Don’t quite understand how this can be earthquake-proof. https://twitter.com/SAI/status/880242601315766273

Don’t quite understand how this can be earthquake-proof.

Enterprise Blockchain with Hyperledger: An Introduction to Sawtooth, Fabric, Cello, Composer, and Hyperledger Explorer
5.0 out of 5 stars(3)
Available for Amazon Prime $17.46 (as of 2023/12/09 10:16 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Blockchain with Hyperledger Fabric: Build decentralized applications using Hyperledger Fabric 2, 2nd Edition
4.8 out of 5 stars(21)
Available for Amazon Prime $54.99 (as of 2023/12/09 10:16 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Hands-On Smart Contract Development with Hyperledger Fabric V2: Building Enterprise Blockchain Applications
4.0 out of 5 stars(8)
Available for Amazon Prime 45% Off $79.99 $43.99 (as of 2023/12/09 10:16 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Blockchain Development with Hyperledger: Build decentralized applications with Hyperledger Fabric and Composer
4.0 out of 5 stars(8)
Available for Amazon Prime 51% Off $51.99 $25.11 (as of 2023/12/09 10:16 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Hands-On Blockchain with Hyperledger: Building decentralized applications with Hyperledger Fabric and Composer
3.9 out of 5 stars(37)
Available for Amazon Prime 9% Off $54.99 $49.98 (as of 2023/12/09 10:16 GMT +08:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)