California Geological Survey Liquefaction Demonstration 

very clear, thanks!!

Thanks Great Video 👍👍👍👍

I have that same photo I took after 1993 N.ridge quake too.

Now we know why the boat like foundation are the best

great demonstration, thank you Cindy!

Straight to the point and simple. Thanks.

I'm a teacher and I think this is good teaching!!! thank you!

Thank you for such an informative video!

very educational, I am from Perú and hope never go through this. Thank You.

Nice demo, thanks

Excelente representacion y demostracioin ,espero que continue subiendo este tipo de videos que son muy didacticos y de valioso aporte . Muchas gracias

poor japan

so so nice thank you for your video

👉💒💒💒💒💒💒