Please also take a look at the set of videos provided by the CPPS in Switzerland here.
Types of Earthquakes
Earthquakes and seismic waves
What’s inside a geophone? (as in the RaspberryShake-1D)
2015 earthquake, two videofootages
Earthquake drill in a primary school in Greece (by Adam Whitaker)
2018 Alaska videofootage: watch what the teacher does and says in the real event!