Scientists maintain an Acoustic Flow Monitor (AMF) at Mount St. Hel...

(Credit: Spicer, Kurt. Public domain.)

Detailed Description

Scientists maintain an Acoustic Flow Monitor (AMF) at Mount St. Helens, Washington. It detects ground movement associated with lahars.

Image Dimensions: 4128 x 2784

Date Taken: Friday, July 15, 2005

Location Taken: US