An earthquake also known as a quake tremor or temblor.Earthquakes are measured using measurements from seismometers. In the winter of 18 and 1812 hit the town of New Madrid.
The moment magnitude is the most common scale on which earthquakes larger than approximately 5 are reported for the entire globe.
Credits:
Created with images by Angelo_Giordano - "earthquake rubble collapse" • Angelo_Giordano - "earthquake rubble l'aquila" • Angelo_Giordano - "earthquake rubble collapse" • eblaser - "213 [earthquake hats]" • andymag - "Earthquakes"