I’ve heard a few people say this. I’m curious about where that is coming from.
Siesmographs show that looser soil produces higher amplitude waves, which is much more dangerous. Bedrock produces smaller, but more frequent waves. When you build in earthquake country, the modern goal is usually to drill pillars down to bedrock.
I’ve heard a few people say this. I’m curious about where that is coming from.
Siesmographs show that looser soil produces higher amplitude waves, which is much more dangerous. Bedrock produces smaller, but more frequent waves. When you build in earthquake country, the modern goal is usually to drill pillars down to bedrock.
https://www.iris.edu/hq/inclass/animation/buildings__bedrock_effects_of_amplification__liquefaction