Seismology Instruction with the AS 1

  Searching the IRIS Earthquake Database

     The IRIS event search is very similar to the NEIC event search.  However, IRIS also 

provides a geographical location in addition to the latitude and longitude.  

   Launch your browser and go to:  

http://www.iris.edu

Select Earthquakes

Select 

Search Event Catalog > Event Search

   Enter a date range in the search form.

   This site does not require all fi elds to be fi lled in. 

   Click on Submit Search

  Site Output

When the search is complete, you will see a table of 

data in your browser window.

Month

Latitude

Depth

Magnitude

Day

Time

Longitude

Magnitude Type

Searching for Mining Seismicity

     NEIC catalogues routine mining seismicity in the United States.

   Launch your browser and go to:

http://wwwneic.cr.usgs.gov

Select 

Routine U.S. Mining Seismicity

   Scroll down through the catalogues and click on the month of interest.

  Site Output

Longitude

Region

Magnitude

Date

Latitude

Depth

AmaSeis Version 1.0 Level 2005.05.19

4.11