Question

The severity of an earthquake is measured on __
A) Richter scale
B) rain gauge
C) thermometer
D) None of these

Answer 1

Hint:
The magnitude of an earthquake is resolved from the logarithm of the adequacy of waves recorded by seismographs.

Complete answer:
The Richter extent scale was created in 1935 by Charles F. Richter of the California Institute of Technology. The extent of a quake is resolved from the logarithm of the plentifulness of waves recorded by seismographs. Changes are incorporated for the variety somewhere far off between the different seismographs and the focal point of the quakes. On the Richter Scale, size is communicated in entire numbers and decimal portions.

The scale was supplanted during the 1970s by the second size scale (MMS, image Mw ); for tremors enough estimated by the Richter scale, mathematical qualities are roughly the equivalent. In spite of the fact that qualities estimated for seismic tremors currently are Mw , they are every now and again revealed by the press as Richter values, in any event, for quakes of size more than 8, when the Richter scale becomes meaningless. The Richter and MMS scales measure the energy delivered by a tremor; another scale, the Mercalli power scale, characterizes quakes by their belongings, from perceptible by instruments however not observable, to cataclysmic. The energy and impacts are not really firmly associated; a shallow tremor in a populated region with the soil of particular sorts can be unquestionably more serious in impacts than a significantly more vigorous profound quake in a disengaged territory.

Hence, the correct answer is option A.

Note:
In principle, the Richter scale has no maximum breaking point, however, by and by, no quake has ever been enrolled on the scale above extent 8.6.
On the first Richter scale, the littlest tremors quantifiable around then were allotted values near zero on the seismograph of the period.