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Ecuador · Shield volcano

Cerro Azul

Azul, Cerro

Type
Shield volcano
Elevation
1640m
Last eruption
2008
Cerro Azul
Photo: Tom Simkin (Smithsonian Institution) · Public domain · Wikimedia Commons
Type
Shield volcano
Country
Ecuador
Region
Eastern Pacific / Galapagos Hotspot Volcano Group
Elevation
1640m
Coordinates
-0.920, -91.408
Last eruption
2008
Tectonic setting
Rift zone / Oceanic crust (< 15 km)
Landform
Shield
Major rock type
Basalt / Picro-basalt

Geological summary

Located at the SW tip of the J-shaped Isabela Island, Cerro Azul contains a steep-walled 4 x 5 km nested summit caldera complex that is one of the smallest diameter, but at 650 m one of the deepest in the Galápagos Islands.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →

From Wikipedia

Cerro Azul 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. The volcano is one of the most active in the Galapagos, with the last eruption between May and June 2008.

Wikipedia · CC BY-SA · Read full article →

Eruption history

15 recordedGlossary

Record summary

Confirmed eruptions
14
Uncertain eruptions
1
Span of confirmed record
950 BCE (±900 yrs) – 2008
Largest confirmed eruption
VEI 3 (1943)
Confirmed eruptions since 1900
10
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
950 BCE~753 BCE · 1 eruptions · max VEI 0556 BCE~358 BCE · 1 eruptions · max VEI 01219~1416 · 1 eruptions · max VEI 01811~2008 · 12 eruptions · max VEI 3950 BCE161 BCE43012191811

Detailed timeline

  1. 2008VEI 1Observed
    2008-05-29 – 2008-06-17
    Summit and SE flank
  2. 1998VEI 1Observed
    1998-09-15 – 1998-10-21
    N & W caldera floor, SE flank (630-680 m)
  3. 1979VEI 2Observed
    1979-01-29 – 1979-03-04
    East flank (300 m) and summit
  4. 1968VEI ?Method not stated
    1968-06-12 – end unknown
    North flank?
  5. 1959VEI 2Observed
    1959-06-29 – 1959-07-31
    East flank
  6. 1951VEI ?Observed
    1951-07-02 – end unknown
  7. 1949VEI 0Observed
    1949-07-02 – end unknown
  8. 1948VEI 0Observed
    1948-06-30 – end unknown
  9. 1943VEI 3Observed
    1943-04-13 – 1943-05-11
    Caldera ring fracture
  10. 1940VEI 0Observed
    1940-07-02 – end unknown
    East flank (Cerro de Las Animas)
  11. 1932VEI 1Observed
    1932-07-02 – end unknown
  12. 1850VEI ?Geological estimate
    1850-07-02 – end unknown
  13. 1250VEI 0Geological estimate
    1250 – end unknown
  14. 550 BCE (±1300 yrs)VEI 0Geological estimate
    550 BCE – end unknown
  15. 950 BCE (±900 yrs)VEI 0Geological estimate
    950 BCE – end unknown

Nearby volcanoes

External links

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