Cylus is a modern English respelling of the name Silas, which is a short form of the Greek name Silouanos, which is a variant of the Latin name Silvanus, which is derived from the Latin word silva, meaning wood, forest.. Tweet.
The modified mercalli intensity scale is used to measure the intensity of an earthquake and is in part derived from the damage done to building and other structures. Edit Share to:
A variation of this is used  in Europe and is known as the Macroseismic scale.    Earthquakes are measured with a seismometer.   Seismometers and accelerometers are used to measure the  acceleration of the ground surface and the total amplitude of  seismic waves during an earthquake.