1 / 8

Effects of Volcanic Eruption

Effects of Volcanic Eruption. Generally slow moving Temperature ranges from: ~850°C to 1100°C Flow pattern and direction is predictable Damage: Lots of property damage, little loss of life. Lava. Hot, dense clouds of ash and gases Speeds can easily exceed 100 km/hr

payton
Télécharger la présentation

Effects of Volcanic Eruption

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Effects of Volcanic Eruption

  2. Generally slow moving • Temperature ranges from: ~850°C to 1100°C • Flow pattern and direction is predictable • Damage: • Lots of property damage, little loss of life Lava

  3. Hot, dense clouds of ash and gases Speeds can easily exceed 100 km/hr Temperatures often >1000°C Unpredictable Generally associated with stratovolcanoes Pyroclastic Flows

  4. Freshly deposited volcanic ash • Very unstable when wet • Bury towns • Chokes drainage systems • Ex: Tacoma • On top of an ancient mudflow Lahars (mudflows)

  5. Atmosphere

  6. Volcanic dust and ash: • If in the stratosphere: • Affects are global and long-term • Affects global temperatures (blocks sunlight) • Kratatau, 1883 • Tambora, 1815 • Pinatubo, 1991 • If in the troposphere: • Local temperature changes and effects • Short-term Secondary Atmospheric Effects

  7. SO2 from gases emitted during the eruption In troposphere: removed as acid rain In stratosphere: stays for years Can circle the globe May cause ozone depletion Acid Rain

  8. Tsunamis – Earthquakes and land movement Famine Disease Political strife Social, economical, emotional stress Etc. Other secondary effects?

More Related