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All About Volcanoes and Volcanic Eruptions

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Learn more about volcanoes- interesting facts about these vents, and what to do before, during, and after volcanic eruptions. Spread awareness and be prepared.

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All About Volcanoes and Volcanic Eruptions

  1. 1. DENICE MILLEN CANILAO MAKATI SCIENCE HIGH SCHOOL VOLCANOES
  2. 2. Three Kinds Of Volcanoes Shield Volcanoes Composite Volcanoes Cinder Cone Volcanoes
  3. 3. Shield Volcanoes can be hundreds of miles across and many tens of thousands of feet high, have low slopes and consist almost entirely of frozen lavas EFFUSIVE ERUPTIONS they almost always have large craters at their summits the individual islands of Hawaii are simply large shield volcanoes
  4. 4. Mauna Loa, Hawaii
  5. 5. Composite Volcanoestypically measure tens of miles across and ten thousand or more feet in height Effusive and explosive eruptions they have moderately steep sides and sometimes have small craters in their summits they are called composite because they consist of layers of solid lava flows mixed with cinders (volcanic ash)
  6. 6. Mt. Nyiragongo, Democratic Republic of Congo
  7. 7. Cinder Cone Volcanoes small volcanoes, usually only about a mile across andup to about a thousand feet high Explosive eruptions consist almost entirely of loose, grainy cinders and almost no lava they have very steep sides and usually have a small crater on top
  8. 8. Wizard Island, Oregon
  9. 9. INTERESTING FACTS ABOUT VOLCANOES
  10. 10. There are likely about 20 volcanoes erupting right now. ¾ of all eruptions happen underneath the ocean, and no geologist knows about THOSE at all
  11. 11. MT.  PARICUTIN,  MEXICO   A VOLCANO BORN OVERNIGHT- LITERALLY (1943) Within hours, the ground started coughing up sulfur and ash. 
  12. 12. The Maleo is a highly endangered species that relies on geothermal energy from volcanoes to incubate its eggs. 
  13. 13. The farthest point from the center of the Earth: Mt Chimborazo in Ecuador
  14. 14. Ol Doinyo Lengai erupts “black lava.” Geologists often compare this lava to something you might find on another planet. IT is significantly cooler than ordinary lava —about 540 °C (1,000 °F). 
  15. 15. VOLCANic ERUPTIONS
  16. 16. SIGNS OF AN IMPENDING VOLCANIC ERUPTION
  17. 17. What do we notice before an eruption? Volcanic quakes CRATER GLOW STEAMING ACTIVITY GROUND SWELLS GROUND TILT LANDSLIDES DRYING UP VEGETATION DRYING UP OF SPRINGS DRYING UP OF WELLS INCREASE IN TEMPERATURE OF HOT SPRINGS DEVELOPMENT OF NEW THERMAL AREAS VARIATION IN CHEMICAL CONTENT OF WATER BODIES
  18. 18. DISASTER READINESS AND RISK REDUCTION What to Do Before, During, and After a Volcanic Eruption
  19. 19. Before an Eruption 1.  Make an emergency survival kit. 2.  Make an evacuation plan. 3.  Make a family emergency plan.
  20. 20. During an Eruption 1.  Stay calm 2.  Stay out of danger zone 3.  In case of injuries, do proper first aid. Seek medical attention if necessary
  21. 21. AFTER 1.  GO TO A DESIGNATED PUBLIC SHELTER. 2.  CHECK FOR Official news and instructions as they become available. an Eruption
  22. 22. REFERENCES:   10  Interes7ng  Facts  About  Volcanoes.  (2015,  March  5).  Retrieved  January  15,  2018,   from  hNp://www.universetoday.com/32185/10-­‐interes7ng-­‐facts-­‐about-­‐volcanoes/     The  Dynamic  Earth  @  Na7onal  Museum  of  Natural  History.  (n.d.).  Retrieved  January   15,  2018,  from  hNp://www.mnh.si.edu/earth/text/4_0_0.html   Exploring  the  Environment:  Volcanoes  –  Types  of  Volcanoes  (n.d.).  Retrieved  January   16,  2018,  from  hNp://www.co].edu/ete/modules/volcanoes/vtypesvolcan1.html   Fun  Volcano  Facts  for  Kids  -­‐  Interes7ng  Facts  about  Volcanoes.  (n.d.).  Retrieved   January  16,  2018,  from  hNp://www.sciencekids.co.nz/sciencefacts/earth/volcano.html   Pedicure  Slideshow:  Your  Guide  to  a  Perfect  Pedicure.  (n.d.).  Retrieved  January  16,   2018,  from  hNp://www.webmd.com/beauty/nails/ss/slideshow-­‐pedicure      

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