1. Component: E Local quakes Broad frequency Two tremor bursts
AZ.PFO
PB.B084
PB.B084
PB.B084 spectrogram
PB.B Hz band-pass filtered
Local quakes
Broad frequency
Two tremor bursts
Peaked at 4 Hz

2. Component: N AZ.PFO PB.B084 PB.B084 spectrogram
PB.B Hz band-pass filtered

3. Component: Z Two tremor bursts Peaked at 10 Hz AZ.PFO PB.B084
PB.B084 spectrogram
PB.B Hz band-pass filtered
Two tremor bursts
Peaked at 10 Hz

4. Spectra of tremor burst in the S wave (t~1650s)
Peak at 3-4 Hz in horizontal components
Peak at ~10 Hz in vertical component