Mag 7.8, 7.5, 6.7 and 6.0 earthquakes and aftershocks in Turkey

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SUMMARY

On February 6, 2023, Turkey experienced a series of devastating earthquakes, including a magnitude 7.8 quake in Central Turkey and a 7.5 quake near Ekinözü. These earthquakes resulted in significant destruction, with the death toll surpassing 19,300 and thousands more injured. The seismic activity occurred along the East Anatolian Fault, with aftershocks continuing to impact the region. The earthquakes have raised concerns about building safety and future seismic activity in the area.

PREREQUISITES
  • Understanding of seismic activity and earthquake measurement (Richter scale)
  • Familiarity with tectonic plate boundaries and fault lines (East Anatolian Fault)
  • Knowledge of earthquake preparedness and response strategies
  • Awareness of the historical context of earthquakes in the region (e.g., 1945 Makran earthquake)
NEXT STEPS
  • Research the geological characteristics of the East Anatolian Fault
  • Study the impact of building codes on earthquake resilience in Turkey
  • Examine historical earthquake data and patterns in the Mediterranean region
  • Explore humanitarian response strategies for earthquake disaster relief
USEFUL FOR

Seismologists, disaster response professionals, urban planners, and anyone interested in earthquake preparedness and recovery efforts in Turkey and the surrounding regions.

  • #31
dlgoff said:
This image ... blows my mind:
The wall shown is blocky, not slick or scarred, so it looks like it failed in tension, not as the surface expression of a vertical shear fault.

What appears to have happened is a solid landslip. A large block of sedimentary rock on a hillside with a similar slope to the bedding, slid down-slope on an incompetent mudstone layer, leaving that precipice as the headwall.

The rock slide event was triggered by the earthquake. The foot of the rock slide is not shown. If the block was wedge shape, then the foot of the slide may be insignificant.
 
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  • #32

M 6.3 - 3 km SSW of Uzunbağ, Turkey​

https://earthquake.usgs.gov/earthquakes/eventpage/us6000jqcn/executive
  • 2023-02-20 17:04:29 (UTC)
  • 36.109°N 36.017°E
  • 16.0 km depth
(CNN) – A magnitude 6.3 aftershock struck southern Turkey on Monday, two weeks after a massive earthquake killed tens of thousands of people in Turkey and Syria.

The quake struck Turkey’s southern Hatay province, near the Syrian border, Turkey’s Disaster and Emergency Management Agency (AFAD) said Monday.

The United States Geological Survey (USGS) initially reported the quake as being of magnitude 6.4 at a depth of 10 kilometers before revising it down to 6.3 magnitude.
https://www.yahoo.com/news/magnitude-6-3-aftershock-rocks-143100286.html

That aftershock was accompanied by two smaller quakes of 4.2 (nearest) and 4.1 (further to the NNE). Further north were a 4.3 mag quake in Kahramanmaras province and a 4.1 mag quake in the mountains of Malatya province.
 

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