Central American Field Trip                 Back to Home Page
       This trip complements a lecture on Central American volcanoes in 460:201 Earthquakes and Volcanoes


Volcanoes


Topics


Santiaguito, an erupting volcanic dome


Strombolian eruptions   Pacaya, Arenal

Atitlán-Toliman, caldera


Vulcanian eruptions


Fuego, Plinian eruptions

Plinian eruptions Fuego 1974


Pacaya, Strombolian activity since 1963

Pelean eruptions   Fuego 1974


Back-arc volcanism, cinder cones, shields, etc

Gas eruption   Masaya


Santa Ana & Izalco, the failed hotel

Lava flows   Aa at  Pacaya, block  at Arenal)


Boqueron, "big mouth"

fumaroles


Conchagua, a quiet volcano

crater lakes: Santa Ana, Poás


Cosigüina, 1835 eruption and cooling
Calderas: Atitlán, Coatepeque, Cosigüina

Cerro Negro, erupts after earthquakes


Momtombo, geothermal power


Masaya, gas eruptions


Arenal, 1968-present lava field


Poás, a national park and shield


Irazú, '63-'65 eruption and lahar

 

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Pacaya volcano erupting in 1969 with Fuego (back center)  and Agua (back rhs) behind