Resilient cities, that is, when disasters occur, resilient cities can withstand shocks, respond quickly, recover, keep urban functions up and running, and better respond to future disaster risks through adaptation. As a sudden and destructive natural disaster, earthquake disasters have far-reaching social impact and greater defense difficulties, so building earthquake-resilient cities has become an important part of the resilient city system.
Seismometers have a long history of development as the main instruments for seismic motion measurement and geophysical surveys. In recent years, node seismometers have gradually replaced traditional cable instruments, and with their unconstrained and flexible characteristics, they have been widely used in applications such as engineering site surveys, urban underground three-dimensional structure detection, and dense arrays around the world.
It is not only seismic instruments that are advancing with the times, but also the emergence of various emerging geophysical detection technologies that also make important guiding significance for pre-construction project site selection and post-construction risk assessment. With the maturity of wireless communication technologies such as 4G and 5G, combined with cloud platforms and cloud storage, it has become a future development direction to create a digital twin city for earthquakes, providing a basis for disaster risk investigation and key hidden danger investigation.
