22 October 2012 Last updated at 15:06 ET
The BBC’s Alan Johnston in Rome says the prosecution argued that the scientists were “just too reassuring”
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Six Italian scientists and an ex-government official have been sentenced to six years in prison over the 2009 deadly earthquake in L’Aquila.
A regional court found them guilty of multiple manslaughter.
Prosecutors said the defendants gave a falsely reassuring statement before the quake, while the defence maintained there was no way to predict major quakes.
The 6.3 magnitude quake devastated the city and killed 309 people.
Many smaller tremors had rattled the area in the months before the quake that destroyed much of the historic centre.
It took Judge Marco Billi slightly more than four hours to reach the verdict in the trial, which had begun in September 2011.