earthquakes
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]
disaster relief
Kobe earthquake
tangshan earthquake
San Francisco Earthquake
geological processes
Haiti earthquake
sichuan earthquake
Bam earthquake
climate
Haiyuan earthquake
geomorphology
concepts
natural disasters
Ashgabat earthquake