Natural Resources Canada
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Natural Resources Canada > Earth Sciences Sector > Earthquakes Canada
Magnitude of earthquakes and effects
| less than 2.5 |
NoneRegistered only by seismographs |
None |
None |
| 2,5 |
A low rumble can be heard by people at rest |
None |
None |
| 3.0 |
Low rumble heard |
None |
None |
| 4.0 |
Minor vibrations felt |
None |
None |
| 5.0 |
Vibrations felt |
Movement of light objects |
None | |
| 6.0 |
Vibrations strongly felt, injuries caused by the movement of objects |
Movement of objectsFallen chimneys |
Possibility of landslides, rockfalls |
| 7.0 and higher |
Widespread fear, casualties |
Partial destruction of old buildings of modern buildings affected |
Landslides, widespread damage and possibility of a tsunami if the epicentre is offshore |