Strombolian Eruption
These type of eruptions are named after the Stromboli volcano in Sicily. One similarity between the Hawaiinan and Strombolian is that they both don't produce alot of ash clouds. Strombolian eruptions are distinct bursts of fluid lava from the mouth of a magma-filled summit conduit. The explosions usually occur every few minutes at regular or irregular intervals for a short duration. The explosions of lava can reach up to hundreds of meters.
This kind of eruption can create a variety of forms of eruptive products: spatter, or hardened globs of glassy lava; scoria, which are hardened chunks of bubbly lava; lava bombs, or chunks of lava a few cm to a few m in size; ash; and small lava flows which flow down the volcano slopes. Products of an explosive eruption are often collectively called tephra. Strombolian eruptions are often associated with small lava lakes, which can build up in the conduits of volcanoes. They are one of the least violent of the explosive eruptions, although they can still be very dangerous if lava flows reach inhabited areas. Strombolian eruptions are named for the volcano that makes up the Italian island of Stromboli, which has several erupting summit vents. These eruptions are particularly spectacular at night, when the lava glows brightly as shown in the picture on the right. |