An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

CCT 1.0.13 Released


Home News

The Coda Calibration Tool (CCT) calculates reliable moment magnitudes for small- to moderate-sized seismic events. This release adds two significant features including energy calculations (BETA) and a new data table filter feature. The current beta code integrates theoretical spectra to determine empirically the necessary integration constant to give the correct energy value. In the final version of the code, this will be tied to the analytical form of the seismic energy.

Learn more: