They are very common on fast-spreading mid-ocean ridges such as the East PacificRise. Sheet flows form at much higher eruption rates than pillow flows. The high eruptionrates allow rivers of lavas to form that can flow across the seafloor.
What country produces the most lava?
Indonesia has more volcanoes than any other country in the world. The 1815 eruption of its Mount Tambora still holds the record for the largest in recent history.
Which are most commonly associated with lava flows?
Which are most commonly associated with lava flows? Pahoehoe and aa types of relatively slow and fluid flows that last for extended periods.
Which country has no volcano?
Australia Catalog Page for PIA06664. Australia is the only continent without any current volcanic activity, but it hosts one of the worlds largest extinct volcanoes, the Tweed Volcano.
How far can lava flows go?
Fluid basalt flows can extend tens of kilometers from an erupting vent. The leading edges of basalt flows can travel as fast as 10 km/h (6 mph) on steep slopes but they typically advance less than 1 km/h (0.27 m/s or about 1 ft/s) on gentle slopes.
What is the largest volcano in the world?
Mauna Loa Mauna Loa on the Island Hawaiʻi is the worlds largest volcano. People residing on its flanks face many hazards that come with living on or near an active volcano, including lava flows, explosive eruptions, volcanic smog, damaging earthquakes, and local tsunami (giant seawaves).
What is the most feared volcano?
Which is the most dangerous volcano in the world? The quick answer: Vesuvius volcano in the Gulf of Naples, Italy.