Currently the online catalog comprises the period: 1990-Present

Select Date Range:	MO/DD/YYYY	-to-	MO/DD/YYYY	e.g.
Start Date:	//	-to-	//	12/01/1992 -to 05/01/2007
Latitude:	N	-to-	N	40.33 -to 45.76
Longitude:	W	-to-	W	66.75 -to 76.22 ('-' is implied)
Magnitude:		-to-		1.2 -to 3.5 (Mag='Mn')
Show:	Earthquakes		Blasts

*If you don't specify any parameters you will get the whole catalog from 1990-Present