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The earthquakes in Marche and Emilia Romagna can be induced by human activities for thehydrocarbon extraction in the Adriatic Sea, as some users are shouting on social media? Without going around too much, experts rule it out. Here because.
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The shock
In the morning of November 9, 2022at 7.07 to be precise, the seismographs recorded a strong shock of earthquake in the Marches, which it has achieved magnitude MI 5.7. According to the National Institute of Geophysics and Volcanology (Ingv) theepicenter is located in the sea, a 30 kilometers about away from the Marche coast of the province of Pesaro-Urbino, to one depth of 7-8 kilometers. The shock was strong, felt distinctly in Fano and Pesaro, but also in alarge area of central-northern Italy. Dozens of other shocks followed aftershockwhich will likely go on for days continuing to drain energy.
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A compressive earthquake
“The earthquake this morning has all typical characteristics of a natural earthquake of the Adriatic coast area “explained to Wired.it Carlo Meletti of the National Institute of Geophysics and Volcanology (Ingv). We are talking about one well-known seismic zonein which earthquakes of similar intensity, sometimes even higher than today, have already been recorded in the past. “In this area – explains the expert – the most advanced portion ofApennines overlaps the Adriatic plate: a zone of convergence in which two plates overlap each other giving rise to compressive earthquakes“.
It is an earthquake similar to that of Rimini in the 1916from Senigallia in the 1930 (at the time the main shock reached magnitude 5.8 and it was the most significant earthquake on the northern coast of the Marche in the twentieth century),Emilia in the 2012. “Completely different from the one in 2016 that destroyed L’Aquila”explains Meletti. “That was an earthquake due to extensional mechanisms, which occur when two plates move away from each other”.
Because drills are not involved
“There depth of the epicenter and theintensity of the shock principal they do not agree with those of an earthquake induced by anthropogenic activities for the extraction and storage of hydrocarbons at sea, as far as we have seen so far at an international level “confirmation Piero Farabollini, president of the Order of Geologists of the Marches. In fact, there are no technologies that allow us to reach depths similar to that of the epicenter of the shock of the Marche coast. “Although induced seismicity exists – and, more than for new perforations, for storage, that is the introduction of material into the old perforations -“, Farabollini adds, “the intensity of the tremors caused by human activities generally does not reach magnitudes greater than 3-4, weaker than the tremors recorded today in Italy”.
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