Posted:

Planned Maintenance

Dear IRIS community: Beginning at 5:30am PDT Saturday August 25, (12:30UTC) IRIS services
will be failed over to our Auxiliary Data Center while we undergo scheduled power failover and maintenance in Seattle.

We anticipate access to realtime data will be delayed, but all other services should be available during this period. We anticipate full service resumption at 12:00PDT, 19:00UTC

IRIS EPO

For educators, college/university faculty and professionals interested in the instruction of seismological concepts in primary and secondary classrooms.

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Active Message Threads for September 2012

IRIS EPO
Sept. 17, 2012, 6:10 a.m.
NEW ANIMATIONS AVAILABLE! *What Bumped the Richter Scale?* <http://www.iris.edu/hq/programs/education_and_outreach/animations/26> A new animation, Exploring Moment Magnitude, describes the Richter Scale and how new calculations help to quantify larger earthquakes. Scientists have developed far-more sensitive seismometers that, with faster computers, have enabled them to record & interpret a broader spectrum of seismic signals than was possible in the 1930's, when the Richter magni... [more]
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