M 7.5 earthquake – 6 km SSE of Ilgaz, Turkey

Nov 26, 1943 · 22:20 UTC · Nov 26, 1943
Local time: Nov 27, 1943 · 01:20 (UTC+3)

MajorShallow · 20 km Reviewed by a seismologist

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Magnitude: 7.5moment magnitude (mw)
Depth: 20 kmShallow earthquake
Epicenter: 40.867, 33.65130 km from Çankırı
Energy released: 2.7 megatons of TNTabout 179 × Hiroshima
Felt reports: —"Did You Feel It?" responses
Shaking intensity: 7.4max. instrumental (MMI)
Aftershocks: 0M2.5+ within 145 km
Significance: 865USGS score, 0–1,000+

The strongest within 300 km on record

No earthquake this strong has been recorded this close since our catalog begins in 1900.

How strong was it?

Major earthquake. It released 2.7 megatons of TNT, 5,623 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.

Chile 1960 M 9.5

Japan 2011 M 9.1

San Francisco 1906 M 7.9

Turkey 2023 M 7.8

This earthquake M 7.5

Haiti 2010 M 7.0

Northridge 1994 M 6.7

The strongest earthquakes within 300 km

Since 1900, around Turkey.