Sl. No

Potential Sources of Environmental Infrasound

Likely Frequency

(from multiple literature sources)

(Hz)

1

Tectonic plate movements at Latitude 34˚N in North Western Himalaya Mountains and teleseismic activity from global seismic events and due to local/regional seismic activity

Not known

TO BE INVESTIGATED

2

Mountain Air Turbulence

0.01 - 1.0

3

Earthquakes > Mag. 2 within and in the neighborhood of the Kashmir Valley

0.01 - 14

4

Earth Tremors

TO BE INVESTIGATED

5

Landslides

0.05 - 5.0

6

Rock Fractures

0.02 - 5.0

7

Acoustics of the Kashmir Valley: The Valley can be visualized as a U-Shaped resonant cavity (theoretical value of resonant frequency < 0.2 Hz i.e. in the infrasound spectrum) which could be sustained by mountain clear air turbulence reverberating all the year around in the Valley)