Useful Seismic Tools

---

✏️ ✏️ ✏️

⬇️ Seismic Data Processing

• 0️⃣ 1️⃣ SAC Seismic data pre-processing and plot.

• 0️⃣ 2️⃣ ObsPy Read data (SEED, MiniSEED, SAC, SEDY and so on.)

• 0️⃣ 3️⃣ PyWEED Retrieve earthquake-based seismic data with interactive steps (Python version of JWEED).

---

✏️ ✏️ ✏️

⬇️ Convert Seismic Data

• 0️⃣ 1️⃣ rdseed SEED -> SAC.

• 0️⃣ 2️⃣ ObsPy SEED -> SAC MiniSEED -> SAC SEDY -> SAC

• 0️⃣ 3️⃣ mseed2sac MiniSEED -> SAC

---

✏️ ✏️ ✏️

⬇️ Travel time, ray parameter and ray path calculation

• 0️⃣ 1️⃣ TauP Travel time, incident, takeoff, ray parameter and ray path calculation and show.

• 0️⃣ 2️⃣ ObsPy TauP TauP implemented by ObsPy.

• 0️⃣ 3️⃣ Cake Cake is a tool which can be used to solve classical seismic ray theory problems for layered earth models (layer cake models).

• 0️⃣ 4️⃣ FM3D 3D FAST MARCHING CODE.

• 0️⃣ 5️⃣ pySeismicFMM Calculating 3-D travel times by FAST MARCHING.

• 0️⃣ 6️⃣ ANISOtime Calculating travel times in homogeneous layers, transversely isotropic (TI), spherically symmetric medium.

• 0️⃣ 7️⃣ fteikpy A Python library that computes accurate first arrival traveltimes in 2D and 3D heterogeneous isotropic velocity models.

---

✏️ ✏️ ✏️

⬇️ Visualization

• 0️⃣ 1️⃣ GMT
  Almost the most usual mapping software in geophysical field.

• 0️⃣ 2️⃣ matplotlib
  Not only in seismology, it's useful to plot beautiful figures.

• 0️⃣ 3️⃣ SAC
  Plot simple figures and seismic data processing.

• 0️⃣ 4️⃣ PSSAC
  Show seismic waveforms calling GMT coomand.

• 0️⃣ 5️⃣ POV-Ray
  Apply colors to drawing and it's beautiful.

• 0️⃣ 6️⃣ ECharts
  Awesome figures, tables building created by BAIDU Inc and implemented by JavaScript.

• 0️⃣ 7️⃣ PyECharts
  A python library implementing ECHarts.

• 0️⃣ 8️⃣ObsPy
  Spectragram, beachball or seismic data processing.

• 0️⃣ 9️⃣ Snuffler
  View seismic waveforms.

• 1️⃣ 0️⃣ Desmos
  Demo of graphs of functions.

• 1️⃣ 1️⃣ GeoGebra
  Geometry Algebra, an amazing tool.

• 1️⃣ 2️⃣ Mathematica

  Data processing, visualization, numerical and symbolic computation.

• 1️⃣ 3️⃣ Obtaining colors

  You can get these colors on line when you upload your picture

• 1️⃣ 4️⃣ Choosing colors

  There are many colors and you can choose them if necessary.

• 1️⃣ 5️⃣ PyVista

  An awesome visualization tool for 3D shapes.

---

✏️ ✏️ ✏️

⬇️ Synthetic Seismograms

• 0️⃣ 1️⃣ Fomosto Computing synthetic and store seismograms.

• 0️⃣ 2️⃣ fk Computing synthetic seismograms in horizontal layered medium.

• 0️⃣ 3️⃣ DSM Synthesizing seismograms in homogeneous layers, transversely isotropic (TI), spherically symmetric medium with Direct Solution Method (DSM).

• 0️⃣ 4️⃣ yaseis Computing synthetic seismograms inhomogeneous layers, transversely isotropic (TI), spherically symmetric medium.

• 0️⃣ 5️⃣ Mineos Computing synthetic seismograms in a spherically symmetric non-rotating Earth by summing normal modes.

• 0️⃣ 6️⃣ SOFI2D Computing 2-D PSV wavefield in viscoelastic medium with finite difference method.

• 0️⃣ 7️⃣ SOFI2D-sh Computing 2-D SH wavefield in viscoelastic medium with finite difference method.

• 0️⃣ 8️⃣ SOFI3D ` Computing 3-D wave field in viscoelastic medium with finite difference method.

• 0️⃣ 9️⃣ sw4 3-D seismic modeling with finite difference method.

• 1️⃣ 0️⃣ OpenSWPC 2/3-D seismic wave propagation modeling with finite difference method.

• 1️⃣ 1️⃣ AxiSEM AxiSEM is a parallel spectral-element method to solve 3D wave propagation in a sphere with axisymmetric or spherically symmetric visco-elastic, acoustic, anisotropic structures.

• 1️⃣ 2️⃣ NEXD NEXD: A SOFTWARE PACKAGE FOR HIGH ORDER SIMULATION OF SEISMIC WAVES USING THE NODAL DISCONTINUOUS GALERKIN METHOD.

• 1️⃣ 3️⃣ PRINCETON GEODYNAMICS SOFTWARES

---

✏️ ✏️ ✏️

⬇️ Focal mechanism

• 0️⃣ 1️⃣ gCAP Inversion of seismic source parameters with generalized Cut And Paste (gCAP) method.

• 0️⃣ 2️⃣ pydmt Time Domain Moment Tensor Inversion,

• 0️⃣ 3️⃣ HASH First motion polarity.

• 0️⃣ 4️⃣ focmec Determine and display focal mechanism.

• 0️⃣ 5️⃣ WPhase W Phase source inversion. Fast and reliable moment tensor estimation.

---

✏️ ✏️ ✏️

⬇️ Earthquake location

• 0️⃣ 1️⃣ HypoDD HypoDD is a Fortran computer program package for relocating earthquakes with the double-difference (DD) algorithm.

---

✏️ ✏️ ✏️

⬇️ Ray tracing

• 0️⃣ 1️⃣ scikit-fmm scikit-fmm is a Python extension module which implements the fast marching method.

---

✏️ ✏️ ✏️

⬇️ Numerical computation

• 0️⃣ 1️⃣ GSL The GNU Scientific Library (GSL) is a numerical library implemented by C and C++.

---

✏️ ✏️ ✏️

⬇️ Blog notes

SeisMan

SeisMan's blogs

Geophydog

Geophydog's blog

---

✏️ ✏️ ✏️

⬇️ Forward modeling and inversion

Surface wave topics

• 0️⃣ 1️⃣ disba A python library of computing synthetic dispersion curve from Computer Programs in Seismology (CPS) with numba.

• 0️⃣ 2️⃣ pysurf96 A python library of surf96 from Computer programs in seismology for computing dispersion curves.

• 0️⃣ 3️⃣ CC-FJpy A python library of extracting multimodal dispersion curves from ambient noise or event data.

• 0️⃣ 4️⃣ DisbaTomo Dispersion curve inversion with the BFGS optimization algorithm.

General forward and inversion problems

• 0️⃣ 1️⃣ PyGimli Multi-method modelling and inversion in geophysics.

to be continued