Good day!
Our thesis is about the initial study of the RS4D as a seismic monitoring system. As part of our project, we were tasked to create a mobile application that would serve as the school’s own mobile app. This mobile app will notify students (if they download it) in case of an upcoming significant shaking or earthquake. It will also have an alarm feature that will activate within the school premises.
I would just like to ask if the RS4D device we purchased can serve as the sensor for this concept. If yes, do you have any advice or tips that you could share regarding this matter?
Thank you very much!
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I’m not sure this would be possible with just one 1 seismograph.
If you take a look at the earthquake ‘wave’ motion here:

You can see how many sensors (keep an eye on Alaska up north) allow the pre-shake system to ‘see it coming’.
One sensor on its own, it will alert at the exact time you also feel it.
This is a typical heliostat trace from my RS4D. You can see how things are fine, then bang, the earth slips and the quake starts. No pre-warning possible from a single unit.
Not sure where you are located. In USA (Im currently in California) I have linked my Android phone to the earthquake pre-warning system and unfortunately had the opportunity to test it out a few times and got around 30 seconds heads-up alert tone from my phone before the shaking started.
Perhaps there are others here that have a pre-alert system with a single sensor and can share how they did that.
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