Earth Science Asked by user20217 on April 30, 2021
This site
and here
https://github.com/openeew/openeew/
advertises such a system. But from the make-up of the site and no geo-science related work that they link to (at least what I could find) I assume it is just an advertisement for the internet of things (IoT) and economic interests outweigh a scientific usefulness.
But opinion aside, does a denser (home made) sensor network than the status quo of earthquake watchers in the hot spots and ODAS buoys really shorten warning times? Hasn’t this been worked on in the wake of the 2004 Indian Ocean tsunami?
It would be interesting to know if home made sensors and IoT really could contribute to shorten warning times from official sensor networks.
In fact it is possible, the early warning system is not something more than a series of accelerometers (seismometers). There is always an epicenter for an earthquake. closer sensors to the epicenter shorten the time for occurrence announcement and more time for far locations to get ready.
There are even some efforts to use personal cellphones accelerometer sensors as a part of broad early warning system. for example here and here . RaspberryShake home sensors can also contribute in a global effort to shorten seismic events announcements. you can follow some live data shared by this home instruments in Iris jamaseis software, freely. This should be noted that all these efforts are still in early stages. Currently some seismically active cities are equipped with early warning systems but not based on home sensors but on seismic networks.
Answered by Shahram Maghami on April 30, 2021
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