Volcano news & updates: Kilauea volcano (Big Island, Hawaii)
Kilauea volcano (Hawai'I) activity summary 30 May - 5 June
Wednesday Jun 06, 2012 10:05 AM | VON: T
During 30 May-5 June HVO reported that the circulating and spattering lava lake periodically rose and fell in the deep pit within Kilauea's Halema'uma'u Crater, rising as high as the inner ledge about 60 m below the crater floor. Periodic measurements indicated that the gas plume from the vent continued to deposit variable amounts of ash and Pele's hair onto nearby areas. The level of the lava pond in a small pit on the E edge of Pu'u 'O'o crater floor rose back into view.
Field geologists observed many lava flows coming down the pali and extending onto the coastal plain. A small new collapse pit in Pu'u 'O'o about 50 m west of the southern spatter cone was observed on 1 June; weak incandescence from this pit was visible in the thermal camera.
On 5 June geologists observed a second small collapse pit near the south-central edge that had been covered by a small shield of lava while the lava pond in the E collapse pit had risen to within about 5 m of the rim.
(Smithsonian / USGS Weekly Volcanic Activity Report)
Thursday, May 31, 2012
Following a week-long deflation, pressure returned to Kīlauea in full force, evidenced by an 8-microradian inflation at the summit! Correspondingly, the summit lava lake has returned to the previous record height of ~60m/200ft below Halema‘uma‘u crater floor, with exceptionally bright glow visible from the Jaggar Overlook over the past two nights! In the past, similar high lava stands have caused an increases in rim collapse and rarely, lava sprays visible from the museum! ... [mehr]
Sunday, May 27, 2012
After a week-long deflation on Kīlauea, lava flows which had reached within 0.5mi/750m of the ocean finally felt the pressure relief and came to a pause. At the time of this writing there is still low pressure on the volcano, and the longer this continues the more likely that the plumbing system will be disrupted and that lava will re-emerge in a new location -- whether on a new point up the lava tube, or even all the way back to Pu`u `O`o crater on the east rift zone. Magma continues to come into the volcano, as evidenced by continued extension, and without an outlet, sooner or later something will have to give! While there is no red lava visible on the coast today, there is still bright glow from the newest summit vent in the National Park. This is a crucial period of change for the volcano, and we all await what will happen next! [mehr]
Friday, May 18, 2012
Lava continues to flow on Kīlauea's coast, while its summit and rift zone continue to glow. Generally higher pressure over the past week, with fluctuations, has pushed new lava flows closer to the ocean than any time previously this year, but most are spreading out parallel to the coastline rather than directly to the ocean. Meanwhile, over the past week a new eastern flow branch developed above the pali and is now advancing down its steepest part, looking within reach of the coastal plain today. This eastern branch appears quite vigorous, and must be diverting a fair amount of lava from the flows near the coast. Stay tuned to find out if lava will reach the ocean for the first time in 2012 or if the volcano grows a new system of lava tubes or both! [mehr]
Tuesday, May 08, 2012
Kīlauea's lava flows have surged in activity on the coastal plain accompanying inflation at the summit, though following by about 24 hours. This activity is farther from the ocean than before, relatively close to the base of the pali but moving quickly across cooling flows from the previous two months. Check out our new time-lapse movie showing the height of activity! [mehr]
Saturday, May 05, 2012
Since entering the National Park, lava flows have continued to slowly advance towards the ocean but have not made much ground. Pressure variations propagating through Kīlauea volcano have kept the flows from building momentum, but they have persisted sluggishly and lava flows are still visible by means of a 6-7mi / 9-11km round-trip hike from the Kalapana side. When the lava is flowing more slowly (like right now), it actually gives us a chance to approach and interact with it more easily, whereas more vigorous flows require additional safety considerations. For non-hikers, strong glow continues from the summit, visible from Jaggar Overlook & Museum! [mehr]