Scientists Convicted of Not Predicting Earthquake

The infamous L’Aquila earthquake trial is over, and it turns out that in Italy you can be convicted of manslaughter for not predicting an earthquake:

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. It took Judge Marco Billi slightly more than four hours to reach the verdict in the trial, which had begun in September 2011.

As bad as this sounds, it’s actually even worse. Prior to the L’Aquila quake, there had been a series of small tremors, prompting a local lab technician to issue several incorrect predictions of a large earthquake on Italian television. Residents were nervous, so a committee of seismologists was convened to assess the risk of a bigger quake. Here’s what they concluded:

The minutes of the 31 March meeting [] reveal that at no point did any of the scientists say that there was “no danger” of a big quake. “A major earthquake in the area is unlikely but cannot be ruled out,” Boschi said. Selvaggi is quoted as saying that “in recent times some recent earthquakes have been preceded by minor shocks days or weeks beforehand, but on the other hand many seismic swarms did not result in a major event”. Eva added that “because L’Aquila is in a high-risk zone it is impossible to say with certainty that there will be no large earthquake”. Summing up the meeting, Barberi said, “there is no reason to believe that a swarm of minor events is a sure predictor of a major shock”. All the participants agreed that buildings in the area should be monitored urgently, to assess their capacity to sustain a major shock.

So what’s the conviction based on? This:

The prosecution has focused on a statement made at the press conference by accused committee member Bernardo De Bernardinis, who was then deputy technical head of Italy’s Civil Protection Agency. “The scientific community tells me there is no danger,” he said at the time, “because there is an ongoing discharge of energy. The situation looks favourable.”

Many seismologists — including one of the accused, Enzo Boschi, president of the National Institute of Geophysics and Vulcanology in Rome — have since criticized the statement as scientifically unfounded. The statement does not appear in the minutes of the committee meeting itself, and the accused seismologists say they cannot be blamed for it. De Bernardinis’s advocate insists that his client merely summarized what the scientists had told him. The prosecutor claims that because none of the other committee members immediately corrected De Bernardinis, they are all equally culpable.

Even if you think De Bernardinis was culpable in some way, it’s beyond belief that six scientists were convicted merely for not immediately disagreeing with him. This is a sad day in Italian justice, and it’s going to be a long time before any qualified scientist is willing to say anything ever again about earthquake safety.


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