Glossary

The overlying side of a non-vertical fault surface.

The historical record of ca. pre-XXth century earthquakes that have been parameterized in specific historical catalogues.

Housing denotes the place where the recording instrument is located.

Housner Intensity response spectrum intensity

Cut-off frequency [Hz] of the higth-pass filter.

Ratio of the Responce Spectrum of horizontal (vectorial sum) and vertical components of earthquake ground motions

Ratio of the Fourier Amplitude Spectrum of horizontal (vectorial sum) and vertical components of ambient noise

A point in the Earth (also called earthquake focus) where the rupture of the rocks initiates during an earthquake.

The Hypocentral depth is the distance between the hypocenter and the epicenter of the earthquake (see Fault Distance).

The distance between the site and the earthquake hypocenter.

The historical record of ca. pre-XXth century earthquakes that have been parameterized in specific historical catalogues.