Featured Research

from universities, journals, and other organizations

Hawaiian volcano crater floor collapse followed by eruption in fissue along Kilauea's east rift zone

Date:
March 7, 2011
Source:
U.S. Geological Survey/Hawaiian Volcano Observatory
Summary:
A fissure that opened on Kilauea's east rift zone after the March 5 collapse of the Pu'u 'O'o crater floor continues to erupt lava. Activity along the fissure was sporadic overnight and throughout the following day, with periods of quiet punctuated by episodes of lava spattering up to 25 meters (80 feet) high.

At 5:15 p.m. local time on March 5, 2011 an HVO geologist flying over Kīlauea's middle east zone reported an eruption near Napau Crater. Subsequent observations put the location at approximately 2 km WSW of Pu`u `O`o. This photo shows a close-up of a spattering fissure with lava reaching 10 meters (30 feet) into the air.
Credit: Tim Orr, USGS

A fissure that opened on Kilauea's east rift zone after the March 5 collapse of the Pu'u 'O'o crater floor continues to erupt lava. Activity along the fissure was sporadic overnight and throughout March 6, with periods of quiet punctuated by episodes of lava spattering up to 25 m (80 ft) high.

The fissure is located west-southwest of Pu'u 'O'o in a remote area of Hawai'i Volcanoes National Park. Due to the ongoing volcanic activity, Park closures remain in effect in this area.

Live views of Kilauea's fissure eruption are now possible via a Webcam installed by the USGS Hawaiian Volcano Observatory (HVO) this afternoon. The Webcam images, which are updated every five minutes, can be accessed at http://volcanoes.usgs.gov/hvo/cams/NCcam/.

Measurements made by HVO scientists show that the Pu'u 'O'o crater floor dropped at least 115 m (377 ft) during Saturday's collapse. The only signs of activity within the crater Sundaywere infrequent cascades of rock fragments falling from collapse blocks. This activity is visible when Pu'u 'O'o Webcam views, accessible at http://volcanoes.usgs.gov/hvo/cams/POcam/, are not obscured by volcanic fume.

Lava flows on the pali and coastal plain are still active, but sluggish. Whether these flows are residual lava draining through the tube system or outbreaks that continue to be fed by lava from the east rift zone vent is not yet known. Based on similar events in past years, it will take a day or two to see if the lava supply has been cut off by the uprift fissure eruption.

At Kilauea's summit, the lava lake has receded deep within the vent in Halema'uma'u Crater and is now barely visible in HVO's Webcam images (http://volcanoes.usgs.gov/hvo/cams/HMcam/). Small collapses of the vent walls occasionally produce dusty-brown plumes that can be seen from Park visitor overlooks.

Earthquakes are occurring at lower rates in the Napau Crater area adjacent to the new fissure eruption and beneath the summit caldera, but seismic tremor is significantly elevated in both areas. Summit deflation continues, but began to slow this afternoon. Deflation of the Pu'u 'O'o area has slowed throughout the day.

Daily updates about Kilauea's ongoing eruptions, recent images and videos of summit and east rift zone volcanic activity, and data about recent earthquakes are posted on the HVO Web site at http://hvo.wr.usgs.gov. Additional status reports will be posted as warranted.

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.


Story Source:

The above story is based on materials provided by U.S. Geological Survey/Hawaiian Volcano Observatory. Note: Materials may be edited for content and length.


Cite This Page:

U.S. Geological Survey/Hawaiian Volcano Observatory. "Hawaiian volcano crater floor collapse followed by eruption in fissue along Kilauea's east rift zone." ScienceDaily. ScienceDaily, 7 March 2011. <www.sciencedaily.com/releases/2011/03/110306234145.htm>.
U.S. Geological Survey/Hawaiian Volcano Observatory. (2011, March 7). Hawaiian volcano crater floor collapse followed by eruption in fissue along Kilauea's east rift zone. ScienceDaily. Retrieved August 29, 2014 from www.sciencedaily.com/releases/2011/03/110306234145.htm
U.S. Geological Survey/Hawaiian Volcano Observatory. "Hawaiian volcano crater floor collapse followed by eruption in fissue along Kilauea's east rift zone." ScienceDaily. www.sciencedaily.com/releases/2011/03/110306234145.htm (accessed August 29, 2014).

Share This




More Earth & Climate News

Friday, August 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Volcano Erupts on Papua New Guinea

Raw: Volcano Erupts on Papua New Guinea

AP (Aug. 29, 2014) Several communities were evacuated and some international flights were diverted on Friday after one of the most active volcanos in the region erupts. (Aug. 29) Video provided by AP
Powered by NewsLook.com
Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Scientists Have Figured Out Why Rocks Move In Death Valley

Scientists Have Figured Out Why Rocks Move In Death Valley

Newsy (Aug. 28, 2014) The mystery of the moving rocks in Death Valley, California, has finally been solved. Scientists are pointing to a combo of water, ice and wind. Video provided by Newsy
Powered by NewsLook.com
Big Waves, Minor Flooding from Hurricane

Big Waves, Minor Flooding from Hurricane

AP (Aug. 27, 2014) Thundering surf spawned by Hurricane Marie pounded the Southern California coast Wednesday, causing minor flooding in a low-lying beach town. High surf warnings were posted for Los Angeles County south through Orange County. (Aug. 27) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins