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 ...

H1 does not separate the classes. H2 does ... our results indicate that for large earthquakes (>Mw 6) [greater than 6.0 on the moment magnitude scale], true negative predictions can be achieved ...

Earthquakes are becoming increasingly frequent. On Sunday morning, four earthquakes struck parts of India, Myanmar, and Tajikistan within just one hour, sending tremors across central and South Asia.

The Richter magnitude scale that was introduced in 1935 by the American scientist Charles Richter has been superseded by more advanced earthquake classifications that use a 1-to-10 scale.