The 1704 - 1705 eruption: This eruption, a typical fissure eruption, occurred through three, clearly distinguishable emission centres: Siete Fuentes, Fasnia and Montaña de Las Arenas, all aligned along a 13-kilometre long fracture.
The Garachico eruption (1706): On the 5th of May, 1706, about 8 kilometres south of the town of Garachico, Montaña Negra came to life in an eruption that lasted nine days. Of all the historical eruptions in Tenerife, this is the only single point one and also, the only one that has caused considerable material damage.
The Chahorra eruption (1798): This is the only historical eruption that has occurred within the boundaries of what is now the Teide national park. The eruption started on the slopes of Pico Viejo, on the 9th of June, 1798 and continued until the 8th of September of the same year. This is the longest-lasting of all the historical eruptions that have happened in Tenerife.
The Chinyero eruption (1909): The last eruption to have occurred in Tenerife was the Chinyero eruption. It started on the 18th of November, lasting 10 days. The original nine mouths of the volcano were later reduced to three main ones.
Image from - http://en.wikipedia.org/wiki/Teide
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