Discoloration at the water's surface suggests to scientists that the underwater volcano could have been erupting since mid-October.
The trench is 36,069.6 feet below the ocean's surface, and is deeper than Mount Everest is tall . The crescent-shaped ditch in the Earth's crust is also 1,554 miles long, and 43 miles wide.
Trenches like this are formed when two tectonic plates collide. In the case of the Mariana Trench, the Pacific plate collided with the much smaller Philippine plate.could have started erupting from mid-October, but again, the remoteness of the area has made it difficult to confirm, the USGS said in a statement. There are no monitoring stations near the seamount, meaning scientists are limited in their ability to assess the volcanic activity.
Researchers are not sure whether they will be able to get close enough to the seamount to see what is going on but they are continuing to monitor satellite imagery closely. "Nothing is certain yet, but I have been included on some emails where scientists from NOAA were discussing going to Ahyi by ship to make observations, such as bathymetry [sea or lake depth] measurements," Haney said.
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