 (Source: bittenandbound.com)
Six seismologists and a government official are being tried for manslaughter for not warning citizens before the L'Aquila earthquake
Seismologists and a government official from Italy are being tried for manslaughter after failing to alert citizens of the 2009 L'Aquila earthquake that killed approximately 300 people.
Those being tried are six seismologists and one government official who did not warn citizens of the L'Aquila earthquake in time, which took place on April 6, 2009. The seismologists are responsible for assessing the risk of an earthquake occurring in a certain area.
But according to the accused, it's not that they purposely didn't warn the people; it's that they couldn't predict the earthquake in order to warn them.
"We're not able to predict earthquakes very well at all," said John Vidale, a Washington State seismologist and a professor at the University of Washington. "One problem is we don't know how much stress it takes to break a fault. Second, we still don't know how much stress is down there. All we can do is measure how the ground is deforming."
Obtaining the measurements of actual stresses is very difficult. Researchers have to drill miles into the fault and place sensors down there, but can only drill in certain areas. For instance, drilling on the San Andreas Fault has been done, but no one has actually measured the stress at depth.
While seismologists are presented with many general challenges as far as earthquake prediction goes, seismologists in the L'Aquila region have it real bad. The problem is that many tectonic processes are active in the area. For example, the Adria micro-plate is subducted under the Apennines from east to west. While this is happening, continental collision between the Africa and Eurasia plates is taking place.
In addition, the L'Aquila region's fault system is more difficult than that of San Andreas because the San Andreas has mainly horizontal strike-slip faults while the L'Aquila region has complex, vertical faults.
While many problems in this region prevented the Italian seismologists from predicting the earthquake, some stated that those six seismologists could have seen it coming because of the earthquake swarms that occurred days before the large one hit.
"We get swarms of earthquakes all the time without a big earthquake," said Vidale. "There was nothing strange about this swarm to suggest a big earthquake."
Vidale also mentioned that other popular ways of predicting an earthquake, such as a large amount of radon gas in the atmosphere from faults days before, are "unreliable." No one has been able to predict an earthquake from atmospheric data, or other supposed earthquake prediction methods like animals having odd behavior.
However, scientists are studying data on past earthquakes as a way of predicting when future earthquakes will occur, but again, this is not a solid system either.
Vidale is offended that these seismologists and the government official are being tried for manslaughter when they couldn't help what happened, and noted that they are "being charged with a crime for telling the truth," and that truth was that there was no evidence pointing to the fact that the upcoming event was dangerous enough to warn the public.
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