A violent earthquake that cracked highways in Alaska set the sky shaking as well as the land, an ESA-backed study has confirmed.
This fact could help improve earthquake detection techniques in areas lacking seismic networks, including the ocean floor. A team from the Institut de Physique du Globe de Paris and the California Institute of Technology has successfully used the Global Positioning System (GPS) satellite constellation to map disturbances in the ionosphere following last November’s magnitude 7.9 earthquake in Denali, Alaska.
Their paper has been published in the scientific journal Geophysical Research Letters. The research itself was carried out in support of ESA’s Space Weather Applications Pilot Project, aimed at developing operational monitoring systems for space conditions that can influence life here on Earth.
Frédéric Le Gall | European Space Agency
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