1931 Zangezur earthquake

Coordinates: 39°17′N 45°57′E / 39.29°N 45.95°E / 39.29; 45.95
Source: Wikipedia, the free encyclopedia.
1931 Zangezur earthquake
1931 Zangezur earthquake is located in Armenia
1931 Zangezur earthquake
UTC time1931-04-27 16:50:45
ISC event906750
USGS-ANSSComCat
Local dateApril 27, 1931 (1931-04-27)
Local time20:50:45
Magnitude6.5 Mw [1]
Depth15 km (9.3 mi) [1]
Epicenter39°17′N 45°57′E / 39.29°N 45.95°E / 39.29; 45.95 [1]
Areas affectedArmenia
Azerbaijan
Max. intensityMSK-64 IX (Destructive)
Casualties390–2,890 deaths [2]

The 1931 Zangezur earthquake occurred on April 27 at 20:50:45 local time with a moment magnitude of 6.5. The earthquake was located in the

Nakhichivan Autonomous Republic. Both territories were part of the Soviet Union at that time.[3]

Tectonic setting

The Pambak-Sevan-Sunik Fault extends in the NW–SE direction. The fault can be traced continuously for 400 km and consists of four major segments. The 1931 Zangezur earthquake was located in the area of the Sunik-Zanghezour segment, which is about 120 km long.[4] The fault was also the source of the magnitude 7.5+ 1139 Ganja earthquake; the largest and most destructive seismic event in the Caucasus.[5]

Earthquake

The earthquake was located near the border between the

Tatev Monastery was damaged. The MSK-64 intensity reached IX (Destructive) in Shamb and VIII (Damaging) in Jougha.[8] The Museum of History in Sisian has some photos taken after the town was hit by the earthquake.[9]

Previous seismicity

There was a period of increased earthquake activity in Armenia and its neighboring republics between 1911 and 1956 and the 1931 event was one of the strongest. It released about half of the total energy of all the earthquakes occurring in the Caucasus region near the Caspian Sea in that period.[10]

See also

References

  1. ^ a b c ISC (2015), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009), Version 2.0, International Seismological Centre
  2. ^ USGS (September 4, 2009), PAGER-CAT Earthquake Catalog, Version 2008_06.1, United States Geological Survey
  3. ^
    doi:10.7289/V5TD9V7K
  4. doi:10.1016/S0040-1951(01)00258-X
    .
  5. hdl:1854/LU-8655179
    .
  6. ^ USGS, Today in Earthquake History, United States Geological Survey
  7. ^ http://gsi.ir/General/Lang_en/Page_29/TypeId_/DataId_128/Action_Pn4/WebsiteId_13/Twentieth.Century.Seismicity.of.Maku.Region[permanent dead link]. (1900.1977).html
  8. doi:10.4401/ag-3335
  9. ISBN 9781741044775
    .
  10. ^ "On the periodicity of seismic activity during the last one and a half to two thousand years (based on the example of Armenia)" by G. P. Tamrazyan

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=1931_Zangezur_earthquake&oldid=1213120519"