.[36]

  1. ^ Hubbard, J.A.; Bradley, K. (28 October 2025). “M6.0 earthquake shakes western Türkiye”. Earthquake Insights. Retrieved 28 October 2025.
  2. ^ a b c ANSS. “M 6.1 – 8 km SSW of Bigadiç, Turkey 2025”. Comprehensive Catalog. U.S. Geological Survey.
  3. ^ a b ANSS. “M 6.0 – 8 km SE of Sındırgı, Turkey 2025”. Comprehensive Catalog. U.S. Geological Survey.
  4. ^ Haluk Eyidoğan; James Jackson (1985). “A seismological study of normal faulting in the Demirci, Alaşehir and Gediz earthquakes of 1969–70 in western Turkey: implications for the nature and geometry of deformation in the continental crust”. Geophysical Journal International. 81 (3): 569–607. Bibcode:1985GeoJ…81..569E. doi:10.1111/j.1365-246X.1985.tb06423.x.
  5. ^ Bayrak Y. & Bayrak E. (2012). “An Evaluation of Earthquake Hazard Potential for Different Regions in Western Anatolia Using the Historical and Instrumental Earthquake Data”. Pure and Applied Geophysics. 169 (10): 1859–1873. Bibcode:2012PApGe.169.1859B. doi:10.1007/s00024-011-0439-3.
  6. ^ 10 AĞUSTOS 2025 ALAKIR-SINDIRGI (BALIKESIR) M6.1 DEPREMİ ÖN DEĞERLENDİRME RAPORU (Report). Kandilli Observatory. 11 August 2025. Retrieved 11 August 2025.
  7. ^ a b Hubbard, J.A.; Bradley, K. (11 August 2025). “M6.1 earthquake shakes western Türkiye”. Earthquake Insights. Retrieved 11 August 2025.
  8. ^ “One killed and dozens injured after 6.1 magnitude earthquake hit Turkey’s Balıkesir”. Euronews. 11 August 2025. Retrieved 11 August 2025.
  9. ^ “Силно земетресение удари Турция, усетено е и в България” (in Bulgarian). BTV. 10 August 2025. Retrieved 17 August 2025.
  10. ^ “Balıkesir’deki 6,1’lik depremin ardından 1235 artçı sarsıntı” (in Turkish). Milliyet. 13 August 2025. Retrieved 14 August 2025.
  11. ^ ANSS. “M 4.2 – 8 km WSW of Sındırgı, Turkey 2025”. Comprehensive Catalog. U.S. Geological Survey.
  12. ^ ANSS. “M 4.8 – 3 km SSW of Sındırgı, Turkey 2025”. Comprehensive Catalog. U.S. Geological Survey.
  13. ^ “Balıkesir’de bir saat içinde 26 artçı deprem: İşte son depremlerin büyüklükleri” [26 aftershocks in Balıkesir in an hour: Here are the magnitudes of the latest earthquakes] (in Turkish). Yeni Şafak. 27 October 2025. Retrieved 27 October 2025.
  14. ^ “Balıkesir’de şiddetli artçılar devam ediyor” [Severe aftershocks continue in Balıkesir] (in Turkish). Sonsöz Gazetesi. 27 October 2025. Retrieved 27 October 2025.
  15. ^ “Magnitude 6.1 earthquake strikes Turkey, causing about a dozen buildings to collapse”. Associated Press. 10 August 2025. Retrieved 10 August 2025.
  16. ^ “Balıkesir quake severely damages over 190 buildings, minister says”. Hürriyet Daily News. 12 August 2025. Retrieved 12 August 2025.
  17. ^ “Murat Kurum: Depremin hasar tespit çalışmaları tamamlandı. Balıkesir’de 901, Manisa’da 135 olmak üzere bin 36 bağımsız bölüm ağır hasarlı veya yıkık”. Ankahaber (in Turkish). 16 August 2025. Retrieved 17 August 2025.
  18. ^ “Bakan Kurum: Balıkesir’deki depremin ardından 1 yıkık, 13 ağır hasarlı, 61 az hasarlı yapı tespit edildi”. Anadolu Agency. 11 August 2025. Retrieved 14 August 2025.
  19. ^ “Depremde hasar gören 73 caminin 35’i onarıldı”. Siirt Haberci. 18 August 2025. Retrieved 18 August 2025.
  20. ^ a b “Aftershocks keep residents outdoors after magnitude 6.1 quake hits Balıkesir”. Hürriyet Daily News. 11 August 2025. Retrieved 11 August 2025.
  21. ^ “Sındırgı’daki Depremde 52 Yaralı” [52 Injured in Sındırgı Earthquake] (in Turkish). Son Dakika. 11 August 2025. Retrieved 11 August 2025.
  22. ^ “Balıkesir’de 6,1 büyüklüğünde deprem: 68 mahallede 16 bina yıkıldı, 1 kişi öldü, 29 yaralı var” [6.1 magnitude earthquake in Balıkesir: 16 buildings collapsed in 68 neighborhoods, 1 person died, 29 injured] (in Turkish). Gazete Oksijen. 10 August 2025. Retrieved 10 August 2025.
  23. ^ “Balıkesir’de 6,1 büyüklüğünde deprem”. TRT Haber (in Turkish). 10 August 2025. Retrieved 10 August 2025.
  24. ^ “Balıkesir’deki deprem sonrası Eskişehir’de oluşan obruk böyle görüntülendi”. Ihlas Haber Ajansi (in Turkish). 11 August 2025. Retrieved 11 August 2025.
  25. ^ “Turkey detains constructor after building collapses in earthquake”. AP News. 11 August 2025. Retrieved 11 August 2025.
  26. ^ “Son Dakika… Balıkesir depreminde yaralanan 26 yurttaş taburcu edildi” (in Turkish). Cumhuriyet. 28 October 2025. Retrieved 28 October 2025.
  27. ^ “6.1-magnitude earthquake strikes western Turkey, authorities say”. Al Arabiya English. 27 October 2025. Retrieved 27 October 2025.
  28. ^ “Merkez üssü Sındırgı olan deprem… İlçeye bağlı Alacaatlı Köyü’nde metruk bir ev yıkıldı” (in Turkish). Anka Haber. 27 October 2025. Retrieved 27 October 2025.
  29. ^ “Son dakika..Balıkesir’de 6,1 büyüklüğünde deprem! İstanbul, İzmir, Bursa sallandı” [Breaking news… 6.1 magnitude earthquake in Balıkesir! Istanbul, Izmir, Bursa shaken] (in Turkish). Ekonomi Dünya. 27 October 2025. Retrieved 27 October 2025.
  30. ^ “Sındırgı depreminde çöken binalar sabahın ilk ışıklarıyla böyle görüntülendi” (in Turkish). Yeni Safak. 28 October 2025. Retrieved 28 October 2025.
  31. ^ “Bilanço netleşti: Bakan Kurum Sındırgı’daki hasarı açıkladı” (in Turkish). Jurnal.ist. 29 October 2025. Retrieved 30 October 2025.
  32. ^ “Sındırgı depreminde Manisa’da 83 yapı etkilendi” (in Turkish). DHA. 28 October 2025. Retrieved 28 October 2025.
  33. ^ “Sındırgı merkezli deprem Gördes’te hasara yol açtı: Bir evin tavanı çöktü” [The earthquake, centered in Sındırgı, caused damage in Gördes: The ceiling of a house collapsed.] (in Turkish). Oxu.az. 27 October 2025. Retrieved 27 October 2025.
  34. ^ “Bursa’da hissedildi! Artçı sarsıntılar devam ediyor…” [Felt in Bursa! Aftershocks continue…] (in Turkish). Bursa’da Bugün. 28 October 2025. Retrieved 27 October 2025.
  35. ^ “Balıkesir’de okullara ‘deprem’ arası!” [Schools in Balıkesir on ‘earthquake’ break!] (in Turkish). Nöbetçi Gazete. 27 October 2025. Retrieved 27 October 2025.
  36. ^ “Balıkesir Valiliği: Depremzedeler için tüm kamu binaları barınmaya açıldı” [Balıkesir Governorship: All public buildings have been opened to shelter earthquake victims.] (in Turkish). 24 Saat Gazetesi. 28 October 2025. Retrieved 27 October 2025.

39°18′43″N 28°4′8″E / 39.31194°N 28.06889°E / 39.31194; 28.06889

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