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Nissyros
It is suspected that the volcano erupted in 1422. In 1871, earthquakes, detonations, and red and yellow flames accompanied an eruption. Ash and lava erupted and covered the floor of Rammos, destroying the fruit gardens there. During a three-day-long eruption in 1873, a 20-25 foot (6-7 m) diameter crater formed and ash and blackish mud was ejected. The bottom of Lakki and Ramos was transformed into a lake by hot saline water that overflowed the crater. The most recent eruption was in 1888. This strong eruption threw out a cylindrical pipe of volcanic material at least 80 feet (25 m) in diameter. Mud, lava, and steam were also ejected. In 1956, fumes were observed along the west and south sides of Rammos.
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The
island of Nissyros is a volcano, located at the eastern end of the
Hellenic island arc in the Dodecanese. This arc of volcanoes is
related to the northward section of the African plate beneath the
Aegean micro plate. Santorini, a better-known volcano, is west of
Nisyros the base of the island is made of hyaloclastite, lava flows,
and breccias, mostly of andesine composition. Pyroclastic deposits
and volcanic domes of dacite composition cap these rocks. The
pyroclastic deposits are related to two explosive erruptions of the
volcano. The volume of magma erupted was great enough to cause the
summit of the volcano to collapse, making a crater (caldera).
The
two explosive erruptions were probably several thousand years apart
and occurred roughly 25,000 years ago. After the crater formed,
eruptions produced the lava domes. - RAM UNIVERSAL STUDIOS -