NASA: It is happening now - Está sucediendo ahora - 08-6-10 - Plume from Mount Pagan (Mariana Island) - Vog from Yasur Volcano (Vanuatu - Tanna Island)
Posted by Ricardo Marcenaro | Posted in NASA: It is happening now - Está sucediendo ahora - 08-6-10 - Plume from Mount Pagan (Mariana Island) - Vog from Yasur Volcano (Vanuatu - Tanna Island) | Posted on 18:02
Plume from Mount Pagan
Mount Pagan, a volcano in the Northern Marianas Islands, was been intermittently active during 2009 and 2010. This false-color satellite image shows a minor gas and steam plume rising from the volcano on June 3, 2010. The blue tint of the volcanic plume hints that it may be rich in sulfate aerosols, which could be acting as nuclei for the condensation of water droplets, resulting in cloud formation in the plume.
The image was acquired by the Advanced Spaceborne Emission and Reflection Radiometer aboard NASA’s Terra satellite. The plume is light blue while clouds are white. Vegetation on the island, colored bright red, stands out in contrast to dark lava flows. The central flows were erupted in 1981, while the smaller flows on the northeastern coastline date to Pagan’s 1872–73 eruption. Water is purple-gray.
1.
References
2. Global Volcanism Program. (2010). Pagan. Accessed June 4, 2010.
3. Trusdell, F. A., Moore, R. B., & Sako, M. K. (2006). Preliminary Geologic Map of Mount Pagan Volcano, Pagan Island, Commonwealth of the Northern Mariana Islands. Accessed June 4, 2010.
4. USGS/Commonwealth of the Northern Mariana Islands. (2010, June 4). Northern Mariana Islands Weekly Update. Accessed June 4, 2010.
NASA Earth Observatory image by Jesse Allen and Robert Simmon, using data from the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. Caption by Robert Simmon.
Instrument:
Terra - ASTER
The image was acquired by the Advanced Spaceborne Emission and Reflection Radiometer aboard NASA’s Terra satellite. The plume is light blue while clouds are white. Vegetation on the island, colored bright red, stands out in contrast to dark lava flows. The central flows were erupted in 1981, while the smaller flows on the northeastern coastline date to Pagan’s 1872–73 eruption. Water is purple-gray.
1.
References
2. Global Volcanism Program. (2010). Pagan. Accessed June 4, 2010.
3. Trusdell, F. A., Moore, R. B., & Sako, M. K. (2006). Preliminary Geologic Map of Mount Pagan Volcano, Pagan Island, Commonwealth of the Northern Mariana Islands. Accessed June 4, 2010.
4. USGS/Commonwealth of the Northern Mariana Islands. (2010, June 4). Northern Mariana Islands Weekly Update. Accessed June 4, 2010.
NASA Earth Observatory image by Jesse Allen and Robert Simmon, using data from the NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team. Caption by Robert Simmon.
Instrument:
Terra - ASTER
Vog from Yasur Volcano
Vog sprawled across the Pacific Ocean in early June 2010, in the wake of eruptive activity from Yasur Volcano on Vanuatu’s Tanna Island. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image on June 6, 2010. A large swath of faint blue-gray haze extends from Tanna toward the southeast, spreading out as it travels farther from the volcano.
Authorities restricted tourist visits to Yasur Volcano at the end of May 2010, and on June 5 (the day before MODIS acquired this image), the volcano experienced an explosive eruption, releasing lava bombs and volcanic ash. The event did not affect flights in Vanuatu, but did affect domestic flights in nearby New Caledonia, according to VolcanoLive.com.
Ever since Caption Cook observed ash eruptions in 1774, Yasur Volcano has been continually active. This stratovolcano is one of Vanuatu’s best-known and most-visited volcanoes.
1.
References
2. Seach, J. (2010, June 5). Volcano News. Accessed June 7, 2010.
3. Global Volcanism Program. Yasur. Smithsonian Institution. Accessed June 7, 2010.
NASA image by Jeff Schmaltz, MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott.
Instrument:
Aqua - MODIS
Authorities restricted tourist visits to Yasur Volcano at the end of May 2010, and on June 5 (the day before MODIS acquired this image), the volcano experienced an explosive eruption, releasing lava bombs and volcanic ash. The event did not affect flights in Vanuatu, but did affect domestic flights in nearby New Caledonia, according to VolcanoLive.com.
Ever since Caption Cook observed ash eruptions in 1774, Yasur Volcano has been continually active. This stratovolcano is one of Vanuatu’s best-known and most-visited volcanoes.
1.
References
2. Seach, J. (2010, June 5). Volcano News. Accessed June 7, 2010.
3. Global Volcanism Program. Yasur. Smithsonian Institution. Accessed June 7, 2010.
NASA image by Jeff Schmaltz, MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott.
Instrument:
Aqua - MODIS
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