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

Seismology on Ice!

Follow the adventures of Dr. Bob Woodward, the Director of IRIS Instrumentation Services, as he travels to Antarctica to do "Seismology on Ice"! 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.

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
Investigating “man-made quakes” in Western Canada

Investigating “man-made quakes” in Western Canada

In the US, most induced earthquakes are the result of wastewater injection, whereas in western Canada, induced earthquakes are more closely correlated with hydraulic fracturing operations. Why do some areas experience induced earthquakes while others remain seismically inactive?
Massive 1994 Bolivian Earthquake Reveals Mountains 660 Kilometers Below our Feet

Massive 1994 Bolivian Earthquake Reveals Mountains 660 Kilometers Below our Feet

Princeton geophysicists, in collaboration with colleagues in China, used data from an enormous earthquake in Bolivia to find mountains and other topography on the base of the transition zone that separates the upper and lower mantle.