An earthquake registering 7.7 Mw destroyed Almaty in Russian Turkestan.
1911 Kebin earthquake
The 1911 Kebin earthquake, or Chon-Kemin earthquake, struck Russian Turkestan on 3 January. Registering at a moment magnitude of 8.0, it killed 452 people, destroyed more than 770 buildings in Almaty, Kazakhstan, and resulted in 125 miles (201 km) of surface faulting in the valleys of Chon-Kemin, Chilik and Chon-Aksu.
Moment magnitude scale
The moment magnitude scale is a measure of an earthquake's magnitude based on its seismic moment. Mw was defined in a 1979 paper by Thomas C. Hanks and Hiroo Kanamori. Similar to the local magnitude/Richter scale (ML ) defined by Charles Francis Richter in 1935, it uses a logarithmic scale; small earthquakes have approximately the same magnitudes on both scales. Despite the difference, news media often use the term "Richter scale" when referring to the moment magnitude scale.
Almaty
Almaty, formerly Alma-Ata, is the largest city in Kazakhstan, with a population exceeding two million residents within its metropolitan area. Located in the foothills of the Trans-Ili Alatau mountains in southern Kazakhstan, near the border with Kyrgyzstan, Almaty stands as a pivotal center of culture, commerce, finance and innovation. The city is nestled at an elevation of 700–900 metres, with the Big Almaty and Small Almaty rivers running through it, originating from the surrounding mountains and flowing into the plains. Almaty is the second-largest city in Central Asia and the fourth-largest in the Commonwealth of Independent States (CIS).
Russian Turkestan
Russian Turkestan was a colony of the Russian Empire, located in the western portion of the Central Asian region of Turkestan. Administered as a Krai or Governor-Generalship, it comprised the oasis region to the south of the Kazakh Steppe, but not the protectorates of the Emirate of Bukhara and the Khanate of Khiva. It was populated by speakers of Russian, Uzbek, Kazakh, Kyrgyz, and Tajik.