Use the USGS Earthquake Search to find earthquakes with a magnitude of 5.0 or greater that have occurred in the past year. 1  Click the Global (Worldwide) Search link. 2  Obtain the records by selecting Spreadsheet Format (comma-delimited) as the Output File Type. 3  Choose the USGS/NEIC (PDE) 1973 - Present Data Base.
The definition of a jib is an arm that sticks out of a crane, a triangular sail that stays in front of the mast, or an animal that stops and refuses to go back. An example of a jib is the part of a crane that reaches out to grab. An example of a jib is one of the sails on a sailboat.
The jib cranes can be also fitted on top floors of warehouse buildings to help lift goods to all floors from ground to top. The jib is an operating arm that extends horizontally from the crane. The jib on a jib crane is a tilted strut that supports a fixed pulley block.