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Data acquired September 24, 2004 2758 x 4803 937 KB - JPEG
Data acquired September 24, 2004 2758 x 4803 2 MB - JPEG
Data acquired September 24, 2004 5 KB - KML/KMZ
Data acquired September 24, 2004 JPEG
Data acquired September 24, 2004 540 x 700 JPEG
342 x 228 JPEG
After more than a decade of inactivity, Mount St. Helens rumbled back to life in September 2004. An ongoing series of tremors within the volcano coupled with upward movement of magma toward its caldera prompted geologists to issue a Level 3 alert on October 2, stating that Mount St. Helens could experience a moderately severe eruption at any time. In order to help geologists and volcanologists assess the nature and magnitude of the risk, on September 24, 2004, NASA flew a low-altitude aircraft carrying the MODIS/ASTER Airborne Simulator (MASTER) directly over the volcano to obtain high-resolution images of its caldera.
NASA images courtesy Jeff Myers and Rose Dominguez, MASTER Project, Ames Research Center and the Jet Propulsion Laboratory
Published October 7, 2004 Data acquired September 24, 2004