---
title: "Power Grid Extract Harmonics"
method: POST
path: "/api/v1/frontier/power-grid/extract-harmonics"
tags: ["Power Grid Harmonic Seismic Imaging"]
---

# Power Grid Extract Harmonics

`POST /api/v1/frontier/power-grid/extract-harmonics`

## Request

- Base URL: `https://www.deepmapai.com`
- URL: `https://www.deepmapai.com/api/v1/frontier/power-grid/extract-harmonics`
- Auth: none declared

Extract the 60 Hz power-grid signal from seismic data.

Applies narrow-band filtering around 60 Hz and its harmonics
(120, 180, ... Hz) to isolate the grid-coupled vibration from
the broadband seismic record.

Parameters (JSON body):
- seismic_data : dict -- Seismic waveform data (required)
- sample_rate_hz : float -- Sample rate in Hz (required)

**Pricing:** Included in subscription tiers (legacy list price: GET /api/v1/billing/pricing).

## Query parameters

- `x_api_key` string, nullable

## Request body

- object

## 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)