QB) Create a SAS data set using the earthquake.th dataset. Make sure to use an appropriate informat for the date and time of the earthquake. For each location specified in the comments field, calculate the time between successive earthquakes. Generate a PDF showing the first 10 obsewations with all variables of the dataset. Note that the data in the file earthquakedat is a record of earthquakes recorded by the USGS for the period from the end of 1996 to the middle of 1998. The following variables are included: 1. 2. P .w 9"?" The date ofthe earthquake in the form yy/mm/dd. The time of the earthquake (Greenich Mean Time) in the form hh:mm:ss The latitude, in degrees, of the center of the quake. The longitude, in degrees, of the center of the quake. The depth, in kilometers, of the earthquake activity. The magnitude, reported as a number, followed by two letters which indicate the scale used to measure the quake. The quality of the location information, ranging from A(best) to D(worst). This field may also contain a blank!! A comments field, truncated to 28 characters, generally containing a string (with embedded blanks) describing the location of the quake