• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Manifest Learning Academy
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
JournalsOfIndia
No Result
View All Result
Home Places in News

Whakaari / White Island

April 22, 2022
in Places in News
Reading Time: 3 mins read
0
Whakaari / White Island
536
VIEWS
Share on WhatsAppShare on TelegramShare on Facebook
image_pdfMake PDF
In news– Recently, new research has detected pre-eruption warning signals at Whakaari/ White Island and other active volcanoes.

Key findings of the research-

  • The researchers have discovered that volcanoes share behaviour traits and this could form the basis for an eruption warning system.
  • Every volcano behaves differently: some have crater lakes while others are “dry”, they have diverse magmas and rise to different elevations. 
  • Despite these differences, researchers think volcanoes such as Whakaari, Ruapehu and Tongariro in New Zealand could be driven to eruption by common processes in the shallow subsurface below their craters.
  • Researchers have used machine learning to sift through 40 years of seismic data from the New Zealand volcanoes and three others around the world, listening for particular frequencies that track the depth where gas, magma or water are moving or building up.
  • They saw one pattern repeatedly, which is a slow strengthening of a quantity called Displacement Seismic Amplitude Ratio (DSAR), which peaks a few days before each event.
  • DSAR is a ratio that compares the “activity” of fluids (gas, hot water, steam) at the volcano’s surface to those several hundred metres deep. 
  • When DSAR increases, surface fluids are quiet, but deep ones are still actively moving and circulating vigorously below ground.
  • As this fluid circulates below the vent, it is registered as noise or “tremor” on seismometers.
  • This indicates a blockage or seal has formed, preventing gas escape and hence it explodes.
  • This has resulted in geysers and fountains, throwing mud and debris up.

About Whakaari White Island-

  • It is an active andesite stratovolcano situated 48 km from the east coast of the North Island of New Zealand, in the Bay of Plenty. 

  • The island is New Zealand’s most active cone volcano, and has been built up by continuous volcanic activity over the past 150,000 years. 
  • The island has been in a nearly continuous stage of releasing volcanic gas at least since it was sighted by James Cook in 1769. 
  • Whakaari erupted continually from December 1975 until September 2000, and also erupted in 2012, 2016.
  • On December 9, 2019 high-pressure steam and gas exploded, concentrating in a deadly surge of hot ash down its main access valley. 

Mount Ruapehu-

  • Mount Ruapehu is a 2,800 m stratovolcano in New Zealand’s central North Island.
  • It is also capped by a hydrothermal system and a warm crater lake (Te Wai a Moe).
image_pdfMake PDF
Source: Down to Earth
Tags: NewspaperPrelims

Related Posts

Kochi Water Metro

Kochi Water Metro

April 26, 2023
Nagorno-Karabakh

Nagorno-Karabakh

April 26, 2023
India’s first underwater metro route

India’s first underwater metro route

April 26, 2023
Jerusalem’s Al-Aqsa mosque

Jerusalem’s Al-Aqsa mosque

April 6, 2023
The first cable-stayed railway bridge of India

The first cable-stayed railway bridge of India

March 29, 2023
What is the Hasdeo movement?

What is the Hasdeo movement?

March 8, 2023
Iran claims to have unearthed massive lithium deposit

Iran claims to have unearthed massive lithium deposit

March 7, 2023
Protected forests of Buxwaha

Protected forests of Buxwaha

March 6, 2023
Mukaab – a cube-shaped super-city

Mukaab – a cube-shaped super-city

February 23, 2023
Venice canals

Venice canals

February 23, 2023
Please login to join discussion

Our Offline Classroom Student

CONGRATULATIONS TO 2021 TOPPERS !!!

Rank 171 Kumar Shivashish
Rank 250 Sahithya
Rank 263 Sumit Kumar Thakur
Rank 311 Deepak Ramachandra Shet
Rank 455 Ravinandan B M

July 2025
MTWTFSS
 123456
78910111213
14151617181920
21222324252627
28293031 
« May    

Browse by Category

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tags

AIR All India Radio BBC Business Line Business Standard dow Down to Earth DownToEarth DTE Economic Times ET FAO Financial Express GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express Indiatoday India today Kurukshetra Livelihoods portal LiveMint Mains News Newspaper News Paper PIB Prelims PRS India RSTV Science Reporter Survey The Hindu The India Express The Indian Express The Print the wire Times of India TOI TOPPERS Yojana
JournalsOfIndia

Our vision is to orient the readers to grasp the facts objectively and analyse critically. In the rush of reaching first to the readers, the websites miss the balanced opinion, which is the need of the hour. We aim to reach the readers with more crispness, preciseness and relevance. We bring the articles in UPSC way for the civil services aspirants and the Wisest Way for general readers.

Categories

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tag

AIR All India Radio BBC Business Line Business Standard dow Down to Earth DownToEarth DTE Economic Times ET FAO Financial Express GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express Indiatoday India today Kurukshetra Livelihoods portal LiveMint Mains News Newspaper News Paper PIB Prelims PRS India RSTV Science Reporter Survey The Hindu The India Express The Indian Express The Print the wire Times of India TOI TOPPERS Yojana

Newsletter

The most important UPSC news and events of the day.

Get Journals daily newsletter on your inbox.

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

  • Login
  • Sign Up
  • Home
  • SNIPPETS
  • ARTICLES
  • BROWSE
  • DOWNLOADS
No Result
View All Result

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In