You might imagine an eruption to be like a lava fountain
coming out of the central vent of a volcano.
Kilauea on the Hawaiian Islands is the most active of the five volcanoes that form the Hawaiian Islands, and has been continually erupting for more than 30 years, spewing a large lava fountain
and releasing gas and dust.
Just 50 years ago, a lava fountain
spewed 1,900 feet into the air from that very spot.
FIGURE 1 A Hawaiian-style lava fountain
feeding a lava flow and building a cinder cone (Pu'u 'O'o on the flank of Kilauea volcano in Hawai'i).
In unprecedented measurements, volcanologists have pinpointed the source of volcanic gases driving a huge lava fountain
from deep in Italy's Mount Etna.
Keck's enhanced vision has already inspected a range of celestial sights--storms on Neptune, a lava fountain
on Jupiter's moon Io, brown dwarfs in the Milky Way, and black holes in galaxies far beyond.
The lava fountain
reached around 200 meters high and the ash column reached 1.5 kilometers high.
22, the Phivolcs recorded a five-kilometer high ash plume and a 700-meter high lava fountain
episode that forced the agency to immediately raise to alert level of Mayon to four.
Mount Mayon had its fourth lava fountain
eruption on Sunday afternoon, the Philippine Institute of Seismology and Volcanology (Phivolcs) said.
One event produced a 500-meter-high ash plume and a low and weak lava fountain
that lasted 37 seconds.
of Sunday, the National Disaster Risk Reduction and Management Council recorded that about P181,382,970 worth of rice, P7,573,696 corn crops and P478,000 worth of abaca were damaged due to the lava fountain
episodes of Mayon, Radyo Inquirer 990 AM reported.
Lawrence Banes, Phivolcs science research assistant, said the agency was not able to determine the height of the ash plume and lava fountain
on the three episodes due to inclement weather in Albay province.