HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE U.S. Geological Survey Monday, January 5, 2015 8:54 AM HST Activity Summary: #Kīlauea #Volcano continues to erupt at its summit and within its East Rift Zone. In the East Rift Zone, the June 27th lava flow front remained stalled, however, active surface breakouts up slope of the flow front continue. According to Civil Defense, two breakouts along the north margin of the flow approximately 1.5 – 2.5 km (1.0-1.5 miles) up slope of the flow front are showing signs of increased activity and advancement. There has been no significant change in ground tilt over the past day at the summit or at Puʻu ʻŌʻō. June 27th Lava Flow Observations: #HVO webcam images show that active surface breakouts up slope of the flow front continue. This morning, Civil Defense reported that the flow front was still stalled approximately 800 m (0.5 miles or 880 yards) from the intersection of Highway 130 and #Pāhoa Village Road, and about 530 m (580 yards or 0.3 miles) up slope of the Pāhoa Marketplace. Two breakouts along the north margin of the flow approximately 1.5 – 2.5 km (1.0 – 1.5 miles) up slope of the flow front are showing signs of increased activity and advancement. The next HVO over flight is scheduled for this week, weather permitting. Puʻu ʻŌʻō Observations: Very weak inflationary ground tilt was recorded at Puʻu ʻŌʻō yesterday afternoon through early this morning. All other monitoring data indicated no significant changes at Puʻu ʻŌʻō. The most recent measurement of sulfur dioxide emissions from all East Rift Zone vents was about 250 tonnes per day on December 19, 2014. Summit Observations: There has been no significant change in ground tilt at the summit since December 30, 2014. A typical number of small shallow earthquakes occurred in the summit area. The summit #lava lake has shown the usual fluctuations associated with changes in spattering behavior, which are also manifested as variations in tremor amplitudes and gas release. Small amounts of particulate material were carried aloft by the plume. The average emission rate of sulfur dioxide was around 6,000 tonnes/day for the week ending on December 31.
Posted on: Mon, 05 Jan 2015 19:15:42 +0000
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