Is there a summit (volcano) called "Fagradalsfjall"? This name is often referred to in the press in connection with the volcano eruption in march 2021.

Where is the altitude "98" from? I have the impression that it should be much higher (about 200m). On https://kortasja.lmi.is/mapview/ (basemap --> Atlas), Núpshlíðarháls seems to be a long ridge, ascending from Núpshlíð in the south almost to Selsvallafjall in the north.