Volcanoes

Overview

Volcanic ash can damage aircraft and disrupt air traffic. Agencies around the world track volcanic clouds and issue alerts to the aviation community. Now data from NASA earth-observing satellites is improving the ability to detect and forecast the hazard to aviation from volcanic clouds.

 

Latest Updates

February 3, 2018
Mt. Fuego eruption
  It is one of Central America’s most active volcanos. Volcán de Fuego puffs continuously without notice by nearby communities, punctuated by episodes with explosive activity, huge ash plumes, and lava flows. The Guatemalan volcano is at it again, beginning its latest bout of unruly behavior on January 31, 2018. On the next day, the Operational Land Imager (...
November 30, 2017
MODIS True Color Terra Image
Imagery Acquired November 27, 2017 This RGB image from MODIS/Terra on November, 27th shows the presence of ash vented out from the Agung volcano as gray and brownish areas above clouds and/or water. This contrasts with the whiter clouds on the left side of the image.
November 30, 2017
SO2 emission map
Acquried November 29, 2017 Figure 1 shows volcanic sulfur dioxide (VSO2) plume emitted from the eruption of Mt. Agung (Bali, Indonesia) and first captured by Aura/OMI and SNPP/OMPS UV spectrometers afternoon overpasses on November 26 2017, just hours after the beginning of the explosive magmatic phase of the eruption. The data show total SO2 column amounts in Dobson Units (1 DU = 2.69 1016 molecules SO2 per cm2). Background SO2 concentrations in this location are...
January 3, 2017
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this image on January 3, 2017.
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this image on January 3, 2017. It was loud and brief. For a few minutes around 9 p.m. on January 3, 2017, Alaska’s Bogoslof volcano let loose an explosion. According to the Alaska Volcano Observatory, cloud-top temperatures indicate the volcanic plume may have reached as...

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