Another way to measure the strength of an earthquake is to use the observations of the people who experienced the earthquake, and the amount of damage that occurred, to estimate its intensity. The ...

(WHTM) – Residents along much of the East Coast felt shaking Friday morning as a 4.8 magnitude earthquake struck New ... Beno Gutenberg — to measure the size of earthquakes occurring in ...

Earthquake Magnitude Scale Magnitude Earthquake Effects Estimated Number Each Year 2.5 or less Usually not felt, but can be recorded by seismograph. Millions 2.5 to 5.4 Often felt, but only causes ...

Earthquakes can build mountains or tear a continent apart. The places where pieces of crust move against each other are called fault lines, and scientists monitor fault lines to measure earthquakes.