- Current Update, last updated Oct 23, 2014 10:02 :
Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone, and gas emissions remained elevated. There was no significant change in ground tilt at the summit, and there was no no net change in lava lake level. At the East Rift Zone, a narrow finger of lava less than 50 m (55 yd) wide overtook the flow front in the past few days, moving 370 m (405 yd) from Monday to Wednesday afternoon. This morning, Civil Defense reports that the new leading edge has advanced about 425 yds since yesterday morning and is now approximately 0.3 miles to the closest point on Apa`a St.
June 27th Lava Flow Observations: HVO scientists mapped the distal portion of the June 27th flow Wednesday afternoon via helicopter. The rate of advance of the narrow lobe that is now the leading edge of the flow has been highly variable, from an average rate of about 80 m/day (87 yd/day) during the previous week to rates as high as 300 m/day (330 yd/day) at times from Monday to Wednesday. The former flow front just upslope of the new flow had also advanced at a rate of about 40 m/day (44 yd) during the previous 2 days. The flow is continuing to follow the steepest-descent path toward Pāhoa as shown on lava flow maps. From their overflight this morning, Civil Defense reports that the new flow front advanced 425 yds since yesterday morning.
Puʻu ʻŌʻō Observations: There was no significant change in ground tilt and seismic tremor during the past day. Glow was visible overnight above several out gassing openings in the crater floor, but there were no significant changes in activity within the crater. The most recent sulfur-dioxide emission-rate measurement for the East Rift Zone was 450 tonnes per day (from all sources) on October 9, 2014.
Summit Observations: There was no significant change in ground tilt over the past day. The lava lake level fluctuated slightly, as usual, but stayed around 60 meters below the rim of the Overlook crater (the floor of Halemaʻumaʻu).
Seismic tremor beneath the summit remained low and varied with changes in spattering on the surface of the lava lake. GPS receivers in the summit area have recorded slight contraction across the caldera since early July, but no significant change in elevation during that time. The most recent sulfur-dioxide emission rate measurements for the summit were 2,700–3,600 tonnes/day (see caveat below) for the week ending October 21, 2014. A small amount of particulate material was carried aloft by the plume.
- Volcanic History Overview: Kilauea volcano is one of the most active and best studied volcanoes in the world and is renowned for the accessability of her eruptions. Throughout her history, Kilauea has erupted from three main areas, its summit and two rift zones. Kilauea currently has a summit caldera, but it may not always have been evident. Most eruptions are relatively gentle, sending lava flows downslope from fountains a few meters to a few hundred meters high. Over and over again these eruptions occur, gradually building up the volcano and giving it a gentle, shield-like form. Every few decades to centuries, however, powerful explosions spread ejecta across the landscape. Such explosions can be lethal, as the one in 1790 that killed scores of people in a war party near the summit of Kilauea. Such explosions can take place from either the summit or the upper rift zones. Kilauea has erupted more than 60 times in the past 150 years. The current eruption began in 1983.
- Location: Hawaii and Pacific Ocean, HI
Elevation: 1247 m
Recent Eruption: Ongoing
- Hazard Assessments: Kauahikaua. Jim, 2007, Lava Flow Hazard Assessment, as of August 2007, for Kīlauea East Rift Zone Eruptions, Hawai`i Island, Open-File Report 2007-1264.
- Link to monitoring data: Recent Earthquakes in Hawaii Page
Volcanic Alert Level: WARNING Aviation Color Code: ORANGE