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 >
Earthquakes are measured based on their magnitude (the Richter scale). There have only been a couple that registered over a magnitude of 9.0 on the seismometer. An earthquake with a magnitude greater than 9.0 is an extreme natural disaster and are very rare. Hereâs a countdown of the 10 largest earthquakes ever recorded: 10.