In fact, the Richter scale was replaced in the 1970s by other ... scale used relatively high-frequency data from nearby seismograph stations, according to the USGS, but as more stations were ...

The modern scale measures a quantity called “moment magnitude” (denoted as Mw), which is based on variables such as the area ...

An earthquake measuring 7.7 on the Richter Scale hit Myanmar with its tremors and aftershocks being felt in parts of Thailand ...

What this means is that for each whole number you go up on the magnitude scale, the amplitude of the ground motion recorded by a seismograph goes up ten times. Using this scale, a magnitude 5 ...