Changes

To help prevent a roof from collapsing, builders make the roof out of light-weight materials. Outdoor walls are made with stronger and more reinforced materials such as steel or [[reinforced concrete]]. During an earthquake, flexible windows may help hold the windows together so they don't break.

To help prevent a roof from collapsing, builders make the roof out of light-weight materials. Outdoor walls are made with stronger and more reinforced materials such as steel or [[reinforced concrete]]. During an earthquake, flexible windows may help hold the windows together so they don't break.

== EarthquakeEarthquake Clusters Media ==

== Earthquake Media ==

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File:Quake epicenters 1963-98.png|Earthquake [[epicenter]]s occur mostly along tectonic plate boundaries, especially on the Pacific [[Ring of Fire]].

File:Quake epicenters 1963-98.png|Earthquake [[epicenter]]s occur mostly along tectonic plate boundaries, especially on the Pacific [[Ring of Fire]].