https://www/youtube.com/watch?v=ovjtEVbtPCo
We just use 2 bench protectors with 4 ping pong balls sandwiched between them and 2 giant elastic bands around them. We then clamp the bottom protector to the bench. The students pull on and let go of the top bench protector to make it wobble.
Also a few links if you’re after more of an earthquake model, rather than a shaker table:
If you can afford it tower:
PASCO have a tower in their Structures area that can simulate a tall building – https://www.pasco.com/products/lab-apparatus/structures/shaking-tower
It is aimed at examining the resonance modes and the effectiveness of passive damping – https://www.pasco.com/products/lab-apparatus/structures/shaking-tower-experiment
Assembly required and it may be quite expensive, particularly if you want an accelerometer for every floor and associated PASCO data logger.
Here is a link to a YT video of the apparatus – https://www.youtube.com/watch?v=fv4T_rnsUh4
Build your own tower:
A cruder version may be built with some wooden blocks as the floors and hacksaw blades as the vertical structural members.
The blades would have to all have the same orientation and cross-bracing should not be used, otherwise the structure will be too stiff.
It would be constructed like a vertical wig-wag inertia balance, but with multiple levels and a hacksaw blade at each of the four corners.
The wooden blocks should be thick enough so that two blade connections can be made at each corner without the blades overlapping each other.
Flat spring steel or strapping steel could be used but hacksaw blades are probably easiest to source.
Inertia Balance video – https://www.youtube.com/watch?v=WCDRDx-ika8
Models:
There are numerous fixed, models available to show plate tectonics processes.
MTA list some on their website – https://www.teaching.com.au/search?q=tectonics
Demos:
There are demo sets, such as shown on Flinn Scientific’s website – https://www.flinnsci.com/tectonics-model—demonstration-kit/ap7178/
Spectrum have a similar item – https://spectrumed.ca/en/tectonics-model-set
These items may provide ideas for an apparatus you could build inhouse.