1887 Verny earthquake

Coordinates: 43°06′N 76°48′E / 43.1°N 76.8°E / 43.1; 76.8
Source: Wikipedia, the free encyclopedia.
1887 Verny earthquake
Ruins of a cathedral after the earthquake
1887 Verny earthquake is located in Kazakhstan
1887 Verny earthquake
Local date8 June 1887 (1887-06-08)
Local time04:35
MagnitudeMw 7.3–7.8
Depth20 km (12 mi)
Epicenter43°06′N 76°48′E / 43.1°N 76.8°E / 43.1; 76.8
Areas affectedKazakhstan, Kyrgyzstan
Max. intensityMSK-64 X (Devastating)
Foreshocks1
Aftershocks250
Casualties330 dead

The 1887 Verny earthquake occurred on June 8 at 04:35

MSK 64 intensity of X (Devastating) has been estimated for the earthquake.[1][2]

Tectonic setting

The geological forces at play in the

Tien Shan mountains, which are moving 7±2 mm/yr towards the south along faults running along their base.[3] The region is dominated by large, north and south-dipping thrust faults along the southern edge of the Tien Shan mountains, and the northern boundary of the Tarim basin, one of them being the Aheqi Fault Zone.[3]

Earthquake

The earthquake was felt over an area of 2,000,000 km2, but severe ground effects were observed approximately for 2,000 km2. In the

focal depth of 20 km was estimated.[4]

Thrust faulting was the cause of the earthquake, likely associated with a structure lying under the Trans-Ili Alatau mountains. It did not produce any surface rupture, thus classifying it as a blind thrust earthquake. Surface evidence of faults lying under the Trans-Ili Alatau mountains are sparse and sometimes absent due to the fast erosion occurring, or do not break to the surface. Due to the absence of surface ruptures, it is not clear if the earthquake rupture faults on the foothills or within the mountain range.[5]

Impact

In the meizoseismal area, large landslides merged into a single mudflow. In the Talgar Valley, two landslides occurred with a total estimated volume of 500 m3. Shaking corresponded to intensity VI, causing the destruction of 265 of the 576 homes in Talgar. In Verny, of the 1,799 brick structures in the city, only one was left standing. Wood-constructed buildings, however, remained intact.[4] Many previously intact buildings collapsed during the at least 250 aftershocks that rocked the region.

At least 332 people were killed the city of Verny. Of which, 161 people died (118 of them were children) in Bolshoi-Almatinskaya and Malo-Almatinskaya villages. Fourteen people; four soldiers and ten prisoners were killed at a

barrack. Landslides were triggered in the mountains, killing 154 people, 87 of them were Kyrgyz.[6][7]

See also

References

  1. ^ Zoya Kalmetyeva; Alexander V. Mikolaichuk; Bolot Moldobekov (2009). "Atlas of Earthquakes in Kyrgyzstan". Applied Geosciences and United Nations International Strategy. Central-Asian Institute for Applied Geosciences.
  2. doi:10.1093/gji/ggy377
    .
  3. ^
    doi:10.1016/j.tecto.2009.11.003
    .
  4. ^
    doi:10.1016/j.quaint.2007.02.006
    .
  5. S2CID 55963427
    .
  6. ^ "Катастрофы в природе: землетрясения - Батыр Каррыев - Ridero". ridero.ru. Retrieved 2016-03-10.
  7. ^ Алма-Ата. Энциклопедия (60000 экз ed.). Алма-Ата: Гл. ред. Казахской советской энциклопедии. 1983. pp. 265–266. {{cite book}}: Unknown parameter |agency= ignored (help)
Retrieved from "https://en.wikipedia.org/w/index.php?title=1887_Verny_earthquake&oldid=1198585449"