El Misti Volcano | John Seach

john

Peru

16.294 S, 71.409 W
summit elevation 5822 m
stratovolcano
 
El misti volcano is located 16 km NE of Arequipa, the second largest city in Peru. The volcano has two concentric summit craters defining a somma. The outer crater has a diameter of 830 m, and contains a 450 m diameter scoria cone.

There were 5 minor eruptions of El Misti Volcano in 20th Century. The most recent eruptions from Misti were mainly pyroclastic. The upper flanks are covered in dark air-fall deposits, which came from the summit scoria cone.

There have been 14 explosive eruptions at El Misti volcano over the past 14,000 years.

1997 Fumaroles
In December 1997 fumaroles were mesured with a temperature of 220 deg C at the lava plug of El Misti volcano.

1984-85 Emissions
At the beginning of April 1984 there was an increase in emissions from the crater at El Misti volcano. The plume rose 1 km above the crater. On 29th April observers at the crater suffered from gas irritation to eyes, nose, and throat.

1971 Emissions
Emissions occurred from the cratrer at El Misti volcano.

1949 Fumaroles
Fumarolic activity resumed at the crater in 1949.

310 BC Eruption
A sub-Plinian eruption occurred at El Misti volcano between 2300–2050 years ago. Pumice fell over 25 km from the vent, and was 30 cm thick, 13 km southwest of
the volcano.

El Misti Volcano Eruptions

1870?, 1869?, 1831?, 1830?, 1826?, 1787, 1784, 1677, 1599?, 1542?, 1454 ± 16, 1350 ± 50, 760 AD ± 100, 90 AD ± 300, 80 BC ± 75, 310 BC ± 100, 2230 BC ± 200, 3510 BC ± 150, 4020 BC ± 200, 5390 BC ± 75, 7190 BC ± 150