Mount Ontake, Japan 9/29/14 Pyroclastic cloud Mount Ontake 9-28-14.

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Presentation transcript:

Mount Ontake, Japan 9/29/14

Pyroclastic cloud Mount Ontake

Mount Sinabung Indonesia 2014

Mount Sinabung (Philippines) 2014

Pyroclastic cloud Mt. Sinabung (Indonesia 2014)

composite volcano in Guatemala.

“collapse caldera” (Poas Volcan, Costa Rica)

Montserrate with a pyroclastic cloud

Montserrat volcano, Caribbean and pyroclastic clouds

Crater Lake (caldera) Wizard Island (cinder cone)

Merapi volcano May 14, 2006 Indonesia

Pyroclastic cloud on Mt. Merapi May 14,2006

Lava dome (Mt. Merapi) and lava flow

Pyroclastic cloud of Mt. Pinatubo chasing a truck

Irazu (composite volcano) Costa Rica

Irazu volcano, (composite volcano) alternating lava layers and acidic water in the crater

Cinder cone volcano

700 foot Cinder cone volcano (northern California)

Students climbing a cinder cone volcano

Mount St.Helens before 1980

North side (Mt. St. Helens) Dec.2005

Students climbing Mt. St. Helens

summit of Mt. St. Helens (composite volcano)

Volcanic ash on the summit of Mt. St Helens

Mt. St. Helens building dome

Lava dome inside the caldera of Mount St. Helen (2004)

Shield volcano in Iceland (1974)

alternating layers of pasty and fluid lava (Mt. St. Helens)

Rising rock mass in the crater of Mt.St. Helens (April 2006)

Crater and active vent of Ertaale volcano (Ethiopia)

“lava coil” in pahoehoe lava

pasty ‘aa’ lava flow

Lava blister caused by escaping gases

Yellow sulfur and white acids

Mount Pinatubo (Philippines) ejects 5,000 tons of sulfur dioxide each day

Lava fountains in the rift of Kilauea (white lava 1150 degrees C. and the yellow lava 1090 degrees C.)

volcanic lightning

Son of Krakatoa (cinder cone) east side of the Indian Ocean

Tsunami similar to the waves produced by Krakatoa

Mount Etna a composite volcano (Sicily)

Views of Mount Etna’s eruption

Aniakchak explosion caldera (Alaska)

Pahoehoe lava covering a national park road in Hawaii.

“aa” lava “aa” lava

pahoehoe lava (Hawaii)

pillow lava (Hawaii)

Mount Mageik (Alaska) composite volcano

Lahar produced by the Santiaquito volcano (Guatemala)

shield volcano shield volcano

Pahoehoe lava (Hawaii)

Volcanic ash

fumarole covered with sulfur

House consumed by lava (Hawaii).

Portable house for volcanic regions

Pyroclastic cloud of ash, cinder and burning gases moving at 50 mph

blocks of pumice of a pyroclastic flow

Lava surrounds a house (Hawaii)

Augustine (composite volcano) Alaska

lava fountain and pyroclastic debris from Kilauea volcano