What Are Phreatomagmatic Eruptions and How They Form?
Phreatomagmatic eruptions occur when rising magma interacts with external surface water such as a shallow lake, sea, or groundwater. Some authors call them hydromagmatic eruptions.
Volcanic eruptions
What Are Phreatic Eruptions and How They Form
Phreatic eruptions occur when magma, lava, hot rock, or volcanic deposits suddenly heat or boil surface or groundwater to steam, causing an explosion of steam,