Earthquake Information Center

UUSS Quarterly Seismicity Summaries

Four times yearly, we issue a Quarterly Seismicity Summary to relate the state of the network, which stations have been in operation, and list the earthquakes located for the period indicated.

2009 Catalog

Third Quarter (July - September) 2009

Second Quarter (April - June) 2009

First Quarter (January - March) 2009


updated 08/4/09

 

Select from the drop down menu for previous years.