Watch spewing volcanoes, descending lava, and a truck try to escape a lava trap. Several types of volcanic eruptions —during which lava, tephra and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by Eruption mechanisms · Magmatic eruptions · Plinian · Phreatomagmatic eruptions. Several types of volcanic eruptions—during which lava, tephra and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by. One of Central America's most active volcanoes, Fuego in Guatemala is in near-permanent explosive eruption with intermittent phases of increasing activity that generate lava fountains, lava flows and pyroclastic flows. Coppermine River Area, Nunavut PDF. Outbreak Epidemic Pandemic Famine. Surtsey , erupting 13 days after breaching the water. If eruptive rates are high enough, they may even form splatter-fed lava flows.