Mauna Loa - Wikipedia, the free encyclopedia - The Diigo Meta page

• 12 Jul 12
  

  G R
  • Mauna Loa ( /ˌmɔːnə ˈloʊ.ə/ or /ˌmaʊnə ˈloʊ.ə/; Hawaiian: [ˈmɔunə ˈlowə]) is one of five volcanoes that form the Island of Hawaii in the U.S. state of Hawaiʻi in the Pacific Ocean, and the largest on Earth in terms of volume and area covered.
  • The Hawaiian name "Mauna Loa" means "Long Mountain".
  • Mauna Loa is the world's largest shield volcano in terms of area covered.
  • Mokuʻāweoweo is the summit crater (caldera) of Mauna Loa.
  • Historically very active, Mokuʻāweoweo has been quiet since 1984.
  • The name of the summit crater is derived from the ʻāweoweo, a red Hawaiian big-eyed fish, Priacanthus meeki, purportedly due to resemblance of the eruptive fires to the color of the fish.
  • Archibald Menzies led a party from the Vancouver Expedition in the first successful ascent to Mokuʻāweoweo with a written record.
  • An eruption in 1935 that headed toward the city of Hilo led to an unusual employment of air power. Five bombers of the 23d and 72d Bombardment Squadrons of the United States Air Force dropped bombs in the path of the lava in order to divert it away from Hilo.
  • The main volcanic hazard at Mauna Loa is lava flows.

  7 more annotations...

• 16 Nov 11
  

  Helena Nocentino
  • eruptions in 1926 and 1950 destroyed villages
  • Mauna Loa is an intensively monitored volcano
  • Hawaiian Volcano Observatory (HVO) was established in 1912 to observe the Hawaiian volcanoes
  • has developed many techniques to help predict when eruptions at Mauna Loa and other volcanoes are imminent.
  • More than 60 seismometers around the Big Island
  • important tools is seismometry
  • both preceded by one to two years of increased seismic activity at depths of less than 8 miles
  • harmonic tremor is a continuous "rumble" which contrasts with the normal seismic activity of sudden shocks and is believed to be caused by the rapid movement of magma underground
  • Another type of seismic activity occurs in the hours preceding an eruption
  • may also be caused by shallow intrusions of magma which do not reach the surface.
  • 

  9 more annotations...

• 14 Jan 08
  

  whiteknoll

  fifthgrade landforms science volcano

  • Mauna Loa is the 2nd largest volcano on earth
  • Although native  Hawaiians have witnessed eruptions for many centuries, written records exist  only for eruptions that have occurred since the early 1800s

Would you like to comment?

Join Diigo for a free account, or sign in if you are already a member.