Catalog
Compile earthquakes for the study region and period.
Methodology
How SERRA works.
A concise view of the physical-energy workflow, from seismic catalogs to engineering-oriented interpretation.
Step 1
Transform the seismic catalog into physical energy.
Historical earthquakes are organized in time and transformed from magnitude into released-energy values. The resulting series makes differences in physical energy much more explicit than the logarithmic magnitude scale.
Energy transformation
Convert magnitude values into energy estimates using the adopted magnitude–energy relationship.
Temporal analysis
Aggregate and compare energy through time to identify changes in seismic behavior.
Step 2
Interpret seismically active systems.
SERRA uses SIGSA as a framework for grouping and interpreting seismic behavior at the scale of integrated active systems rather than considering isolated events alone.
The objective is to connect spatial concentration, temporal energy behavior and engineering significance within a coherent regional interpretation.
Step 3
Translate analysis into maps and engineering parameters.
The framework connects energy history with spatial risk interpretation and can support the derivation or discussion of equivalent magnitude, attenuation and design acceleration for engineering applications.
See it operating
Open the historical seismic demonstration.
The prototype provides a direct way to understand the operational direction of the framework.