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https://theconversation.com/using-thunderquakes-to-x-ray-earth-a-new-study-shows-urban-seismology-in-action-289961>
"When lightning strikes, it superheats the air around it and creates a shock
wave that we hear as thunder. But thunder doesn’t just travel through the
atmosphere to our ears.
When that energy reaches the ground, some of it is converted into seismic waves
that ripple through the soil and rock beneath. The resulting vibrations are
known as “thunderquakes.”
Until now, scientists haven’t understood these signals well enough to make
practical use of them. Our team’s research shows that thunderquakes can be used
to map the structure beneath the Earth’s subsurface – such as groundwater
movement, environmental contamination, sinkholes, or for evaluating building
sites and foundations – just like X-rays image inside the human body.
We discovered this by listening to thunder with something found in communities
around the world but unusual as a seismic measuring instrument: fiber-optic
cable."
Share and enjoy,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
