images

Volcano Pinacate, Mexico Dec 5 2002

by

Nasa/USGS/Novapix

Reference

t-namex-00004

Date

2006-09-08

The pockmarked terrain of Pinacate National Park in Mexico's Sonora Province is evidence of a violent past. Among hundreds of volcanic vents and cinder cones are rare maar craters, formed when rising magma met underground water to create pockets of steam that blew nearly circular holes in the overlying crust. Landsat-7 satellite image.