An effusive eruption of basalt lava from Pu`u `O`o spatter and cinder cone at Kilauea Volcano, Hawai`i. Lava spilling from the cone has formed a series of `a`a lava channels and flows.
J. D. Griggs
1984-01-31
United States Department of the Interior, United States Geological Survey, <a rel="nofollow" class="external free" href="https://volcanoes.usgs.gov/images/pglossary/effusive.php">http://volcanoes.usgs.gov/images/pglossary/effusive.php</a>