Ashgabat earthquake
type: Concept
broader: earthquakes

Bam earthquake
type: Concept
broader: earthquakes

Haiti earthquake
type: Concept
broader: earthquakes

Haiyuan earthquake
type: Concept
broader: earthquakes

Kobe earthquake
type: Concept
broader: earthquakes

San Francisco Earthquake
type: Concept
broader: earthquakes

climate
type: Concept
narrower: earthquakes

concepts
type: Collection
type: ConceptGroup
member: earthquakes

disaster relief
type: Concept
narrower: earthquakes

earthquakes
type: Concept
broader: climate
broader: natural disasters
broader: disaster relief
broader: geomorphology
broader: geological processes
definition: Earthquakes involve the travel of elastic, or seismic, waves of energy through the Earth's rigid crust. They result from the sudden liberation of accumulated stress and strain along faults, which are planar discontinuities in the crust. [Source: Encyclopedia of Geography; Earthquakes]
narrower: Ashgabat earthquake
narrower: sichuan earthquake
narrower: San Francisco Earthquake
narrower: tangshan earthquake
narrower: Haiyuan earthquake
narrower: Kobe earthquake
narrower: Haiti earthquake
narrower: Bam earthquake

geological processes
type: Concept
narrower: earthquakes

geomorphology
type: Concept
narrower: earthquakes

natural disasters
type: Concept
narrower: earthquakes

sichuan earthquake
type: Concept
broader: earthquakes

tangshan earthquake
type: Concept
broader: earthquakes