San Jorge volcano

The remarkably linear island of San Jorge (Sao Jorge) is 54 km long and only 5 km wide.

Background:

It was formed by fissure-fed eruptions beginning in the eastern part of the island. The western two-thirds of dominantly basaltic San Jorge contains youthful, fissure-fed lava flows resembling those on neighboring Pico Island. Subaerial lava flows issued from three locations above the south-central coast during 1580, producing lava flows that reached the sea. In 1808 a series of explosions took place from vents along the south-central crest of the island; one of these fed a lava flow that also reached the southern coast. Submarine eruptions were reported on several occasions from vents off the southern and SW coasts.
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Source: Smithsonian GVP

San Jorge Photos:

Jorge inspecting the damage to the knocked-down tree. Interestingly, it was not burnt, showing that the block hitting it was not very hot. (Photo: Tom Pfeiffer)