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"We are shaped by our thoughts; we become what we think. When the mind is pure, joy follows like a shadow that never leaves."
Italy's worst earthquake in 30 years has added to cracks in Rome's Colosseum, it has emerged.
Officials say the 6.6-magnitude tremor that struck in central Italy on Sunday morning had put extra strain on the capital's 2,000-year-old arena.
It comes as it emerged that a dormant volcano 12 miles south of the Eternal city may be reawakening after experts found signs of activity deep below the surface.
Scientists say magma has started building up about five miles below the surface prompting fears the Alban Hills is reactivating while the ground is reportedly rising by 3mm a year.
However, an eruption is not imminent and would not take place for about a thousand years, according to experts from the National Institute of Geophysics and Vulcanology and La Sapienza University, the Telegraph reports.
Alban Hills volcano forms a prominent feature on the southern skyline of Rome. The volcano is seismically active, with several notable earthquake swarms since the early 1980's. Currently the western sector of the volcano is experiencing seismic swarms and a local uplift over a 6 km radius around the Albano maar.
Alban Hills volcano is part of the Roman volcanic potassic province that extends on the Tyrrhenian back-arc zone from southern Tuscany to Campania.
The most important structure of the volcano is the 8×8 km wide central caldera. The caldera is a horseshoe-shaped volcano-tectonic structure, related to eruptions from 561,000 to 355,000 years ago. The most recent eruptions occurred at Albano maar (Lago Albano).
Volcanic activity began 700,000 years ago with the emission of more than 150 cubic km of of mostly pyroclastic flows from a central cone. The caldera formed by repeated magma chamber collapses at the end of this phase 400,000 years ago. Eruptions which began inside the caldera built a second central cone eruptingboth lavas and pyroclastic flows. The most recent eruptions consisted of phreato-magmatic explosions from several eccentric cones in the western side of the volcano that created craters, which are occupied by Albano Lake, and Nemi Lake.
Understanding whether the Alban Hills is an extinct volcano or is undergoing renewed activity is important for the city of Rome. Recent discoveries of Holocene phreatomagmatic and lahar deposits indicate that the volcano is still active, although currently quiet.
Examination of deposits have dated the four most recent eruptions to two temporal peaks, around 36,000 and 39,000 years ago. The area exhibits small localised earthquake swarms, bradyseism, and release of carbon dioxide and hydrogen sulfide into the atmosphere. The uplift and earthquake swarms have been interpreted as caused by a slowly growing spherical magma chamber 5-6 kilometres below the surface; some think that it may erupt again; if so, there is risk to Rome, which is only 25 to 30 km away.
There is documentary evidence of an eruption in 114 BC, but the absence of holocene geological deposits has largely discredited it as a volcanic event and instead the account is considered to be a description of a forest fire.