earth science

Raurimu Fault

Raurimu Fault is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Raurimu Fault rather than just read about it. In short: The Raurimu Fault is the western Taupō rift-bounding north–south striking normal fault complex of the Ruapehu Graben, a seismically active area of the central North Island of New Zealand to the west of Mount Ruapehu. Geography It is located near the western side of the Tongariro National Park, mainly in the Erua Forest, where it is along the western Waimarino Stream valley.

Key takeaways

Raurimu Fault belongs to earth science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Raurimu Fault to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Raurimu Fault from memory before moving on to harder problems.

Reference excerpt

The Raurimu Fault is the western Taupō rift-bounding north–south striking normal fault complex of the Ruapehu Graben, a seismically active area of the central North Island of New Zealand to the west of Mount Ruapehu.

Geography It is located near the western side of the Tongariro National Park, mainly in the Erua Forest, where it is along the western Waimarino Stream valley. The northern surface traces of the fault commence near the Raurimu Spiral and the most southern surface is over 35 km (22 mi) to the south just to the east of the township of Raetihi.

Geology The northern end of the fault is intersected at the township of National Park by the National Park Fault which is the more northern Taupō Rift western wall fault. Lahar deposits of late Pleistocene (20,000 to 60,000 years ago) are offset by up to 60 m (200 ft). At its southern end the fault alignment is crossed by the east west Ohakune Fault which creates just to the east of Ohakune a quite complex normal fault structure. The north south fault line resumes for a short distance from here until full transition near Raetihi into the east west alignment of the Taupō Rift termination faults beyond the Ruapehu Graben. The dip slip rate is 1.5 mm (0.059 in)/year with the last major displacement being 2.8 m (9 ft 2 in) at 2000 ± 300 years ago. It has a normal sense of throw, and a strike and dip of 005/53°E. A deep earthquake swarm not associated directly with the fault, but which was across it defines it as a shallow fault.

Risks The size of the characterised displacements indicates major earthquakes typical for the Taupō Rift are possible. The associated north eastern faults have been associated with a recent shallow smaller earthquake swarm.

References

Worked examples

Example 1 — a first encounter with Raurimu Fault

Start with the simplest possible case. Write down what Raurimu Fault claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Raurimu Fault before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Raurimu Fault ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Raurimu Fault

In research: Raurimu Fault appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Raurimu Fault in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Raurimu Fault is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ruapehu District, Seismic faults of New Zealand, Taupō Volcanic Zone, so understanding it makes those chapters shorter.
In everyday life: Look for Raurimu Fault outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Raurimu Fault in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Raurimu Fault means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Raurimu Fault out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Raurimu Fault in simple terms?

Why does Raurimu Fault matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Raurimu Fault?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Raurimu Fault.