An earthquakes magnitude is measures buy a Richter scale which was invented by Dr. Charles Richter in the 1930s a seismologist of the California state institution it is the measure of the largest seismic wave recorded on a certain seismograph located 100 clicks, roughly 62 miles from the epicenter of an earthquake.
Richter scales are used to measure the magnitude of an earthquake. There is no specific unit used for earthquakes. I hope this helps. =)
Richter
Richter or Mercailles.
The Richter scale
nanoseconds
seismograph are used to predict an earthquake
The unit used to measure the energy of an electromagnetic wave is called a photon.
Isak. Isak Dinesen is the pen name Karen Blixen used to write "Out Of Africa."
Minutes
a decibel
Newtons / square meter. This unit has the special name Pascal.
The base unit for time is the second.