It will almost certainly take several tens of thousands of years, if the growth rate for L'ihi is comparable to that of other Hawaiian volcanoes (about 0.1 foot per year averaged over geologic time).
A: The Richter scale is used to quantitatively measure the magnitude of an earthquake. This tool was devised by the seismologist Charles F. Richter in 1935. Full Answer >
This gives earthquakes the potential to cause massive damage. The strength of an earthquake is measured using a piece of equipment called a seismometer. The measurement gives an earthquake a number on the Richter scale. The largest earthquake ever recorded was in Chile in 1960, and registered a 9.5 on the Richter scale. Surface vs. Body Waves