May 06 , 2018.
Pu’u ‘Ō’ō / Kilauea , Hawai :
19°25’16 » N 155°17’13 » W,
Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE
Lower East Rift Zone Eruption:
The intermittent eruption of lava in the Leilani Estates subdivision in the lower East Rift Zone of Kīlauea Volcano continues. Fissure 7 stopped erupting in mid-afternoon. A new fissure erupted this evening near fissures 2 and 7, and lava fountains reached as high as about 70 m (230 ft). Early this morning, new ground cracks were reported on Highway 130, but no heat or escaping steam was subsequently observed.
Seismicity and deformation are consistent with continued accumulation of magma within the rift zone.
HVO geologists will be in the area overnight to track and report to Hawaii County Civil Defense on the activity, and other scientists are closely tracking the volcano’s overall activity using various monitoring data streams.
Kīlauea Volcano Summit:
Tiltmeters at the summit of Kīlauea Volcano continue to record the deflationary trend of the past several days. Satellite InSAR data show that between April 23 and May 5, 2018, the summit caldera floor subsided about 10 cm (4 in). Corresponding to this deflationary trend, the summit lava lake level in Overlook crater has dropped about 128 m (518 ft) below the crater rim since April 30. Rockfalls from the crater walls into the retreating lake produced ashy plumes above Halemaumau crater today, resulting in light ashfall in the summit area. Rockfalls and ashy plumes are expected to continue as the lake level drops.
Earthquake activity in the summit increased in the past 2 days, coincident with the magnitude-6.9 earthquake on May 4 beneath the south flank of Kīlauea. In the past two days, about 152 magnitude-2 and magnitude-3 earthquakes occurred at depths less than 5 km (3 miles) beneath the summit area. Twenty two magnitude 3 earthquakes were recorded. These earthquakes are related to the ongoing subsidence of the summit area and beneath the south flank of the volcano.
Source : HVO
Photos et vidéo : Epic lava
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