It is time to take a look at the surfacing of the devil as the magma continues to erupt from one of the lava tubes of the mountain. The devil has not been spotted yet, but, at one point it was thought it could be an occurrence until a pick up truck was spotted melting in the lava (see video below).
September 30, 2018
The USGS Hawaiian Volcano Observatory uses a diverse set of instruments to monitor active volcanoes in Hawaii. These include seismometers, gas sensors, Global Positioning System stations and webcams. Each provides a unique type of data critical to understanding volcanic systems.
However, electronic tiltmeters are the instruments that often are the first to alert us to changes in a volcano that could lead to an eruption. This is because they are exceptionally sensitive, capable of measuring very small ground deformations that suggest the movement of magma into shallow parts of volcanoes.
While tiltmeters respond to many subsurface processes, they are particularly effective for tracking inflation and deflation of subsurface magma reservoirs, such as the shallow Halema‘uma‘u source at Kilauea’s summit. As magma moves into a subsurface reservoir, the reservoir expands to accommodate additional magma. This causes the ground above the reservoir to bulge, depending on how shallow it is.
As it bulges upward, the slope of the ground surface changes in certain places and in a specific pattern. This change in slope is what a tiltmeter measures, much like a carpenter’s level....
...Volcano activity updates
At Kilauea’s lower East Rift Zone, the most recent significant incandescence visible within the fissure 8 cone was on Sept 15. At the summit of the volcano, seismicity and ground deformation remain low. Hazardous conditions still exist in the lower East Rift Zone and at the summit. Residents should stay informed and heed county Civil Defense closures, warnings and messages (http://www.hawaiicounty.gov/active-alerts).
No collapses at Pu‘u ‘O‘o have been observed during the past two weeks.
The combined sulfur dioxide emission rates at Kilauea’s summit, Pu‘u ‘O‘o and in the lower East Rift Zone remain at less than 1,000 tonnes per day — lower than at any time since late 2007.
The USGS Volcano Alert level for Mauna Loa remains at Normal (https://volcanoes.usgs.gov/vhp/about_alerts.html).
HVO continues to closely monitor Kilauea and Mauna Loa and will report any significant changes on either volcano. Daily Kilauea updates are posted at https://volcanoes.usgs.gov/volcanoes/kilauea/status.html. Monthly Mauna Loa updates are posted at
https://volcanoes.usgs.gov/volcanoes/mauna_loa/status.html.
Two earthquakes with three or more felt reports occurred in the Hawaiian Islands this past week: a magnitude-3.2 quake 15 km (9 mi) north-northwest of Waikoloa Village at 32 km (20 mi) depth at 5:42 p.m. Sept. 26 and a magnitude-3.7 quake 18 km (11 mi) southeast of Volcano at 6 km (4 mi) depth at 1:56 a.m. Sept. 21. Small aftershocks from the May 4 magnitude-6.9 earthquake are still being generated on faults located on Kilauea’s south flank....
