Recent Earthquakes Raise Alarm
In May, a powerful 4.4-magnitude earthquake shook the Phlegraean volcanic fields. It was the strongest quake in 40 years. Over the past six months, more than 3,000 smaller quakes have rattled the region. Clearly, this isn’t random. Scientists believe these tremors are signs of magma shifting beneath the caldera. Although not every quake leads to an eruption, this swarm is far too intense to ignore. Consequently, experts are paying close attention to every new tremor.
