Earthquakes, Earth's structure, and related methodology.

• Array seismology
• Earthquake bulletins/catalogues
• Educational resources
• Fibre optic sensing
• Imaging
• Inversion & Inference
• Machine learning
• Marine seismology
• Observatory operation
• Phase picking and association
• Raytracing
• Seismic data access
• Seismic data handling
• Seismic interferometry and ambient noise
• Source parameter estimation
• Synthetic seismograms

• acoular - Acoustic testing and source mapping software.
• B3AM & B3Ampy - Toolbox for easy and fast beamforming analysis of three-component array data.
• beampower - Beamforming (or backprojection) of seismic signal for event detection and location.
• covseisnet - Array covariance matrix analysis.
• fast_beamforming - Fast and efficient beamforming in Python.
• TwistPy - Toolbox for wavefield inertial sensing techniques.

• BGR - Bulletin of the Federal Institute for Geosciences and Natural Resources, Germany.
• EMSC - Bulletin of the Euro-Mediterranean Seismological Centre.
• GEOFON - Bulletin of the GeoForschungsZentrum Potsdam, Germany.
• Geosphere Austria - Bulletin of the Geosphere Austria.
• Global CMT - Bulletin of the Global Centroid-Moment-Tensor (CMT) Project.
• IGN - Bulletin of the Instituto Geografico Nacional, Spain.
• INGV - Bulletin of the Instituto Nazionale Di Geofisicia e Vulcanologia, Italy.
• ISC - Bulletin of the International Seismological Centre, UK.
• ROB - Bulletin of the Royal Observatory of Belgium.
• SED - Bulletin of the Swiss Seismological Service, Switzerland.
• USGS - Bulletin of the US Geological Survey, USA.

• seismo-live - Live jupyter notebooks for seismology.

• awesome-das - Curated list of awesome resources for Distributed Acoustic Sensing (DAS).
• DASCore - Python library for distributed fiber optic sensing.
• DASPack - Controlled data compression for Distributed Acoustic Sensing.
• dastools - Tools to work with data generated by DAS systems.
• Lightguide - Package for handling, filtering and modelling Distributed Acoustic Sensing (DAS) data.
• Xdas - Python library for managing, processing and visualizing Distributed Acoustic Sensing (DAS) data.

• MSNoise-Tomo - Plugin to the MSNoise framework for 2D tomography.
• PyGLImER - Workflow to create a global database for Ps and Sp receiver function imaging.
• SeisLib - Python package that allows for obtaining seismic images of the sub-surface.

• BayesBay - Generalised trans-dimensional and hierarchical Bayesian inference.
• GeoBED - Optimal experimental design tailored to geoscientific applications.
• pyGIMLi - Multi-method modelling and inversion in geophysics.

• DeepDenoiser - Seismic signal denoising and decomposition using deep neural networks.
• SeisBench - Python toolbox for machine learning in seismology.
• scatseisnet - Transform time series into scattering coefficients with a scattering network.

• OBSTools - Processing broadband ocean-bottom seismic data.
• OCloC (OBS Clock Correction) - Detect and correct timing errors when using passive seismic records.

• Antelope - Real time Earth monitoring for a dynamic world.
• Earthworm - Waveform and automatic earthquake processing software.
• SEISAN - Earthquake analysis software.
• SeisComP - Seismological software for data acquisition, processing, distribution and interactive analysis.

• EQTransformer - AI-based earthquake signal detector and phase picker.
• GaMMA - Gaussian Mixture Model Associator.
• OBSTransformer - A Deep Learning Seismic Phase Picker for OBS Data.
• PhaseNet - Deep-neural-network-based seismic arrival time picking method.
• PyOcto - High-throughput seismic phase associator.

• TauP - Seismic travel time calculator.
• Cake (pyrocko) - 1D travel-time and ray-path computations.
• scikit-fmm - Fast Marching Method for Python.
• pykonal - Fast Marching Method in cartesian or spherical coordinates in 2 or 3 dimensions.

• EarthScope (formerly IRIS) - Waveform and event data access, US based.
• EIDA (ORFEUS) - Waveform and event data access, EU based.
• FDSN network codes - List of all seismic network codes assigned by the FDSN.
• STEAD - STanford EArthquake Dataset (STEAD):A Global Data Set of Seismic Signals for AI.

• ObsPy - Python framework for processing seismological data.
• Pyrocko - Open source seismology toolbox and library.
• SeisGo - Ready-to-go Python toolbox for seismic data analysis.
• SeisKit.jl - Fast IO operations with SEG-Y files and other basic utilities for working with seismic data.
• Seismic Unix - Seismic processing, research, and educational software package.
• Seis.jl - Open, fast and flexible framework for analysing seismic data in Julia.

• MSNoise - Python package for monitoring using ambient seismic noise.
• NoisePy - Fast and easy computation of ambient noise cross-correlation functions.
• noisi - Ambient noise cross-correlation modeling and inversion.
• SANS - Seismic ambient noise source maps.
• SeisNoise.jl - Fast and easy ambient noise cross-correlation.
• SeisMIC - Seismological monitoring using interferometric concepts.
• WMSAN - Wave model sources of ambient noise.

• Grond (pyrocko) - Probabilistic source optimization.
• BEAT (pyrocko) - Bayesian Earthquake Analysis Tool.
• BPMF - Earthquake detection and location with GPU-accelerated processing.
• focmec - Package for determining and displaying earthquake focal mechanisms.
• GrowClust3D - Relative relocation of earthquake hypocenters based on waveform cross-correlation data.
• HypoDD - Double-difference earthquake location algorithm
• NonLinLoc - Non-Linear locations.
• Qseek (pyrocko) - The friendly earthquake detector.
• Simul2023 - Inversion of earthquake data for 3-D velocity and hypocenters or 3-D Q.
• SKHASH - Earthquake focal mechanism inversions.

• AxiSEM - Axially symmetric Spectral Element Method (2.5D).
• AxiSEM3D - Axially symmetric Spectral Element Method (3D).
• Axitra - Seismograms in 3D plane layered medium.
• Computer Programs in Seismology - Package of programs for making synthetic seismograms.
• disba - Surface wave dispersion modeling.
• Fomosto (pyrocko) - Calculate and manage Green's function databases.
• instaseis - Instant global seismograms based on a broadband waveform database.
• Mineos - Compute synthetic seismograms in a spherically symmetric non-rotating Earth by summing normal modes.
• PyFK - Python port of FK used to calculate the Green's function and the synthetic waveforms for the 1D Earth model.
• SeisSol - Software package for simulating wave propagation and dynamic rupture.
• SPECFEM - Open-source spectral-element method software codes for computational seismology.
• SW4 - Seismic waves, 4th order accuracy.