earth science

List of foreshocks and aftershocks of the 2011 Tōhoku earthquake

List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake rather than just read about it. In short: This is a list of foreshocks and aftershocks of the 2011 Tōhoku earthquake. Japan had experienced 900 aftershocks after the M9.1 earthquake on March 11, 2011 with about 60 aftershocks being over magnitude 6.0 and three over magnitude 7.0.

Key takeaways

List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of foreshocks and aftershocks of the 2011 Tōhoku earthquake from memory before moving on to harder problems.

Reference excerpt

This is a list of foreshocks and aftershocks of the 2011 Tōhoku earthquake. Japan had experienced 900 aftershocks after the M9.1 earthquake on March 11, 2011 with about 60 aftershocks being over magnitude 6.0 and three over magnitude 7.0. For conciseness, only earthquakes with magnitudes greater than 7.0 or an intensity greater than lower-6 on the shindo scale are listed here. Mw refers to the moment magnitude scale, while Mjma, Mjma, or Mj refer to the Japan Meteorological Agency magnitude scale.

Foreshocks

Main shock

Aftershocks

Possibly related earthquakes The following earthquakes are possibly related to the 2011 Tōhoku earthquake. However, agreement toward the relationships has not been reached among the researchers.

References

USGS

Other

External links About triggered earthquakes in the inland area of the Japanese archipelago (Nagoya University)

Illustrations

Worked examples

Example 1 — a first encounter with List of foreshocks and aftershocks of the 2011 Tōhoku earthquake

Start with the simplest possible case. Write down what List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake

In research: List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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: List of foreshocks and aftershocks of the 2011 Tōhoku earthquake is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2011 Tōhoku earthquake and tsunami, Lists of earthquakes, so understanding it makes those chapters shorter.
In everyday life: Look for List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of foreshocks and aftershocks of the 2011 Tōhoku earthquake in simple terms?

Why does List of foreshocks and aftershocks of the 2011 Tōhoku earthquake 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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake?

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 List of foreshocks and aftershocks of the 2011 Tōhoku earthquake.