Carbon dioxide from Earth’s mantle may trigger some Italian earthquakes

In the Apennines region, spikes in natural CO2 emissions coincide with the biggest tremors

earthquake damage in L’Aquila, Italy

In 2009, a devastating earthquake killed more than 300 people in L’Aquila, Italy (shown). Today, scientists are still figuring out what aggravates seismic activity in the region. New research suggests that carbon dioxide rising from deep within Earth may be involved.

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Italy may owe some of its seismic activity to carbon dioxide bubbling up from deep underground.