seisman
HinetPy
Python

A Python package for accessing and processing NIED Hi-net seismic data.

Last updated Jun 24, 2026
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README

Tests codecov GitHub release PyPI version Python versions License JOSS Zenodo

NIED Hi-net | Source Code | Documentation | δΈ­ζ–‡ζ–‡ζ‘£


HinetPy is a Python package for accessing and processing seismic data from NIED Hi-net.

Key Features

  • Facilitates easy access to NIED Hi-net seismic data, including continuous/event
waveform data and event catalogs.
  • Supports multiple seismic networks (e.g., F-net, S-net, MeSO-net and more in addition
to Hi-net) in Japan.
  • Selects a subset of stations based on geographical location or station name (supports
Hi-net, F-net, S-net and MeSO-net only).
  • Converts waveform data to SAC format and instrumental responses to SAC polezero files.
  • Speeds up the downloading and processing workflow via the use of multithreading.

A Simple Example

Here is an example showing how to use HinetPy to request continuous waveform data from Hi-net, convert the data into SAC format, and extract instrumental responses as SAC polezero files.

from HinetPy import Client, win32

You need a Hi-net account to access the data

client = Client("username", "password")

Let's try to request 20-minute data of the Hi-net network (with an internal

network code of '0101') starting at 2010-01-01T00:00 (JST, GMT+0900)

data, ctable = client.getcontinuouswaveform("0101", "201001010000", 20)

The request and download process usually takes a few minutes

waiting for data request ...

waiting for data download ...

Now you can see the data and corresponding channel table in your working directory

waveform data (in win32 format) : 010120100101000020.cnt

channel table (plaintext file) : 0101_20100101.ch

Let's convert data from win32 format to SAC format

win32.extract_sac(data, ctable)

Let's extract instrument response as PZ files from the channel table file

win32.extract_sacpz(ctable)

Now you can see several SAC and SAC_PZ files in your working directory

N.NGUH.E.SAC N.NGUH.U.SAC N.NNMH.N.SAC

N.NGUH.N.SAC N.NNMH.E.SAC N.NNMH.U.SAC

...

N.NGUH.E.SACPZ N.NGUH.U.SACPZ N.NNMH.N.SAC_PZ

N.NGUH.N.SACPZ N.NNMH.E.SACPZ N.NNMH.U.SAC_PZ

...

Citation

If you find this package useful, please consider citing the package in either of the following ways:

Cite the HinetPy paper (preferred)

A formal paper is published in The Journal of Open Source Software since HinetPy v0.9.0. This is the preferred way for citation.

Tian, D. (2024). HinetPy: A Python package for accessing and processing NIED Hi-net
seismic data. Journal of Open Source Software, 9(98), 6840.
https://doi.org/10.21105/joss.06840

Cite a specific HinetPy version

If you'd like to cite a specific HinetPy version, you can visit Zenodo, choose the version you want to cite, and cite like this:

Tian, D. (20XX). HinetPy: A Python package for accessing and processing NIED Hi-net
seismic data (X.X.X). Zenodo. https://doi.org/10.5281/zenodo.xxxxxxxx

Contributing

Feedback and contributions are welcome. Please feel free to open an issue or pull request if you have any suggestions or would like to contribute a feature. For additional information or specific questions, please open an issue directly.

License

This project is licensed under the terms of the MIT license.

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