Skip to content
Library
Solve
Practice
Search 7,000+ topics
/
Color theme
Dark
Light
Sign in
Library
Solve
Practice
Search everything
About Expii
Contributors
Topic directory
Science
Earth Science
Geology
Earthquakes
What Is an Earthquake?
What Is the Focus of an Earthquake?
Read this topic
Explanations
1
Focus: the location where the earthquake begins, also the weakest point where the rocks slip, setting into motion the Elastic Rebound Theory. The ground ruptures at this point, …
By Nina Jiang
Find a topic
Type a concept, like “slope” or “photosynthesis”.
↑ ↓ to choose · Enter to open
Search explanations and problems