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Isabela Island is the largest of the Galápagos Islands, with an area of 4,586 km 2 (1,771 sq mi) [9] and a length of 100 km (62 mi). Almost four times larger than Santa Cruz , the second largest of the archipelago, Isabela is larger than every other island in the Galápagos combined.
The islands are found at the coordinates 1°40'N–1°36'S, 89°16'–92°01'W. Straddling the equator, islands in the chain are located in both the northern and southern hemispheres, with Volcán Wolf and Volcán Ecuador on Isla Isabela being directly on the equator.
Volcán Ecuador is the only volcano on Isabela Island not known to have erupted in historical times. However, the geomorphology of its youngest lava flows is comparable to those of very recent lava flows from other volcanoes on Isabela Island. Like Volcán Wolf to the east, Volcán Ecuador straddles the equator. [1]
Cerro Azul (Spanish: Blue Hill) is a shield volcano on the south western part of Isabela Island in the Galápagos Islands.At a height of 1,689 m (5,541 ft) it is the second highest peak in the Galapagos and due to its topographic prominence of over 1,500 m (4,921 ft) it is categorised as an ultra. [1]
The Sierra Negra like the other volcanoes on Isabela is believed to have been created from a mantle plume which has created the hotspot.The age of Sierra Negra and the other volcanoes on Isabela is hard to determine as they are in a north–south line to the east of the hotspot, which is believed to be under Fernandina volcano, and the Nazca Plate is moving east.
Isabela Canton is a canton of Galápagos Province, Ecuador, consisting of the islands of Isabela Island, Darwin, Fernandina, Wolf, and some minor islets. Isabela is the largest island in the Galápagos , and well known for its beaches, bays and coastal lagoons with a wide variety of plants and birds.
It is situated on Isabela Island and reaches 1,710 m (5,610 ft). It is a shield volcano with a characteristic upturned soup bowl shape. The volcano was named after Theodor Wolf, a German geologist who studied the Galápagos Islands in the 19th century. Wolf Island in the north of the Galápagos is also named after the geologist.
Fernandina Island (formerly known in English as Narborough Island, after John Narborough), is the third-largest, and youngest, island of the Galápagos Islands. Like the others, the island was formed by the Galápagos hotspot. The island has an active shield volcano, named La Cumbre, whose last eruption was on 15 May 2024. [15]