Videos

Title: A Sight "Fearfully Grand" Eruptions of Lassen Peak, California, 1914 to1917

• A summary of the eruptions and their effects
• Illustrated with historical photographs

Volcano gas geochemistry has been around for a long time. Scientists can make gas measurements using very large, very expensive Correlation Spectrometers or collect samples in the field and bring them back for analysis in the lab. But it’s possible we’re missing out on a lot of information because our monitoring capabilities don’t include continuous observation.

This Quicktime movie provides a brief aerial overview of the active flow front.

This Quicktime movie provides a brief aerial overview of the active flow front.

An aerial overview of the position of the flow front

This Quicktime movie, taken at 11:30am, gives an aerial overview of the flow front and its position relative to Pāhoa. The movie is fairly large in size and may take several minutes to download.

This Quicktime movie shows a close-up view of the flow front, and its proximity to Cemetery Rd./AP‘A‘ā St. The transfer station is also shown.

This Quicktime movie shows a wider view of the flow front, and pans to the right to show the flow's proximity to Pāhoa.

This Quicktime movie provides an aerial overview of the flow front.

This Quicktime movie was captured at the flow front, and shows a small channelized portion of the pāhoehoe flow pouring over the dirt road embankment. Gas trapped within the flow is released via occasional small bubble bursts.

This Quicktime movie shows the small explosion of spatter that occurred at Halema‘uma‘u on Sunday, October 19. Spatter landed around the Halema‘uma‘u Overlook (closed to the public).

This Quicktime movie provides a brief aerial overview of activity at the flow front.

This Quicktime movie provides a brief aerial overview of activity at the flow front.

This Quicktime movie provides a brief aerial overview of the flow front, showing its proximity to the the transfer station on Apa‘a St., and ends by panning over to show Pāhoa.

This Quicktime movie provides a quick aerial overview of activity at the flow front. At the end of the movie there is a view of the lava stream in one of the skylights on the lava tube supplying lava to the flow front.

This Quicktime movie gives a brief aerial overview of activity at the flow front.

This Quicktime movie gives a quick aerial overview of activity at the front of the June 27th lava flow. The flow remains active, with slow-moving breakouts about 2.5 km (1.6 miles) upslope of Apa‘a St. and 3.5 km (2.2 miles) from Pāhoa Village Road.

This Quicktime movie shows an HVO geologist sampling lava on the June 27th lava flow using a rock hammer. The lava is placed into a bucket of water to quench the sample. Lava samples like this are routinely collected for chemical analysis, which provides insight into the magmatic system feeding the eruption.

This Quicktime movie gives a quick aerial overview of the activity at the front of the June 27th lava flow. Kaohe Homesteads is in the lower left.

This Quicktime movie provides a brief aerial overview of activity at the flow front. Kaohe Homesteads is in the lower left.

This Quicktime movie provides an aerial view of activity near the front of the June 27th flow, where numerous pāhoehoe lobes are slowly burning vegetation.