In geomorphology, an outburst flood, which is a type of megaflood, is a high-magnitude, low-frequency catastrophic flood involving the sudden release of water. During the last deglaciation, numerous glacial lake outburst floods (GLOF) were caused by the collapse of either ice sheets or glaciers that formed the dams of proglacial lakes. Examples of older outburst floods are known from the geological past of the Earth and inferred from geomorphological evidence on Mars. Landslides, lahars, and volcanic dams can also block rivers and create lakes, which trigger such floods when the rock or earthen barrier collapses or is eroded. Lakes also form behind glacial moraines, which can collapse and create outburst floods.
Read more about Outburst Flood: Definition and Classification, Outburst Flood Examples
Famous quotes containing the words outburst and/or flood:
“War was then no longer this noble and unified outburst of souls in love with glory that he had imagined from Napoleon’s proclamations.”
—Stendhal [Marie Henri Beyle] (1783–1842)
“There are flood and drouth
Over the eyes and in the mouth,
Dead water and dead sand
Contending for the upper hand.
The parched eviscerate soil
Gapes at the vanity of toil,
Laughs without mirth.
This is the death of the earth.”
—T.S. (Thomas Stearns)