# Earthquake
[earthquake](https://raw.githubusercontent.com/Alpaca4d/alpaca4d.github.io/main/doc/examples/earthquake/earthquake.gh)
This example illustrates a simple nonlinear dynamic analysis under earthquake loading.\
Use it to understand how to combine time series, uniform excitation load patterns and recorders, and then adjust the ground‑motion input or structural properties to study changes in the dynamic response.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://alpaca4d.gitbook.io/docs/examples/earthquake.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
