Register for the 2019 Joint SAGE/GAGE Workshop!

Please join us at the 2019 Joint SAGE/GAGE Workshop, to be held in Portland, OR, October 9th-11th. The joint workshop theme is 'Earth in 4D: Bridging the Timescales in Dynamic Earth Processes’. Continue Reading

First Release of Data from Mars InSight Now Available

The first data from the Mars SEIS (Seismic Experiment for Internal Structure) instrument is now available from the IRIS Data Management Center, in parallel with the NASA’s Planetary Data System and the IPGP’s Mars SEIS Data Service. Continue Reading

Where are the IRIS Interns Now?

A survey finds that most IRIS intern alumni are employed in the geosciences, but across a variety of employment sectors. Continue Reading

UPCOMING EVENTS

Oct 9-11 2019 SAGE/GAGE Workshop: Earth in 4D: Bridging the Timescales in Dynamic Earth Processes
Hilton Portland Downtown, Portland, OR,
Jul 16 IRIS/SSA Distinguished Lectureship Series
Oregon Museum of Science and Industry, Empirical Theater (Portland,Oregon)
Oct 17 IRIS/SSA Distinguished Lectureship Series
Exploratorium (San Francisco,California)
Oct 18 IRIS/SSA Distinguished Lectureship Series
Southwestern Oregon Community College (Coos Bay,Oregon)
Nov 8 IRIS/SSA Distinguished Lectureship Series
Southwestern Oregon Community College (Coos Bay,Oregon)
Nov 12 IRIS/SSA Distinguished Lectureship Series
American Museum of Natural History (New York,New York)
Earthquake Resources

New Earthquake Safety Video!

If you live in earthquake-prone regions it isn’t a question of IF, but WHEN an earthquake will occur. This animation shows quick steps to take if you are in a building, outside, in bed, in a classroom or lab, in a wheelchair, in a store, in a high rise, or in a car.

NEW ANIMATION! Foreshock, mainshock or aftershock?

Large earthquakes are usually followed by hundreds and even thousands of smaller earthquakes, called aftershocks. In some earthquake sequences, a smaller earthquake called a “foreshock”, precedes the mainshock.

Deep earthquakes in the depths of the ocean

Deep earthquakes in the depths of the ocean

Beneath the sparkling blue seas in the southern Pacific Ocean lies the mysterious underworld of the Tonga Trench – the second deepest place on Earth. The Tonga Trench is over 10 km deep and is home to +65% of the world’s deepest earthquakes. In 2018, two of the largest deep earthquakes ever recorded in this part of the Pacific occurred within days of one another. But why?
Noisy wind – A tale of tilting seismometers

Noisy wind – A tale of tilting seismometers

Important work by former IRIS Intern Sydney Dybing and others show that noise, whatever the cause, provides the lower limit of resolution for a given seismometer, and that limit is dependent on depth, substrate and installation style
Scientists Identify Almost 2 Million Previously “Hidden” Earthquakes

Scientists Identify Almost 2 Million Previously “Hidden” Earthquakes

Using powerful computers and a technique called template matching, scientists at Caltech have identified millions of previously unidentified tiny earthquakes. A closer look at seismic data from 2008–2017 expands Southern California's earthquake catalog by a factor of 10.