Mount Pinatubo Monitoring Equipment Installation
![Mt. Pinatubo Monitoring Equipment Installation](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/installation.jpg?itok=owyTdyAh)
Detailed Description
Staff from VDAP and the Philippine Institute of Volcanology and Seismology install electronic tiltmeters to monitor inflation of the ground at Mt. Pinatubo in the Phillipines in June 1991. Photograph credit: USGS/VDAP