Nicolosi in the context of "Randazzo"

The 1669 eruption of Mount Etna is the largest-recorded historical eruption of that volcano on the east coast of Sicily, Italy. After several weeks of increasing seismic activity that damaged the town of Nicolosi and other settlements, an eruption fissure opened on the southeastern flank of Etna during the night of 10–11 March. Several more fissures became active during 11 March, erupting pyroclastics and tephra that fell over Sicily and accumulated to form the Monti Rossi scoria cone.

Lava disgorged from the eruption fissures and flowed southwards away from the vent, burying farmland and a number of towns during March and April, eventually covering 37–40 square kilometres (14–15 sq mi). The inhabitants of the towns fled to the city of Catania and sought refuge there; religious ceremonies were held in the city to implore the end of the eruption. In early April a branch of the lava flow advanced towards the city, and on the 1 or 16 April it reached the city walls, provoking the flight of many of its inhabitants. The city walls held up the lava, which began to flow into the Ionian Sea. More than two weeks later, parts of the flow surmounted the walls and penetrated Catania but did not cause much damage. The eruption ended in July.

Castiglione di Sicilia (Sicilian: Castigghiuni di Sicilia) is a comune (municipality) in the Metropolitan City of Catania in Sicily, southern Italy. It is one of I Borghi più belli d'Italia ("The most beautiful villages of Italy").

Castiglione di Sicilia lies about 160 kilometres (99 mi) east of Palermo and about 40 kilometres (25 mi) north of Catania. It borders the following municipalities: Adrano, Belpasso, Biancavilla, Bronte, Calatabiano, Francavilla di Sicilia, Gaggi, Graniti, Linguaglossa, Maletto, Malvagna, Mojo Alcantara, Motta Camastra, Nicolosi, Piedimonte Etneo, Randazzo, Roccella Valdemone, Sant'Alfio, Taormina, Zafferana Etnea.

Maletto (Sicilian: Malettu) is a comune (municipality) in the Metropolitan City of Catania in the Italian region Sicily, located about 140 kilometres (87 mi) east of Palermo and about 40 kilometres (25 mi) northwest of Catania.

Maletto borders the following municipalities: Adrano, Belpasso, Biancavilla, Bronte, Castiglione di Sicilia, Nicolosi, Randazzo, Sant'Alfio, Zafferana Etnea. It is an enclave within Bronte and borders the other eight at one point at the top of Mount Etna.

Mascalucia (Sicilian: Mascalucìa) is a comune (municipality) in the Metropolitan City of Catania in the Italian region Sicily, located about 160 kilometres (99 mi) southeast of Palermo and about 6 kilometres (4 mi) north of Catania.

Mascalucia borders the following municipalities: Belpasso, Catania, Gravina di Catania, Nicolosi, Pedara, San Pietro Clarenza, Tremestieri Etneo.It is also the most populated Comune of Catania's province.

Pedara (Sicilian: Pirara) is a comune (municipality) in the Metropolitan City of Catania in the Italian region Sicily, located about 224 kilometres (139 mi) southeast of Palermo and about 11 kilometres (7 mi) north of Catania.

Pedara borders the municipalities of Mascalucia, Nicolosi, San Giovanni la Punta, Trecastagni, Tremestieri Etneo, and Zafferana Etnea.

Saint Alphius (in Italian: Sant'Alfio) or (Sicilian: Sant'Arfiu) is a comune (municipality) in the Metropolitan City of Catania in the Italian region Sicily, about 160 kilometres (99 mi) east of Palermo and about 25 kilometres (16 mi) north of Catania.

Saint Alphius borders the following municipalities: Adrano, Belpasso, Biancavilla, Bronte, Castiglione di Sicilia, Giarre, Linguaglossa, Maletto, Mascali, Milo, Nicolosi, Piedimonte Etneo, Randazzo, Zafferana Etnea.