Turkey earthquakes: Did Google’s early warning system work? - BBC Newsnight

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At 4.17am on 6 February a 7.8 magnitude earthquake rocked Turkey. In the days that followed, 50,000 people were killed.

But what's been barely reported is that Google was operating an earthquake early warning system in the country. The company claims it sent out millions of warnings before the quake hit.

But BBC teams in Turkey and Silicon Valley can't find evidence that this warning was widely received by people in the earthquake zone.

In this special report for BBC Newsnight, Anna Foster is in Turkey and James Clayton is in San Francisco.