Spectrogram

Volcanic: Mount St. Helens 10/21/2014(UTC)

00:00
Helens_20141021-0010_thumb
Helens_20141021-0020_thumb
Helens_20141021-0030_thumb
Helens_20141021-0040_thumb
Helens_20141021-0050_thumb
Helens_20141021-0100_thumb
01:00