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Ecuador · Stratovolcano

Pichincha Volcano

Guagua Pichincha

Type
Stratovolcano
Elevation
4784m
Last eruption
2002
Pichincha Volcano
Photo: Timwryan · CC BY-SA 3.0 · Wikimedia Commons
Type
Stratovolcano
Country
Ecuador
Region
South America / Northern Andean Volcanic Arc
Elevation
4784m
Coordinates
-0.171, -78.598
Last eruption
2002
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite
Geological summary

Guagua Pichincha and the older Pleistocene Rucu Pichincha stratovolcanoes form a broad volcanic massif that rises immediately W of Ecuador's capital city, Quito. A lava dome grew at the head of a 6-km-wide scarp formed during a late-Pleistocene slope failure ~50,000 years ago. Subsequent late-Pleistocene and Holocene eruptions from the central vent consisted of explosive activity with pyroclastic flows accompanied by periodic growth and destruction of the lava dome. Many minor eruptions have been recorded since the mid-1500's; the largest took place in 1660, when ash fell over a 1,000 km radius and accumulated to 30 cm depth in Quito. Pyroclastic flows and surges also occurred, primarily to then W, and affected agricultural activity.

From Wikipedia

Pichincha is a stratovolcano in Ecuador. The capital Quito wraps around its eastern slopes.

Wikipedia · CC BY-SA · Read full article →

Eruption history

44 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
7000 BCE~6700 BCE · 1 eruptions · max VEI ?6700 BCE~6399 BCE · 2 eruptions · max VEI ?6399 BCE~6099 BCE · 2 eruptions · max VEI ?4898 BCE~4598 BCE · 1 eruptions · max VEI ?3697 BCE~3396 BCE · 1 eruptions · max VEI ?2195 BCE~1895 BCE · 1 eruptions · max VEI ?1895 BCE~1595 BCE · 1 eruptions · max VEI ?1294 BCE~994 BCE · 1 eruptions · max VEI ?93 BCE~207 · 1 eruptions · max VEI 4508~808 · 1 eruptions · max VEI ?808~1108 · 1 eruptions · max VEI 51408~1709 · 12 eruptions · max VEI 41709~2009 · 19 eruptions · max VEI 37000 BCE4898 BCE2495 BCE393 BCE1709

Detailed timeline

  1. 2009VEI 1Method not stated
    2009-02-16 – 2009-02-17
  2. 2008VEI 1Method not stated
    2008-02-01 – 2008-02-01
  3. 2003VEI 1Method not stated
    2003-04-17 – 2003-04-17
  4. 2002VEI 1Observed
    2002-04-16 – 2002-04-16
  5. 2002VEI 1Observed
    2002-10-11 – 2002-12-07
  6. 2001VEI 1Observed
    2001-11-26 – 2001-11-26
    North of 1981 crater
  7. 1998VEI 3Observed
    1998-08-07 – 2001-05-25
    West and SE of 1981 crater
  8. 1997VEI 1Observed
    1997-03-16 – 1997-10-18
    1981 crater
  9. 1993VEI 1Observed
    1993-03-09 – 1993-03-12
    1981 crater
  10. 1990VEI 1Observed
    1990-04-16 – 1990-05-10
    1981 crater
  11. 1985VEI 1Observed
    1985-05-16 – 1985-06-16
    1981 crater
  12. 1981VEI 1Observed
    1981-08-31 – 1982-11-16
    NE side of 1660 lava dome
  13. 1881VEI 2Observed
    1881-03-10 – end unknown
  14. 1869VEI 2Observed
    1869-03-16 – end unknown
  15. 1869VEI 2Observed
    1869-07-22 – 1869-08-24
  16. 1868VEI 2Observed
    1868-03-19 – 1868-03-22
  17. 1868VEI 2Observed
    1868-08-16 – end unknown
  18. 1831VEI 3Observed
    1831-07-02 – end unknown
  19. 1830VEI 2Observed
    1830-07-02 – end unknown
  20. 1660VEI 4Observed
    1660-10-27 – 1660-11-28
  21. 1582VEI 3Observed
    1582-06-05 – 1598
  22. 1580VEI 2Method not stated
    1580 – end unknown
  23. 1577VEI 2Method not stated
    1577 – end unknown
  24. 1575VEI 2Observed
    1575-09-08 – end unknown
  25. 1566VEI 3Observed
    1566-10-17 – 1566-11-16
  26. 1560VEI 2Method not stated
    1560 – end unknown
  27. 1539VEI 2Method not stated
    1539 – end unknown
  28. 1538VEI 3Method not stated
    1538 – end unknown
  29. 1535VEI 2Method not stated
    1535 – end unknown
  30. 1534VEI 2Method not stated
    1534 – end unknown
  31. 1533VEI 2Method not stated
    1533 – end unknown
  32. 930 (±100 yrs)VEI 5Geological estimate
    930 – end unknown
  33. 550 (±75 yrs)VEI ?Geological estimate
    550 – end unknown
  34. 70 (±75 yrs)VEI 4Geological estimate
    70 – end unknown
  35. 1230 BCE (±75 yrs)VEI ?Geological estimate
    1230 BCE – end unknown
  36. 1860 BCE (±100 yrs)VEI ?Geological estimate
    1860 BCE – end unknown
  37. 2090 BCE (±75 yrs)VEI ?Geological estimate
    2090 BCE – end unknown
  38. 3500 BCEVEI ?Geological estimate
    3500 BCE – end unknown
  39. 4850 BCE (±1350 yrs)VEI ?Geological estimate
    4850 BCE – end unknown
  40. 6200 BCEVEI ?Geological estimate
    6200 BCE – end unknown
  41. 6300 BCEVEI ?Geological estimate
    6300 BCE – end unknown
  42. 6400 BCEVEI ?Geological estimate
    6400 BCE – end unknown
  43. 6650 BCEVEI ?Geological estimate
    6650 BCE – end unknown
  44. 7000 BCEVEI ?Geological estimate
    7000 BCE – end unknown

Nearby volcanoes

External links

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