Volcanoes

Adjunto:

• Tectonic Hazards

1. Types
   1. Shield
      1. Round and flat
      2. Runny lava which travels far
      3. Divergent plate boundaries

         Adjunto:

         • Plate Boundary Types
   2. Composite
      1. Cone-shaped and tall
      2. Convergent plate boundaries
      3. Thick lava
      4. Pyroclastic flow
      5. Ash expulsion
      6. Crater
2. Detection
   1. Ground Deformation
      1. Bulges in the side of a volcano may indicate a gathering of lava
   2. Gases/Temperature
      1. Increase in temperature or expulsion of sulfur could suggest and imminent eruption
   3. Seismic Activity
      1. Mini earthquakes and foreshocks usually occur prior to eruption