Kilauea , Hawai : The summit lava lake remains relatively high,

Kilauea , Hawai :  The summit lava lake remains relatively high,

Activity Summary:
Eruptions continue at Kilauea Volcano’s summit and East Rift Zone. The summit lava lake remains relatively high, its level fluctuating slightly with changes in summit tilt and spattering. Lava continues to advance southeast from Pu’u’O’o and currently poses no threat to nearby communities. The flow was 3.3 km (2.1 mi) long on June 10. The June 27th lava flow northeast of Pu’u’O’o is no longer active.

Summit Observations:
The inflationary phase of the latest DI event continues this morning, having started very early on June 10. The broader deformation trend recorded by summit tiltmeters since late May has been one of gradual inflationary tilt. The summit lava lake is roughly 30 m (~100 ft) below the adjacent floor of Halema’uma’u, based on estimates from webcam images. Rates of seismicity across the volcano are at background levels, with episodes of summit tremor associated with spattering within the summit lava lake. Sulfur dioxide emissions from the summit vent over the past week ranged from 4,200 to 5,400 metric tons/day during good trade wind conditions. Data from GPS networks and InSAR (satellite radar) show continued long-term inflation of the summit and upper Southwest Rift Zone magma reservoirs.

Pu’u’O’o Observations:
The gradual deflationary tilt recorded by the tiltmeter at Pu’u’O’o is no longer discernible – the daily tilt variations caused by volcanic and environmental factors obscure the broader trend. No crater floor subsidence since yesterday can be identified in webcam images. If subsidence is still occurring, then it is happening at a rate too slow to be perceptible over the duration of a single day. Vents on Pu’u’O’o’s crater floor and upper northeast flank remain incandescence, and bright glow overnight from the pit just west of the crater (West pit) indicates that it still contains a small lava pond. Seismicity is at background levels, and the sulfur dioxide emission rate from all East Rift Zone vents was about 290 metric tons/day when last measured on June 9.

Lava Flow Observations:
Webcam views show that the lava flow from the vent on the east flank of Pu’u’O’o remains active and continues to advance southeast. Bright incandescence was visible to the webcams overnight from several skylights along the upper part of the flow’s nascent lava tube. The lava flow was 3.3 km (2.1 mi) long when mapped on June 10, and at that time was advancing at an average rate of about 250 m/day (~275 yd/day). The June 27th flow is no longer active.

 

Contactez-nous pour organiser votre voyage sur les volcans.

Inscrivez vous sur notre mailling list pour connaitre nos prochains départs “Spécial Eruption Express”

 

 

June 14 , 2016. Kilauea , Hawai :

19°25’16” N 155°17’13” W,
Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

 

Source : HVO

Photos : HVO , Bruce Omori.

Share "Kilauea , Hawai : The summit lava lake remains relatively high," via: