Finding Tiny Earthquakes by Their Fingerprints
A three-station seismic matched-filter experiment shows how repeating waveform shapes reveal small earthqua...
Utpal Kumar, PhD
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- 153+ Posts
- 12 Topics
- Nov 2026 Updated
What an Agent Harness Does
Follow a CSV export task to see how an agent harness connects model decisions to tools, permissions and che...
Recent posts
Recent technical articles on seismic analytics, scientific computing, numerical modeling, and production data workflows.
How to link unsplash images directly to your jekyll blog
How can you link unsplash images directly to your blog without hosting it locally.
How to extract station data from the web page
Uses pandas to read the html page and extract the html data into pandas dataframe
How to plot the earthquakes data on a topographic map
Read the earthquake data from a csv file and overlay on a topographic map using PyGMT.
How to automatically enquire the availability of seismic data using obspy
In this post, we will see how can we retrive the available seismic waveforms information for a given network, station, channel and client in a given period o...
How to implement the iterative newton–raphson method to find roots of a function in python
The Newton–Raphson method (commonly known as Newton’s method) is developed for finding roots of a given function or polynomial iteratively. We show two examp...
How to host a http server on your linux computer to share files
Spin up a zero-dependency web server with Python’s built-in http.server to share files or preview a site on your local network.
How effective is the signal denoising using the matlab based wavelet analysis
We see how to download seismic waveforms, convert them into mat format from mini-seed and then perform denoising using wavelet analysis. We first performed w...
Make your python script executable from anywhere in linux
Follow the instructions to make your python script executable from anywhere in Linux system.
How to securely send data from local client to remote server using paramiko (codes included)
Paramiko module can be used in Python to securely send data from the local client to the remote server. It is analogous to the SSH and SCP in Linux.
Towards multi-resolution analysis with wavelet transform
We will learn the basic concepts of wavelet tranform and multi-resolution analysis starting from the Fourier Transform, and Gabor Transform.
Empirical orthogonal function analysis to inspect the spatial coherency in the geospatial data (codes included)
Empirical Orthogonal Functions analysis decomposes the continuous space-time field into a set of orthogonal spatial patterns along with a set of associated u...
Concatenating daily seismic traces into one miniseed file (codes included)
I concatenate the daily seismic traces for 15 days into one miniseed file for further analysis. Then I obtained the spectrogram of the 15 days seismic data. ...
Computing cross-correlation and spectrogram of two seismic traces (codes included)
Read the seismic traces from the miniseed files and compute the cross-correlation and spectrogram
Principal component analysis to decompose signals and reduce dimensionality (codes included)
Use Principal Component Analysis (via SVD) to decompose a space-time signal into a few dominant modes and reduce its dimensionality, with Python code.
How to link unsplash images directly to your jekyll blog
How can you link unsplash images directly to your blog without hosting it locally.
How to extract station data from the web page
Uses pandas to read the html page and extract the html data into pandas dataframe
How to plot the earthquakes data on a topographic map
Read the earthquake data from a csv file and overlay on a topographic map using PyGMT.
How to automatically enquire the availability of seismic data using obspy
In this post, we will see how can we retrive the available seismic waveforms information for a given network, station, channel and client in a given period o...
How to implement the iterative newton–raphson method to find roots of a function in python
The Newton–Raphson method (commonly known as Newton’s method) is developed for finding roots of a given function or polynomial iteratively. We show two examp...
How to host a http server on your linux computer to share files
Spin up a zero-dependency web server with Python’s built-in http.server to share files or preview a site on your local network.
How effective is the signal denoising using the matlab based wavelet analysis
We see how to download seismic waveforms, convert them into mat format from mini-seed and then perform denoising using wavelet analysis. We first performed w...
Make your python script executable from anywhere in linux
Follow the instructions to make your python script executable from anywhere in Linux system.
How to securely send data from local client to remote server using paramiko (codes included)
Paramiko module can be used in Python to securely send data from the local client to the remote server. It is analogous to the SSH and SCP in Linux.
Towards multi-resolution analysis with wavelet transform
We will learn the basic concepts of wavelet tranform and multi-resolution analysis starting from the Fourier Transform, and Gabor Transform.
Empirical orthogonal function analysis to inspect the spatial coherency in the geospatial data (codes included)
Empirical Orthogonal Functions analysis decomposes the continuous space-time field into a set of orthogonal spatial patterns along with a set of associated u...
Concatenating daily seismic traces into one miniseed file (codes included)
I concatenate the daily seismic traces for 15 days into one miniseed file for further analysis. Then I obtained the spectrogram of the 15 days seismic data. ...
Computing cross-correlation and spectrogram of two seismic traces (codes included)
Read the seismic traces from the miniseed files and compute the cross-correlation and spectrogram
Principal component analysis to decompose signals and reduce dimensionality (codes included)
Use Principal Component Analysis (via SVD) to decompose a space-time signal into a few dominant modes and reduce its dimensionality, with Python code.