I have a dat file named "Earthquake.dat", following are first few lines of the dataset:

96/10/30 23:30:39 24.56S 176.31W 33.0 5.5Mb C SOUTH OF FIJI ISLANDS

96/10/31 18:18:43 9.81N 126.52E 33.0 5.8Mb C MINDANAO, PHILIPPINE ISLANDS

96/11/01 03:09:28 37.35N 104.23W 5.0 3.2Lg A COLORADO

96/11/01 03:32:34 1.22S 149.41E 33.0 5.7Ms A NEW IRELAND REGION, P.N.G.

96/11/01 07:00:16 1.32S 149.37E 33.0 5.5Ms C NEW IRELAND REGION, P.N.G.

96/11/01 14:38:06 0.01S 17.90W 10.0 5.0Mb B NORTH OF ASCENSION ISLAND

96/11/01 19:38:18 36.79N 121.49W 5.0 2.8Ml A CENTRAL CALIFORNIA

96/11/01 20:31:10 9.81N 126.55E 33.0 5.0Mb MINDANAO, PHILIPPINE ISLANDS

96/11/02 00:08:47 7.39S 117.17E 267.6 5.5Mb B BALI SEA

96/11/02 03:04:48 33.23N 115.73W 5.0 2.9Ml A SOUTHERN CALIFORNIA

96/11/02 13:50:33 19.07N 39.18E 10.0 5.1Mb B RED SEA

96/11/02 16:58:10 1.00S 149.00E 33.0 4.8Mb NEW IRELAND REGION, P.N.G.

96/11/03 05:32:13 40.34N 125.18W 15.0 3.1Ml A OFF COAST OF N CALIFORNIA

96/11/03 05:40:18 9.90N 126.49E 33.0 5.1Mb C MINDANAO, PHILIPPINE ISLANDS

96/11/03 06:16:07 60.30N 151.12W 42.6 3.5Ml KENAI PENINSULA, ALASKA

96/11/03 06:32:04 34.60N 116.26W 5.0 3.3Ml A SOUTHERN CALIFORNIA

The variables are: Earthquake date, Earthquake time, Latitude, Longitude, Depth, Magnitude, Quality, Location of Quake.

What SAS code can be used to calculate the time between successive earthquakes for each location specified in the comments field? Thank you