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Lava

  • What is the Lava? About LavasTowns destroyed, damaged by lava
  • Lava is molten rocks that come out during the volcanic eruption. The volcano is liquid when it first exits from its mouth and its temperature is between 700 ° C and 1200 ° C (1300 ° F and 2200 ° F).

 

  • Although the lava is not very fluid (about 100,000 times more than the fluidity resistance of the water), it can run long distances until it cools and solidifies. The lavas may differ according to the flow types. There are two types of lavas; Aa and pahoehoe. Aa is very dense and forms conical volcanoes. Pahoehoe (pronounced “pahoyhoy“) is very fluid and forms flat volcanoes according to AA. The names Aa and pahoehoe were first used by the Hawaiian natives.

 

  • Towns destroyed by lava flows
  • Kalapana, Hawaii was destroyed by the eruption of the Kīlauea volcano in 1990. (abandoned)
  • Koae and Kapoho, Hawaii were both destroyed by the same eruption of Kīlauea in January, 1960. (abandoned)
  • Keawaiki, Hawaii 1859 (abandoned)
  • San Sebastiano al Vesuvio, Italy Destroyed in 1944 by the most recent eruption of Mount Vesuvius during the Allies occupation of southern Italy. (rebuilt)
  • Cagsawa, Philippines buried by lava erupted from Mayon Volcano in 1814.
  • The Nisga’a villages of Lax Ksiluux and Wii Lax K’abit in northwestern British Columbia, Canada were destroyed by thick lava flows during the eruption of Tseax Cone in the 1700s.

 

 

 

  • Towns damaged by lava flows
  • Catania, Italy, in the eruption of Mount Etna in 1669 (rebuilt)
  • Goma, Democratic Republic of Congo, in the eruption of Nyiragongo in 2002
  • Heimaey, Iceland, in the 1973 Eldfell eruption (rebuilt)
  • Royal Gardens, Hawaii, by the eruption of Kilauea in 1986–87 (abandoned)
  • Parícutin (village after which the volcano was named) and San Juan Parangaricutiro, Mexico, by Parícutin from 1943 to 1952.
  • Sale’aula, Samoa, by eruptions of Mt Matavanu between 1905 and 1911.

 

  • Towns destroyed by tephra
  • Tephra is volcanic ash, lapilli, volcanic bombs or volcanic blocks.
  • Pompeii, Italy in the eruption of Mount Vesuvius in 79 AD
  • Herculaneum, Italy in the eruption of Mount Vesuvius in 79 AD
  • Sumbawa Island, Indonesia in the eruption of Mount Tambora in 1815 AD
  • Cerén, El Salvador in the eruption of Ilopango between 410 and 535 AD
  • Plymouth, Montserrat, in 1995. Plymouth was the capital and only port of entry for
  • Montserrat and had to be completely abandoned, along with over half of the island. It is still the de jure capital.

 

  • The picture at the bottom of the page, type of Pahoehoe lava are shown. Hawaii, USA
Lava
Author: wik Date: 8:55 pm
Geography

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