It is likely that previous volcanic eruptions, which have been occurring sporadically since at least 1939, could be providing nutrients that support a thriving marine ecosystem around the volcano. The Landsat 9 satellite captured a stunning shot of an underwater eruption plume from the Kavachi volcano in the southwest Pacific Ocean, whose summit lies approximately 65 feet (20 m) below sea level.ĭuring a 2015 expedition to Kavachi, researchers discovered that the volcano's crater is home to two types of sharks - hammerheads ( Sphyrna sp.) and silky sharks ( Carcharhinus falciformis) - despite the locale's explosive history. (Image credit: NASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. Plumes from underwater volcanic activity from the Kavachi volcano.
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