Plate Boundaries By Brandon Butler

Divergent Boundary

Eyjafjallajökull is a volcano the erupted in 2010 in Iceland. About 20 countries closed air traffic, and it affected about 10 million travelers.

Divergent Boundaries make Volcanos, Mid-Ocean ridges, Faults, Earthquakes, and Rift Valleys.

Tension is the type of stress in a divergent boundary. Tension is where the plates pull apart from each other.

Convergent Boundary

In convergent boundaries the plates move towards each other, this is compression.

Mount St Helens was a volcano that erupted in 1980. Fifty-Seven people were killed. Many homes, bridges, and areas were destroyed in the eruption.

Convergent boundaries can form mountains, volcanos, trenches, and faults. They also have many earthquakes.

Transform Boundary

Transform boundaries moves past each other makes shear stress. They rub and make earthquakes and faults.

A fault is the main landform a transform boundary makes. A fault happens when the plates start moving apart and happens very slowly. This can ruin roads and move rivers.

The largest earthquake in California was in the San Andreas Fault. Its magnitude was a 7.9 and happened in 1857. It offset stream channels by arounds 9 meters.

Credits:

Created with images by NASA Earth Observatory - "Pagan Island, Northern Marianas" • NOAA Photo Library - "expl2248" • Glyn Lowe Photoworks. - "Mid-Atlantic Ridge - Iceland" • pmlbird - "PML Convergent Boundary" • jeffgunn - "Mt. Saint Helens" • Jonas B - "Mountains" • pmlbird - "PML Transform Boundary" • tonynetone - "World's Most Famous Fault" • Michael R Perry - "San Andreas Fault (geotagged)"

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