Extreme Earth events · AS 91191
Demonstrate understanding of the causes of extreme Earth events in New Zealand
Demonstrate understanding of the causes of extreme Earth events in New Zealand
This standard asks you to explain what causes extreme Earth events in New Zealand—specifically earthquakes, volcanic eruptions, and tsunamis. You need to describe what these events are and explain how they happen by linking them to processes in the Earth's crust, oceans, and atmosphere. Since New Zealand sits on plate boundaries, these events happen frequently here and are a key part of understanding how the planet works.
You demonstrate basic understanding by describing what happens during extreme Earth events (what magma does, how earthquakes release energy, how tsunamis move) and identifying the main processes involved.
You explain how different geological processes link together—for example, how density differences cause magma to rise, how earthquake depth affects energy distribution, or how seafloor uplift connects to tsunami generation.
You explain comprehensively how interconnected processes across the Earth's systems work together, showing deep understanding—for example, explaining how silica composition of magma links to volcano shape, how earthquake energy relates to both depth and distance from epicentre, and how seafloor friction changes tsunami wave behaviour.
Standards typically taken alongside or after this one. Same subject, grouped by level.