EarthScope’s Transportable Array Spans Alaska, the Last Frontier

After covering the lower 48 United States from coast to coast with a grid of nearly 1700 sites, the final seismic station of the EarthScope Transportable Array has been installed in Alaska! Continue Reading

IRIS Special Event Pages

IRIS Special Event web pages provide links to data products and images of data and materials available from IRIS programs and preliminary research results from the seismology community. Continue Reading

My Experience as an IRIS Alaska Transportable Array Intern

Follow IRIS intern Amin Abbasi through his adventures installing Transportable Array seismometers in Alaska! Continue Reading

UPCOMING EVENTS Full Calendar

Jun 12-
Jun 14 2018
IRIS WORKSHOP: Foundations, Frontiers, and Future Facilities for Seismology
Jan 30 2018 IRIS/SSA Distinguished Lectureship Series Houston Museum of Natural Science
Feb 28 2018 IRIS/SSA Distinguished Lectureship Series Houston Museum of Natural Science
Apr 17 2018 IRIS/SSA Distinguished Lectureship Series Oregon Museum of Science and Industry, Empirical Theater
Oct 04 2018 IRIS/SSA Distinguished Lectureship Series OMSI Science Pub, McMenamins Mission Theater
Nov 30 2018 IRIS/SSA Distinguished Lectureship Series Southwestern Oregon Community College

SEISMIC MONITOR

Seismic Monitor

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New Animation! Plate Boundaries and Tectonic Plates

The cool, rigid, outer layer of the earth, the lithosphere, is broken into massive plates along discrete boundaries. What are these plates, and what do the boundaries represent?
 

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New Animation! What Drives Plate Tectonics?

Lithospheric plates are part of a planetary scale thermal convection system. The energy source for plate tectonics is Earth’s internal heat while the forces moving the plates are the “ridge push” and “slab pull” gravity forces.

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SCIENCE AND PROGRAM HIGHLIGHTS Archive

Seismic Reawakening along the South-Central Chile Megathrust Boundary

Seismic Reawakening along the South-Central Chile Megathrust Boundary

Using GPS to examine regional changes in the earth’s surface with time, and seismology to understand the rupture process and stress changes associated with nearby earthquakes, researchers are seeking to understand the “reawakening” of the megathrust boundary along the west coast of Chile.
By road, boat, plane and helicopter: Creating a remote seismic measurement network

By road, boat, plane and helicopter: Creating a remote seismic measurement network

The Southern Alaska Lithosphere and Mantle Observation Network (SALMON) is a two-year EarthScope FlexArray project. Using data recorded by 28 of PASSCAL’s broadband seismometers, the goal is to produce images of the crust and upper mantle to better understand active faulting, mantle flow and seismic structure in the Cook Inlet region.
Detecting wind using seismometers

Detecting wind using seismometers

This research team is using seismometers to detect winds (both sustained winds and gusts) across a range of geographical settings.