A natural hazard is a naturally occuring event that has the potential to affect people's lives or property.

Continental = thicker but less dense than oceanic.

Earthquakes @ destructive plate boundaries:

Tension build up as one plate gets stuck as it's moving past the other into the mantle. Plates eventually jerk past one another, sneding out shockwaves.

Focus - the point in the Earth where the earthquake starts.

Some volcanoes form over parts of the mantle which are really hot, called hotspots.

Sustainable ways to reduce impacts of earthquakes:

building techniques, planning, education, & aid.

Ways to predict an earthquake:

small tremors, cracks appearing, strange animal behaviour, data from past earthquakes.

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Ways to predict a volcanic eruption:

tiny earthquakes, escaping gas, & changes in the shape of the land.

Ways to prevent:

planning: future developments (housing), firebreaks, emergency services training, evacuation routes.

building techniques: strengthened to withhold fallling ash, barriers to divert lava.

education: how to evacuate, how to make a survival kit.

aid: ledcs can receive food/water/medical help/money etc.

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