The 6.7 Mw Kiholo Bay earthquake rocks Hawaii, causing property damage, injuries, landslides, power outages, and the closure of Honolulu International Airport.

Seismic magnitude scales are used to describe the overall strength or "size" of an earthquake. These are distinguished from seismic intensity scales that categorize the intensity or severity of ground shaking (quaking) caused by an earthquake at a given location. Magnitudes are usually determined…