The text is structured in a straightforward, informative manner. It begins with a general statement about countries and regions that experience frequent earthquakes, specifically naming Japan and California. This sets the context for the discussion.
Next, the text introduces the concept of seismic design or "earthquake-proofing" as a necessary practice in these areas. This transition from a general observation to a specific action taken in response to the observation is a common structure in informative writing.
Overall, the structure can be broken down into three main components:
- Introduction of the issue: Mentioning countries and regions prone to earthquakes.
- Identification of a solution: Introducing the concept of seismic design or earthquake-proofing.
- Definition/explanation of the concept: Implicitly suggesting the need for buildings to withstand earthquakes, which could lead to further elaboration if the text were to continue.
This structure effectively conveys relevant information in a clear and logical way.