Scientists have discovered that one of the world’s most dangerous volcanoes , Campi Flegrei, a huge caldera near Naples may erupt soon. Geologists have found evidence that magma may be building up inside the volcano, which could blow up soon.
The supervolcano is only a few miles west of Naples, Italy’s third largest city. To the east lies Mount Vesuvius, the famous volcano that destroyed Pompeii and Herculaneum in a massive eruption in 79 A.D.
The last eruption of Campi Flegrei happened in 1538 after a series of earthquakes hit the area. A catastrophic outburst, however, occurred 39,000 years ago when an eruption formed today’s caldera and sent 48 cubic miles of ash and magma into the atmosphere. Geologists fear that a similar eruption could be catastrophic for the 2 million people who live in Naples and the towns around it.
In the last few decades scientists have discovered a hotspot, a zone of magma, that lies about 4 km under the town of Pozzuoli , a few miles away from the supervolcano. They think that this zone of magma has been in motion in the past years but cannot locate in which direction. At the beginning of the 1980s, the surface of the caldera rose by 2 metres but sank again shortly afterwards. This may be a sign of building pressure inside the volcano.
While geologists cannot predict when a major eruption will take place, they are sure that there is activity going on inside Campi Flegrei.
- activity = here: magma that is moving
- ash = soft grey powder that comes from an eruption
- atmosphere = the mixture of gases that is around the Earth
- caldera = a large crater at the top of a volcano; in some cases it is filled with water
- cubic mile = one mile high, long and wide
- decade = ten years
- destroy = to damage something completely so that it no longer exists
- discover = to find out something for the first time
- earthquake = a sudden shaking of the Earth’s surface that often causes a lot of damage and may kill people
- erupt = break out
- evidence = facts that show something is true
- geologist = a person who studies rocks that make up the Earth and the way they have formed
- in motion = moving all the time
- locate = find out where exactly something is
- magma = hot melted rock below the Earth’s surface
- major = important, very large
- massive = great
- predict = say that something will happen
- pressure = weight that is put on something
- occur = happen
- outburst = eruption
- shortly afterwards = a short time later
- similar =like; almost the same
- surface = top part of an object