What is a super heated water jet from the ground jet called?

A superheated water jet from the ground is commonly referred to as a "geothermal steam jet" or "geothermal geyser." These jets occur when groundwater is heated by geothermal activity, causing it to erupt as steam or hot water. The pressure buildup from the superheated water can lead to explosive releases, creating natural geysers in some geothermal areas.