Approximately 50% of Hawaiian eruptions have no pyroclastic activity associated with them at all. Instead, lava is quietly erupted onto the surface.
This lava flows away in all directions forming a miniature shield volcano. These vents are called "satellitic" or "parasitic" shields, and produce tube-fed flows. Satellitic shields have diameters of 1-2 km, and can be ~100 m high with slopes of only a few degrees.
While a satellitic shield eruption is going on, a lava pond usually exists at the summit of the shield. Overflows from the pond build the shield.
There have been 4 major satellitic shields formed on since the arrival of Westerners (Mauna Iki 1919-1920, Mauna Ulu 1969-1974, Kupa'ianaha 1986-1992, and the presently-active vent 1992-who knows?). Including these, 16 satellitic shields have been mapped on Kilauea (Holcomb 1987).