HOME >> BIOLOGY >> NEWS
Geologists witness unique volcanic mudflow in action in New Zealand

Volcanologist Sarah Fagents from the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawaii at Manoa had an amazing opportunity to study volcanic hazards first hand, when a volcanic mudflow broke through the banks of a volcanic lake at Mount Ruapehu in New Zealand.

Fagents and colleagues were there on a National Science Foundation (NSF)-funded project to study the long-forecast Crater Lake break-out lahar at Mount Ruapehu. A lahar is a type of mudflow composed of water and other sediment that flows down from a volcano, typically along a river valley.

Lahars are caused by the rapid melting of snow and/or glaciers during a volcanic eruption, or as in the case of Mount Ruapehu, the breakout of a volcanic lake.

"Lahars can be extremely hazardous, especially in populated areas, because of their great speed and mass," said William Leeman, NSF program director for petrology and geochemistry. "They can flow for many tens of miles, causing catastrophic destruction along their path. The 1980 eruptions at Mount St. Helens, for example, resulted in spectacular lahar flows that choked virtually all drainages on the volcano, and impacted major rivers as far away as Portland, Ore."

Fagents visited stretches of the lahar pathway before the breakout to assess pre-event channel conditions. Although the event was predicted to occur in 2007, the recent decreased filling rate of Crater Lake suggested that the lake bank actually would not be overtopped until 2008.

However, several days of intense rainfall and increased seepage through the bank ultimately caused it to collapse much sooner, on March 18, 2007.

A lahar warning system had been installed at Mount Ruapehu, and was hailed a success after it successfully alerted officials to the onset of the lahar. In total, about 1.3 million cubic meters of water were released from Crater Lake.

"We found a broad area covered in a veneer of mud
'"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
13-Jul-2007


Page: 1 2

Related biology news :

1. Geologists use biotools to understand geosystems
2. Researchers witness natural selection at work in dramatic comeback of male butterflies
3. Researchers develop novel mouse model to witness immune system attack on chlamydia
4. Urban ecology study witnessing the birth of a designer ecosystem
5. A unique arrangement for egg cell division
6. Genomics study provides insight into the evolution of unique human traits
7. Liverpool amongst first in UK to install unique DNA sequencing technology
8. UD awarded $11M for osteoarthritis research and unique mentoring program for women scientists
9. Tumor vessels identified by unique molecular markers
10. New DNA study helps explain unique diversity among Melanesians
11. A unique twin study on the increased cardiometabolic risk in obesity

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/11/2020)... ... February 11, 2020 , ... The ... medical device accelerator in Port Covington, Baltimore. The newly formed company is developing ... addressed to manage increased demand for home dialysis treatments. The start-up company will ...
(Date:2/5/2020)... (PRWEB) , ... February 04, 2020 , ... ... Trademark Office (USPTO) issued the company a second patent related to proprietary liquid ... of Allowance compliments another patent from the USPTO issued on December 3, 2019. ...
(Date:1/29/2020)... (PRWEB) , ... January 29, 2020 , ... ... receptor and in vitro toxicology testing solutions, has announced a record earnings year ... upcoming weeks, INDIGO showed more than a twenty percent increase in revenue and ...
Breaking Biology News(10 mins):
(Date:1/27/2020)... ... January 27, 2020 , ... Cerebyte, ... cloud and mobile computing, today announced the availability of neuroscience of transformational leadership ... use the latest neuroscience of leadership and change research to become great transformational ...
(Date:1/24/2020)... ... 24, 2020 , ... The impact of new medicines, procedures, ... and clinical services during the first two decades of the 21st century have ... Slone Partners celebrates its 20th anniversary this year, its evolution as a ...
(Date:1/22/2020)... ... January 20, 2020 , ... ... with WAVE Electronics, the largest independent electronics distributor in the US, to make ... Smart Home Systems with leading smart home products from a single fulfillment partner. ...
(Date:1/22/2020)... Conn. (PRWEB) , ... January 21, 2020 , ... ... (CTC) liquid biopsy from a simple blood draw, today announced the sale of the ... Health. The Rare Scope will be used in clinical cancer research. , “The RareScope ...
Breaking Biology Technology:
Cached News: