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Pacific Northwest Earthquake Location Page

Two earthquake databases are searched. One is for earthquakes from 1833 to 1969 from DOGAMI OF-94-04, and the other is the University of Washington earthquake catalog from 1969 to <% dim fso, f, fileDate set fso = CreateObject("Scripting.FileSystemObject") set f = fso.GetFile("D:\Inetpub\wwwroot\NW-Quake\QuakeData\allloc.dat") 'Response.Write(f.DateLastModified) ' CDate returns a Variant of subtype Date ... this will allow us to controlt the formatting fileDate = CDate(f.DateLastModified) Response.Write(fileDate) ' Above is string of form "7/10/00 12:30:03 AM" ' The following is the same as the above but in JScript ... ' %>.

This service will be updated later to provide a map interface for locating earthquakes.

This page is intended for locating historic earthquakes. For information on recent earthquakes please go to the Pacific Northwest Seismic Network at the University of Washington.

If you know a place name, but don't know it's latitude and longitude, click here for index of names with locations. Locations must be in decimal degrees.

This page allows you to search for earthquakes by entering a location and distance, or by specifying a rectangular region.

Select one of the two types of searches

Bounding Rectangle
Distance from point

Enter positions as decimal degrees
Longitudes will be a NEGATIVE number. Western limit should be more negative than eastern limit.
Latitudes will be a positive number. Northern limit should be greater than southern limit.
Don't know your latitude/longitude? -- Click here for index of names and locations

If you selected "Bounding rectangle" then enter the six values below

Northern limit:		Degrees (Valid range: 42 to 48)
Southern limit:		Degrees (Valid range: 42 to 48)
Western limit:		Degrees (Valid range: -117 to -124.5)
Eastern limit:		Degrees (Valid range: -117 to -124.5)
Minimum Magnitude:
Maximum Magnitude:

If you selected "Distance from point" then enter the five values below

Latitude of point:		Degrees (Valid range: 42 to 48)
Longitude of point:		Degrees (Valid range: -117 to -124.5)
Distance from point:		km (Valid range: greater than 0)
Minimum Magnitude:
Maximum Magnitude:

Questions? Comments? Contact CruikshankK@pdx.edu
Page Last Updated: February 24, 2002