Download
geology of costa rica n.
Skip this Video
Loading SlideShow in 5 Seconds..
Geology of Costa Rica PowerPoint Presentation
Download Presentation
Geology of Costa Rica

Geology of Costa Rica

178 Vues Download Presentation
Télécharger la présentation

Geology of Costa Rica

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Geology of Costa Rica

  2. Geologic Hazards • Earthquakes • Tsunami • Volcanism • Slope Hazards

  3. Earthquake Safety • You may well experience an earthquake • Earthquakes don’t kill people; Buildings kill people • We will not be in high risk settings • Minor shaking: no hazard • Major or prolonged shaking: Get outside • Avoid buildings and power lines • Trees are well engineered seismically • If inside, get under something sturdy or brace in a doorway.

  4. Tsunamis • Warning Signs • Strong earthquake on coast • Abrupt changes in sea level – up or down • Get to high ground or inland immediately • Do not pass Go, do not collect $200

  5. Volcanism • We will not go anywhere near active volcanoes or known hazardous areas. • If activity occurs, we will evacuate immediately • I am a volcano expert. If you see me running, try to catch up.

  6. Slope Hazards • Landslides due to earthquakes • Mudflows due to heavy rains • Get out of the way • Get off slope if you sense movement • Get away from streams if water level starts to rise

  7. Rips • When waves break parallel to a beach, rips occur

  8. Rips, Lake Superior

  9. Oblique Rips

  10. A Subduction Zone

  11. How Arcs Grow

  12. Exotic Terranes

  13. Fit of Continents Across the Atlantic

  14. The Caribbean

  15. Opening of the North Atlantic

  16. Yucatan Rifts Away

  17. Volcanic Plateau Begins to Form

  18. Plateau Encounters Subduction Zone

  19. Yucatan Basin Opens

  20. East Pacific Rise Approaches

  21. Now