Earthquakes: noticeable events, magnitude 2.5+, since 1975
Earthquakes are caused by a sudden release of stress along faults in the earth’s crust. The continuous motion of tectonic plates causes a steady build-up of pressure in the rock strata on both sides of a fault until the stress is sufficiently great that it is released in a sudden, jerky movement. The resulting waves of seismic energy propagate through the ground and over its surface, causing the
Earthquakes: noticeable events
Tags: Nature and Environment, Geology and raw materials, Earthquakes, Geology, Seismic activity
Spatial extent: Switzerland plus
Times: 1975-1985, Earthquakes since 1975, 1986-1995, 1996-2005, 2006-2015, since 2016
Distinction: Overview, Detail