On February 6, 2023, one of the worst earthquake sequences of the 21st century rocked Turkey and Syria, killing over 59,000 people and displacing many more. It can be hard to imagine the colossal geological forces that produce these disasters, but a new collection of photography from the wake of the disaster manages to illustrate just that.
In the days following the quakes, scientists from the China University of Geosciences, the US Geological Survey, and the Middle East Technical University rushed to eastern Turkey to document the surface deformations caused by the earthquake.
One of their photographs shows how a once-straight railway track became bent with a prominent curve as a result of both ground shaking and liquefaction. Likewise, drone photography of farmland shows how the quakes radically shifted the fields, so much so that rows of crops have become dramatically offset.
When major geological upsets like this happen, soil liquefaction can occur. Strong shaking can disturb the strength and stiffness of the ground’s top layer, causing it to behave like an oozing syrup. This is how we see surface deformations like the bent train track, which defies our everyday perception of “trusty old Earth” being rigid and immutable.
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Using their imagery, the researchers were able to gain an even more detailed idea of
“The surface deformation, together with the geophysical data show that the rupture sequence started slowly on the Africa/Arabia plate boundary, and when the rupture hit the Arabia/Anatolia boundary, it exploded, like a bullet hitting a bomb, and activated the entire East Anatolian fault system, causing the vast destruction,” a
“Lessons learned will help protect other communities in earthquake-prone areas in the future,” it added.
The study is published in the journal