Measuring Earthquakes

The video tutorial explains how seismic waves from earthquakes are detected using seismographs, which produce seismograms to help scientists determine earthquake details. It introduces the Richter scale as a method to measure earthquake strength, noting that each increase of 1.0 on the scale represents a tenfold increase in wave amplitude. The tutorial also compares the magnitudes of the 1964 Alaska earthquake and the 1989 Loma Prieta earthquake to illustrate the scale's application.

How does the Richter scale measure the strength of earthquakes?

Compare the magnitudes of the 1964 Alaska earthquake and the 1989 Loma Prieta earthquake.