From Phase Pickers to Seismic Foundation Models
Foundation models ask whether one pretrained representation of seismic waveforms can support picking, detec...
Utpal Kumar, PhD
Earthquakes right now
Magnitude 2.5+ over the past 24 hours.
Loading recent earthquakes…
- 143+ Posts
- 12 Topics
- Jul 2026 Updated
Caffeinate On and Off Controls for macOS with Alfred and SwiftBar
A compact macOS setup with two Alfred workflows for turning caffeinate on and off, plus SwiftBar for keepin...
Recent posts
Recent technical articles on seismic analytics, scientific computing, numerical modeling, and production data workflows.
![Numerical tests on travel time tomography [matlab]](https://earthinversion.s3.us-west-1.amazonaws.com/tomographyModel1.jpg)
Numerical tests on travel time tomography [matlab]
Introduction to the concepts of tomography with equations and codes. Introduction to the concepts of overdetermined, underdetermined and mix-determined probl...
Monte carlo simulation to test for the correlation between two dataset in matlab (codes included)
We test for the correlation coefficients or the covariance between two sets of random numbers selected from normal distribution using the Monte Carlo simulat...
Easy statistical analysis using the tools of matlab (codes included)
Visualize the statistics of the data using MATLAB: mean, median, std, interquartile range, skewness, kurtosis, t-statistic, degrees of freedom
Hypothesis test in matlab (codes included)
Using Randomization to test the disprove the null hypothesis
Topographic map clipped by coastlines in python (codes included)
This post demonstrate how to use Python to set up clip topographic map based on coastlines.
Topographic map with shading in python (codes included)
Generating GMT style shaded relief map in Python
Plotting the geospatial data clipped by coastlines in python (codes included)
In geosciences, we most frequently have to make geospatial plots, but the available data is unevenly distributed and irregular. We like to show the data, in ...
How to plot topographic station map in python (codes included)
We read the station information from a file to plot the 1 arc-minute relief map
Non-linear curve fitting to a model with multiple observational variables in matlab (codes included)
How to fit data to non-linear model
Plotting 1 arc-minute global relief map in python (codes included)
Plotting 1 arc-minute topographic map in python
Estimation of the degrees of freedom of time series in python (codes included)
Two time series with predominant linear trends (very low DOF) can have a very high correlation coefficient, which can hardly be construed as an evidence for ...
Gmt advanced tutorial, part ii (codes included)
Plotting publishable quality maps using generic mapping tools (GMT)
Interactive data visualization in python using bokeh
A basic to advanced guide to making interactive plots in Bokeh.
![Why we should use generators? [python]](https://earthinversion.s3.us-west-1.amazonaws.com/results_generators.png)
Why we should use generators? [python]
Generators don’t hold the entire result in memory. It yields one result at a time.
Numerical tests on travel time tomography [matlab]
Introduction to the concepts of tomography with equations and codes. Introduction to the concepts of overdetermined, underdetermined and mix-determined probl...
Monte carlo simulation to test for the correlation between two dataset in matlab (codes included)
We test for the correlation coefficients or the covariance between two sets of random numbers selected from normal distribution using the Monte Carlo simulat...
Easy statistical analysis using the tools of matlab (codes included)
Visualize the statistics of the data using MATLAB: mean, median, std, interquartile range, skewness, kurtosis, t-statistic, degrees of freedom
Hypothesis test in matlab (codes included)
Using Randomization to test the disprove the null hypothesis
Topographic map clipped by coastlines in python (codes included)
This post demonstrate how to use Python to set up clip topographic map based on coastlines.
Topographic map with shading in python (codes included)
Generating GMT style shaded relief map in Python
Plotting the geospatial data clipped by coastlines in python (codes included)
In geosciences, we most frequently have to make geospatial plots, but the available data is unevenly distributed and irregular. We like to show the data, in ...
How to plot topographic station map in python (codes included)
We read the station information from a file to plot the 1 arc-minute relief map
Non-linear curve fitting to a model with multiple observational variables in matlab (codes included)
How to fit data to non-linear model
Plotting 1 arc-minute global relief map in python (codes included)
Plotting 1 arc-minute topographic map in python
Estimation of the degrees of freedom of time series in python (codes included)
Two time series with predominant linear trends (very low DOF) can have a very high correlation coefficient, which can hardly be construed as an evidence for ...
Gmt advanced tutorial, part ii (codes included)
Plotting publishable quality maps using generic mapping tools (GMT)
Interactive data visualization in python using bokeh
A basic to advanced guide to making interactive plots in Bokeh.
Why we should use generators? [python]
Generators don’t hold the entire result in memory. It yields one result at a time.