MSGID: 1:317/3 633f17cc   
   PID: hpt/lnx 1.9.0-cur 2019-01-08   
   TID: hpt/lnx 1.9.0-cur 2019-01-08   
   October 6, 2022 - Smoke and Ash from Nishino-shima Volcanic Island   
      
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      A long ash-laden plume and a large red hot spot marked the explosive   
      eruption of Japan’s Nishino-shima volcano in early October 2022. The   
      Moderate Resolution Imaging Spectroradiometer (MODIS) on board NASA’s   
      Aqua satellite acquired a true-color image of the scene on October 4.   
      The red hot spot marks an area where the thermal bands on the   
      instrument detected high temperatures. In this case, this is likely due   
      to a large flow of lava from the volcano.   
      
      This eruption of Nishino-shima began on October 1 and has continued   
      through October 5. According to the Smithsonian Institution Global   
      Volcanism Program, an eruption produced an ash plume which rose 1.8-2.6   
      km (6,000-8,500 feet) above sea level and drifted both to the east and   
      to the west. Dense ash eruptions have caused aviation warnings near the   
      area, but the island is uninhabited so other risks to people remain   
      small.   
      
      Nishino-shima volcano appears to occupy a tiny island, but it really is   
      the tip of a large submerged volcano. Measuring only about one-half   
      mile (700 meters) wide, on maps the island appears as a tiny dot about   
      1,000 km (620 miles) south and slightly east of Tokyo in the Ogasawara   
      Islands. The volcano’s eruptions typically produce large amounts of ash   
      as well as large flows of lava. In fact, the repeated, underwater   
      eruptions with free-flowing lava have created the island—and are   
      expanding its size. Scientists have estimated that in the last large   
      eruptive episode, which occurred in 2020, Nishino-shima produced lava   
      flows of 1,000,000 cubic meters (35,314,667 cubic feet) a day.   
      
      Image Facts   
      Satellite:  Aqua   
      Date Acquired: 10/4/2022   
      Resolutions:  1km (797.3 KB),  500m (2.6 MB),   
      Bands Used: 1,4,3   
      Image Credit: MODIS Land Rapid Response Team, NASA GSFC   
      
      
      
   https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2022-10-06   
       
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