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Calculation tools and technical texts developed at Galindo Ingeniería, for structural engineers, researchers and students. No sign-up, no cost.

Artificial accelerogram generated with Earthquake 2025 · example 1, ASCE 7

Earthquake 2025

Software · version 1.5.1

Spectrum-compatible artificial accelerograms

Turns the code response spectrum into an artificial earthquake in time, ready for linear or nonlinear analysis of your structure, even with seismic isolation or dampers. It is the desktop application for earthquake_2025, the program by Dr. Mario Galindo Queralt, with more than 30 years of development.

Windows 10 and 11 · 64-bitFree · MIT licenseEnglish and Spanish
Download installerRecommended · .exe · 62 MB Portable versionNo install · .zip · 89 MB

The installer does not require administrator rights and includes the calculation program, the monograph and the 11 examples. A Linux version is in preparation.

Learn about the program Watch the video guide
Start screen with ready-to-load examples
8seismic codes in the wizard
~1%typical difference from the target spectrum
11ready-to-use examples
10charts and a PDF report per run
How it works

From the code spectrum to an earthquake in time

Step 1

Define the target

Enter the design spectrum point by point or build it with the wizard for ASCE 7, Eurocode 8, NBCC, BSL, NCh433, CFE-MDOC, NTE E.030 or NBDS-2023 (Bolivia).

Step 2

Generate and refine

The hybrid method first fits the signal in frequency, then refines it in time with corrective wavelets. You follow convergence live.

Step 3

Review and export

Get PGA, PGV, Arias, CAV and D5-95 duration, the ten analysis charts and a folder with a PDF report, Excel and CSV.

User guide

Learn to use it in 5 minutes

A step-by-step walkthrough with example 1: input data, target spectrum, run and reading the results.

Video · 4:58 · in Spanish, with Spanish subtitles
Monograph

The book that explains the method

Simulation of Seismic Ground Motions for Structural Time-History Analysis

Fundamentals, methodology and the earthquake_2025 program · Dr. Mario Galindo Queralt · 166 pages

From the seismic phenomenon and intensity measures to accelerogram generation, time-history analysis and seismic protection with isolation and dampers. Includes a complete case study: from the ASCE 7 spectrum to the analysis of a reinforced concrete building.

How to cite itGalindo Queralt, M. (2025). Simulation of Seismic Ground Motions for Structural Time-History Analysis. Galindo Ingeniería, La Paz.

Sample report

See what every run delivers

Each run produces its own PDF report with your company branding: input data, target spectrum, main results, spectra and time histories. This is the one for example 1.

View sample reportPDF · 6 pages · 131 KB
Before you download

Requirements and verification

Requirements

Windows 10 or 11, 64-bit. No administrator rights needed. Linux: in preparation.

Open source

Program and monograph under the MIT license: free to use, study and share.

Verifiable download

Compare the SHA-256 checksum of the downloaded file with this list to confirm it arrived complete.

SHA-256 checksums

On Windows: open PowerShell in your downloads folder and type Get-FileHash file-name.

Earthquake2025-1.5.1-Windows-x64-Setup.exed6e97386b8535152ed175c95dc3e4c80785221afe5930047b7415a6c03eee2fc
Earthquake2025-1.5.1-Windows-x64-portable.zip76875723af290638f0f4e4d04aee5fd6df75490aa38daf10d981165ed7e06e3b
monografia_earthquake_letter_es.pdfbe4b90f60fe7385f3581d7a3ff1a17cf6b4b0b381966da1ad84a8b9beb91477c
monografia_earthquake_a4_es.pdf3ffa4db1566a45d3260809e46a6c7ba1ca68e60774581b0ee5c409e9de50c7ff
monograph_earthquake_letter_en.pdf7e4976c5cab4c6fdccd3f148c1ef80cdd0020d7d9d1f1b8c83a82b1a87b07864
monograph_earthquake_a4_en.pdf8b1db1aac76232dd20b7c2a6789315e21536aca429c48af2d028d24e8ebe9305

Need artificial earthquakes for your project?

We generate code-compatible accelerograms and run the time-history analysis of your structure, like the 16 artificial earthquakes for the El Dorial Building.