Thomagata Patera

It is located on Io's anti-Jupiter hemisphere at 25°40′N 165°56′W / 25.67°N 165.94°W / 25.67; -165.94[1], to the east of the nearby active volcanoes Volund and Zamama.

If the floor of the patera is at the same level as the surrounding plains, the western slope of the mesa would have a grade of 2°.

[2] The morphology of this mesa and the pattern of faded lava flows along its slopes radiating away from Thomagata (at least on its eastern side) suggest that Thomagata Patera and the mesa that surrounds it may be a shield volcano, also called a tholus on Io.

[3] The irregular margin of the mesa and the lack of debris at the base of its basal scarp suggest that it was modified by sulfur dioxide sapping.

[1] According to the IAU, the mythical Thomagata was "a terrifying fire spirit who flew through the air changing men into animals.