ASH FROM KILAUEA VOLCANO ERUPTION HAWAII SEEN BY THE NASA TERRA SATELLITE
Ash from Kilauea Eruption Viewed by NASA's MISR
On May 3, 2018, a new eruption began at a fissure of the Kilauea volcano on the Island of Hawaii. Kilauea is the most active volcano in the world, having erupted almost continuously since 1983. Advancing lava and dangerous sulfur dioxide gas have forced thousands of residents in the neighborhood of Leilani Estates to evacuate. A number of homes have been destroyed, and no one can say how soon the eruption will abate and evacuees can return home.
On May 6, 2018, at approximately 11 a.m. local time, the Multi-angle Imaging SpectroRadiometer (MISR) instrument on NASA's Terra satellite captured this view of the island as it passed overhead. Much of the island was shrouded by clouds, including the fissure on its eastern point. However, an eruption plume is visible streaming southwest over the ocean. The MISR instrument is unique in that it has nine cameras that view Earth at different angles: one pointing downward, four at various angles in the forward direction, and four in the backward direction. This image shows the view from one of MISR's forward-pointing cameras (60 degrees), which shows the plume more distinctly than the near-vertical views.
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The eruption of Kilauea Volcano on the island of Hawaii triggered a number of gas- and lava-oozing fissures in the East Riff Zone of the volcano. The fissures and high levels of sulfur dioxide gas prompted evacuations in the area.
Images taken from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) onboard NASA’s Terra satellite picked up these new fissures. In the first image, the red areas are vegetation, and the black and gray areas are old lava flows. The yellow areas superimposed over the image show hot spots that were detected by ASTER’s thermal infrared bands. These hot spots are the newly formed fissures and new lava flow as of May 6. In the second photo, also acquired on May 6, the long yellow and green streaks are plumes of sulfur dioxide gas.
On April 30, the floor of Kilauea’s crater began to collapse. Earthquakes followed, including one that measured magnitude 6.9, and lava was pushed into new underground areas that eventually broke through the ground in such areas as the Leilani Estates.
Kilauea is the youngest and southeastern-most volcano on the island. Eruptive activity along the East Rift Zone has been continuous since 1983. Kilauea is one of the world’s most active volcanoes
ASTER image acquired May 6 picks up hotspots on the thermal infrared bands – shown in yellow. These hotspots are newly formed fissures and lava flows. Credits: NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team