The sight of newly constructed apartments collapsing in the earthquakes that hit Turkey has sparked anger. The BBC examined three new buildings, turned to rubble, to find out what they reveal about building safety.

Two major earthquakes – measuring 7.8 and 7.5 on the magnitude scale – flattened buildings of all kinds and killed thousands of people across southern Turkey and northern Syria.

But the fact that even some of the newest apartment blocks crumbled to dust has led to urgent questions about building safety standards.

Modern construction techniques should mean buildings can withstand quakes of this magnitude. And regulations following previous disasters in the country were supposed to ensure these protections were built in.

In the first of three new building collapses identified by the BBC, social media footage shows people screaming and running for cover.

The lower half of an apartment block in Malatya is seen crumbling, leaving the remainder standing at an angle over dust and rubble.

The apartments were newly constructed last year, and screenshots have been shared on social media showing an advert saying the building was “completed in compliance with the latest earthquake regulations”.

All materials and workmanship used were “first-class quality”, the advert claimed. While the original advert is no longer available online, screenshots and videos of it circulating on social media match similar adverts by the same company.

The recent construction means it should have been built to the latest standards, updated in 2018, which require structures in earthquake-prone regions to use high-quality concrete reinforced with steel bars. Columns and beams must be distributed to effectively absorb the impact of earthquakes.

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