Geogiga Microtremor - Version 9.3 -Microtremor Measurements

Data input

• Load 3-component data
• Support SEG-2, SEG-Y, SEG-D, ASCII, SAF, miniSEED, and other data formats

Data processing

• Frequency filtering with multi-step undo and redo
• Select time segments tapered with Hanning, Hamming, or boxcar window
• Analyze amplitude or power spectrum
• Generate HVSR (horizontal-to-vertical spectral ratio)

Output

• Predominant period, frequency, and amplitude
• Overburden thickness