Earthquake Scale Richter

Richter and beno gutenberg.

Earthquake scale richter. Magnitude is determined using the logarithm of the amplitude height of the largest seismic wave calibrated to a scale by a seismograph. Mercalli scale which is dependent on a variety of factors including population at the epicentre terrain depth etc an earthquake in a densely populated area which results in many deaths and considerable damage may have the same magnitude as a shock in a remote area that does nothing more than frightening the wildlife. Richter scale widely used quantitative measure of an earthquake s magnitude size devised in 1935 by american seismologists charles f.

The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs. Because the richter scale is logarithmic a 5 0 earthquake measures 10 times the shaking amplitude than one that measures 4 0 for example. His scale worked like a seismogram measured by a particular type of seismometer at a distance of 100 kilometers 62 mi from the earthquake.

Richter established two features now common to all magnitude scales. The richter scale runs from 1 to 10 with 1 being the smallest and 10 being the largest. Champhai mizoram india july 28 ani.

This was later revised and renamed the local magnitude scale denoted as ml or m l. Charles richter developed the richter scale in 1935. The first scale for measuring earthquake magnitudes developed in 1935 by charles f.

Richter of the california institute of technology as a mathematical device to compare the size of earthquakes. That is the wave amplitude in a level 6 earthquake is 10 times greater than in a level 5 earthquake and the amplitude increases 100 times between a level 7 earthquake and a level 9 earthquake. The richter magnitude scale was developed in 1935 by charles f.

Earthquakes 4 5 or higher on the richter scale can be measured all over the world. Estimated number each year. The richter scale doesn t measure quake damage see.

The richter scale also called the richter magnitude scale or richter s magnitude scale is a measure of the strength of earthquakes developed by charles f. The richter scale is logarithmic meaning that whole number jumps indicate a tenfold increase in this case the increase is in wave amplitude. An earthquake with a magnitude of 4 4 on the richter scale struck near mizoram s champhai region on tuesday said the national centre for seismology ncs.

Richter and popularly known as the richter scale is actually the local magnitude scale label ml or m l. Usually not felt but can be recorded by seismograph. Richter and presented in his landmark 1935 paper where he called it the magnitude scale.