Permanent stations in polar regions
Gigabytes of SAR data delivered last quarter
Participants in summer 2021 internship programs

UNAVCO is a community of scientists, educators, and professionals working together to better understand Earth processes and hazards using geodesy. We operate the GAGE Facility on behalf of the National Science Foundation with support from NASA and the USGS.

April 21, 2022 M 6.7 Masachapa, Nicaragua Earthquake

At 7:42:46 UTC on April 21, a magnitude 6.7 earthquake occurred offshore of Nicaragua 58 kilometers southwest of Masachapa.


IRIS Receives NSF Award to Support Planning of Subduction Zone Observatory

The National Science Foundation (NSF) awarded nearly $500,000 to IRIS to conduct activities focused on Subduction Zone in Four Dimensions (SZ4D). SZ4D is an initiative in the research community to study subduction zones – the places where tectonic plates converge and collide – through both space and time, with a focus on the fundamental processes underlying geologic hazards such as great earthquakes, tsunamis, landslides, and volcanic eruptions. UNAVCO is a subawardee on this award to IRIS.


Plate Motion Calculator

Calculate tectonic plate motion at any location on Earth using one or more plate motion models. The Plate Motion Calculator is a tool that calculates rigid plate motions. Computations can be made at one or more specified locations on Earth.

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