---
title: "Ionospheric Preparation Zone"
method: GET
path: "/api/v1/frontier/ionospheric/preparation-zone"
tags: ["Seismo-Ionospheric Coupling"]
---

# Ionospheric Preparation Zone

`GET /api/v1/frontier/ionospheric/preparation-zone`

## Request

- Base URL: `https://www.deepmapai.com`
- URL: `https://www.deepmapai.com/api/v1/frontier/ionospheric/preparation-zone`
- Auth: none declared

Compute the Dobrovolsky earthquake preparation zone radius -- no auth required.

Calculates the theoretical preparation zone radius in km using
the Dobrovolsky et al. (1979) empirical relation: r = 10^(0.43*M) km.
This defines the spatial extent over which pre-earthquake
ionospheric perturbations are expected.

Parameters
----------
magnitude : float
    Earthquake magnitude (Mw).

## Query parameters

- `magnitude` number, required: Earthquake magnitude for Dobrovolsky radius computation

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/deepmapai/apis/deepmap-ai.md) · [All operations](https://skmtc.dev/deepmapai/apis/deepmap-ai/llms.txt) · [OpenAPI document](https://skmtc.dev/deepmapai/apis/deepmap-ai/revisions/dab995d977d0?raw)