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#1Smithsonian / USGS Weekly Volcanic Activity Report
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano ...
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#2Volcano Hazards | U.S. Geological Survey - USGS.gov
Augustine · Behm Canal-Rudyerd Bay · Belknap Crater · Black Butte Crater lava field · Black Rock Desert volcanic field · Blue Lake Crater · Buzzard Creek · Carrizozo ...
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#3Volcano - Wikipedia
The form and style of eruption of a volcano is largely determined by the composition of the lava it erupts. The viscosity (how fluid ...
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#4Volcanism | Examples, Effects, & Facts | Britannica
volcanism, also spelled vulcanism, any of various processes and phenomena associated with the surficial discharge of molten rock, pyroclastic fragments, ...
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#5Photos: 2021—The Year in Volcanic Activity - The Atlantic
2021: The Year in Volcanic Activity ... This has been a big year for the world's active volcanoes. Out of an estimated 1,500 active volcanoes, ...
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#6Tonga: Volcanic Eruption and Tsunami - Jan 2022 | ReliefWeb
After weeks of volcanic activity emitting ash, the Hunga Tonga Hunga Ha'apai underwater volcano in Tonga erupted violently on 15 January.
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#7Tsunami hits Tonga after volcanic eruption | News | DW
A tsunami has flooded Tonga's capital after a large eruption from an undersea volcano. Other Pacific islands and the US have issued ...
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#8Tonga: Tsunami advisories lifted in US after waves hit ... - CNN
An underwater volcano in the South Pacific erupted violently on Saturday, ... lifted in US after waves hit Tonga following volcanic eruption.
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#9Tonga volcano eruption: What we know so far | Tsunami News
As the tsunami threat around the Pacific from a massive undersea volcanic eruption began to subside on Sunday, a huge ash cloud covering the ...
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#10Volcanic hazards - British Geological Survey
Volcanic eruptions can be explosive, sending ash, gas and magma high up into the atmosphere, or effusive, producing lava flows and domes. Show more · elesban- ...
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#11Why the volcanic eruption in Tonga was so violent, and what ...
The eruption is akin to a weapons-grade chemical explosion, and there could be several weeks or even years of major volcanic unrest to ...
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#12volcanic activity and eruptions
Volcanic activity ranges from emission of gases, non-explosive lava emissions to extremely violent explosive bursts that may last many hours.
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#13Key Facts About Volcanic Eruptions|Volcanoes - CDC
Major health threats from a volcanic eruption. Photo of volcano lava flow. Volcanoes spew hot, dangerous gases, ash, lava, and rock that are powerfully ...
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#14Tsunami hits Tonga after underwater volcanic eruption - The ...
Tonga underwater volcanic eruption creates tsunami waves – video ... island of Tongatapu, following a huge underwater volcano explosion.
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#15Volcanic eruptions - WHO | World Health Organization
A volcano is a vent in the Earth's crust from which eruptions occur. There are about 1500 potentially active volcanoes worldwide. When volcanoes erupt they ...
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#16What's Going On With The Volcanoes? - National Park Service
Kīlauea Eruption Update. Read the activity summary courtesy of USGS. Kīlauea volcano is erupting, and the current volcano advisory level is ...
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#17Volcanic Alert Levels - GeoNet
The NZ Volcanic Alert Level system is based on 6 levels and is intended to describe the current status of each active ... Volcano, Level, Volcanic Activity ...
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#18Massive volcanic eruption in Tonga caused 'significant damage'
A massive volcanic eruption in Tonga that triggered tsunami waves around the Pacific caused "significant" damage to the island nation's ...
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#19Volcanoes Today - summary of volcanic activity world-wide ...
Volcanoes Today, 16 Jan 2022: Semeru volcano, Shiveluch, Reventador, Sangay, Pavlof, Nevados de Chillán, Nevado del Ruiz, Sabancaya. Sun, 16 Jan 2022, 17:00. 17 ...
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#20Volcanic activity | Waikato Regional Council
The Taupo Volcanic Zone also includes the two most explosive caldera volcanoes, Taupo and Okataina. Lake Taupo was formed by a series of eruptions, the most ...
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#21Volcanic Activity | Earth Science
So, volcanic activity tends to occur along subduction plate boundaries, where one plate slides underneath another. The edges of the Pacific Plate make up a ...
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#22Volcanic Activity - an overview | ScienceDirect Topics
Volcanic activities are a natural geogenic source of acidity. Volatile mineral acids are thermally set free as gaseous SO2, HCl, and HF. After mixing with ...
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#23Volcanoes | Pacific Northwest Seismic Network
Simply the number of located earthquakes at or near a volcano is not necessarily indicative of impending volcanic activity. Besides number and size there are ...
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#24Recent volcanic eruptions on the moon | Science | AAAS
Recent volcanic eruptions on the moon. Scientists find 70 lava flows thought to have occurred within the past 100 million years. 12 Oct 2014; By ...
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#25Alaska Volcano Observatory
Color Code ORANGE / Alert Level WATCH volcano image. Full details ... LAST ACTIVITY REPORT. RSS FEED. Get these reports emailed to you: USGS ...
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#26Volcanic activity — Get Ready — Emergency preparedness in ...
Volcanic activity can include ashfall, falling rocks, hot gases and volcanic rock, lava flows, and massive mudflows. Find out what to do before, during and ...
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#27Aviation colour code map | Volcanic eruptions - Icelandic ...
Iceland Meteorological office - Volcanic eruptions, Iceland. ... issued for both increasing and decreasing volcanic activity, and are accompanied by text ...
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#28Tonga's volcanic eruption could be sign of increased activity ...
The eruption of underwater volcano Hunga-Tonga-Hunga-Ha'apai has had a significant impact on the environment beyond the tsunami felt in ...
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#29Tsunami threat recedes after undersea volcanic eruption in ...
The tsunami threat around the Pacific from a huge undersea volcanic eruption began to recede Sunday, while the extent of damage to Tonga ...
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#30Tsunami Threat Recedes from Huge Pacific Volcanic Eruption
This image taken by Himawari-8, a Japanese weather satellite operated by Japan Meteorological Agency, shows an undersea volcano eruption at ...
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#31Interactive map of volcanoes and current volcanic activity alerts
The U.S. Geological Survey's Volcanoes and Current Activity Alerts map shows the location and activity levels of all volcanoes in the United States.
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#32Volcanic Data and Information | NCEI - NOAA
Data line. Significant Volcanic Eruptions Database · Volcano Locations Database. Images and Posters line. Significant Volcanic Eruptions Poster.
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#33Signs of 'Significant' Tsunami Damage Are Seen in Tonga
Warnings are lifted around the Pacific as tsunami waves pass without major damage. How volcanic activity can cause tsunamis. The volcano that ...
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#34NEA | Regional Volcanic Eruptions - The National ...
This is a NEA's Regional Volcanic Eruption information webpage. ... The information on volcanic eruptions is obtained from Volcanic Ash Advisory Centres ...
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#35Volcano | Geoscience Australia
A volcano is a vent or chimney which transfers molten rock (known as magma) from depth to the Earth's surface through eruptions. Magma erupting from a ...
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#36Volcanic activity news and latest updates - Phys.org
Volcano. A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot, molten rock, ash, and gases to escape from below the surface ...
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#37How Volcanoes Influence Climate - UCAR Center for Science ...
Volcanic eruptions are responsible for releasing molten rock, or lava, from deep within the Earth, forming new rock on the Earth's surface.
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#38La Palma's volcanic eruption is officially declared over - NPR
Authorities on the Canary Islands declared an eruption that started in September officially finished following 10 days of no lava flows, ...
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#39Volcanic Eruptions and Their Repose, Unrest, Precursors...
Volcanic eruptions are common, with more than 50 volcanic eruptions in the United States alone in the past 31 years. These eruptions can have devastating ...
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#40Current Volcanic Activity - VMGD
The Vanua Lava volcanic activity is continuing at the low unrest level, consistent with the Volcanic Alert Level 1. New scientific analyses suggest that the ...
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#41Where Does Volcanic Activity Occur? | Earth 520
The ridges are the most volcanically active features on the planet. Plate boundary volcanism. Volcanic activity occurs at two types of plate boundaries: mid- ...
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#42Volcanoes – Utah Geological Survey
Volcanic hazards are typically those associated with active volcanoes and include volcanic eruptions of lava, ash, steam, and pyroclastics (rock material ...
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#43Pacific tsunami threat recedes, volcano ash hinders response
The tsunami threat around the Pacific from a huge undersea volcanic eruption began to recede Sunday, while the extent of damage to Tonga ...
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#44Volcanic activity « CIMSS Satellite Blog - University of ...
GOES-17 imagery revealed another explosive eruption of Hunga Tonga-Hunga Ha?apai in the south ... Here's another cool view of the Tonga volcanic eruption
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#45What do volcanoes have to do with climate change?
Volcanic eruptions are often discussed in relation to climate change because they release CO2 (and other gases) into our atmosphere.
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#46[Effects of volcanic eruptions on human health in Iceland ...
Volcanic eruptions are common in Iceland and have caused health problems ever since the settlement of Iceland. Here we describe volcanic activity and the ...
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#47Volcano World | Your World is Erupting | Oregon State University
Volcanic activity is the most powerful force in nature. Some volcanic eruptions are much more powerful than the largest nuclear explosion.
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#48How Do Volcanic Eruptions Generate Tsunamis?
Although relatively infrequent, violent volcanic eruptions represent also impulsive ... Diagram of how a volcanic eruption can generate a tsunami.
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#49Volcanoes and volcanic eruptions - GCSE Geography Revision
Effects of volcanic eruptions ; The lava and ash deposited during an eruption breaks down to provide valuable nutrients for the soil. This creates very fertile ...
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#50Get Ready for More Volcanic Eruptions as the Planet Warms
If they are right, today's global warming could mean more and bigger volcanic eruptions in the future. Throughout its history Earth has gone ...
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#51Stunning satellite images capture massive volcanic eruption ...
Satellite images show the volcanic eruption near the Pacific nation of Tonga that triggered many tsunami warnings, including in the western ...
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#52Volcanic Eruption - Topic - ABC News
Animation of Tonga volcanic eruption. An undersea volcano erupted in spectacular fashion Saturday near the Pacific nation of Tonga, sending tsunami waves ...
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#53What to do during a volcanic eruption - National Emergency ...
If outside at the time of eruption, seek shelter in a car or a building. If caught in volcanic ashfalls, wear a dust mask or use a handkerchief or cloth ...
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#54What Happens When a Volcano Erupts? - ThoughtCo
Volcanic activity is a fascinating, frightening, and an absolutely essential feature of our planet. Volcanoes are scattered everywhere, ...
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#55Volcanic Activity :: Coastal Systems Group - Woods Hole ...
Activity at Cleveland Volcano, Aleutian Islands, Alaska : Natural … ... Volcanoes affect global climate by putting carbon dioxide and aerosols into the atmosphere ...
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#56The Silent Build-Up to a Super-Eruption That Could ...
One of these volcanoes hides below the waters of Lake Toba in Sumatra and has caused two super-eruptions in the last one million year. But when ...
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#57Volcanic Eruptions | National Geographic Society
Students read first-person accounts of volcanic eruptions and illustrate the eruptions in order to compare and contrast them.
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#58Volcanic Activity in Britain - The Geological Society
The generally understood view of what constitutes volcanic activity is the eruption of volcanoes. However, another way of looking at it is as the ...
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#59Japan Meteorological Agency｜Volcanic Warnings
Volcanic Warnings/Forecasts, Eruption Notices and Volcanic Alert Levels in map form.
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#60Volcano Safety Tips - Red Cross
Let the American Red Cross teach you about volcano preparedness and what to do during a volcanic eruption. Be informed and learn more today.
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#61Volcanic Activity - Kean University
The controls on the type of igneous eruption (fissure vs. volcano). • Why some volcanoes are made up of lava and others of volcanic debris.
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#62Volcano | Washington State Military Department, Citizens ...
Volcanoes can lie dormant for centuries between eruptions, and the risk posed by volcanic activity is not always apparent. When Cascades volcanoes do erupt, ...
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#63Volcanic eruptions and environment - Lenntech
Environmental impact of volcanic eruptions. On locations where tectonic plates diverge or converge, volcanoes can be found. A volcano consists of a deep magma ...
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#64Volcanic eruption while travelling | Smartraveller
A volcano has erupted. A volcanic eruption nearby can be a life-threatening natural disaster. If you learn an eruption is imminent, or ...
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#65Volcanic Eruptions | Scholastic
How long does it take for a volcano to cool? How many volcanoes erupt every day? Expert volcanologist Dr. Stanley Williams answers students' questions.
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#66Types of Volcanoes & Eruptions - GNS Science
Volcanic fields, such as Auckland and Northland, are where small eruptions ... Each eruption builds a new single new volcano, which does not erupt again.
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#67As it happened: Tsunami warning after volcanic eruption in ...
The activity has been caused by the eruption at 4:10am (local time) of the Hunga Tonga-Hunga Ha'apai underwater volcano, located about 65km ...
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#68Volcanic eruption in Tonga leads to tsunami advisory in Alaska
A NOAA satellite image of an eruption of the Hunga Tonga-Hunga Ha'apai volcano, located in the South Pacific Kingdom of Tonga.
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#69Power of Plate Tectonics: Volcanoes | AMNH
In the ocean, volcanoes erupt along cracks that are opened in the ocean floor by the spreading of two plates called a mid-ocean ridge . Magma from Earth's upper ...
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#70Volcanic Eruptions and Hazards | PBS LearningMedia
Volcanic eruptions can drastically alter the geography of a region. Hot, liquid lava flowing downslope can force people living near volcanoes to flee their ...
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#71Unravelling the when, where and how of volcanic eruptions
Dome-building volcanoes, which are frequently active, are among the most dangerous types of volcanoes since they are known for their explosive activity.
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#72Volcanoes | New Scientist
A volcano is essentially a gap in Earth's crust where the surface is connected ... It is thought that huge bouts of volcanic eruptions in the ancient past ...
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#73Are earthquakes and volcanic eruptions related? - Earth ...
Are earthquakes and volcanic eruptions related? · Seismic waves could weaken the top of the magma chamber and cause an eruption; · Seismic waves could perturb the ...
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#74Tonga Volcanic Eruption, Tsunami Cause Significant Damage
Tonga's main island was damaged after an undersea volcano erupted and triggered a ... Increased volcanic activity leading up to the Jan.
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#75Tonga volcanic eruption: 'Too early to tell' - Jacinda Ardern on ...
Tonga volcanic eruption: 'Too early to tell' - Jacinda Ardern on injuries, damage from disaster. 15 Jan, 2022 05:39 PM 6 minutes to read.
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#76Volcanic Activity | Encyclopedia.com
Volcanic ActivityVolcanic activity has played a dominant role in shaping the face of Earth. Much of the natural beauty of the land, its mineral wealth, ...
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#77Looking Back at an Eventful 2021 in Volcanic Eruptions
The lava flows from the eruption on La Palma in the Canary Islands on September 20, 2021. Credit: Eduardo Robaina, Wikimedia Commons.
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#78Anticipating Climate Impacts of Major Volcanic Eruptions - Eos
NASA's rapid response plan for gathering atmospheric data amid major volcanic eruptions, paired with efforts to improve eruption simulations ...
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#79Evacuating During Volcanic Activity - UH Hilo
Evacuating During Volcanic Activity. If you live downhill of a rift zone and an eruption breaks out above your house, you will be ordered to evacuate the ...
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#80Volcanic Activity Information - BOP Civil Defence
The Okataina Volcanic Centre is a caldera volcano and produces infrequent but large volcanic eruptions. The last eruption was in 1886 and created ...
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#81(PDF) Volcanic Eruptions in the Deep Sea - ResearchGate
PDF | Volcanic eruptions are important events in Earth's cycle of magma generation and crustal construction. Over durations of hours to years, eruptions.
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#82Impacts of volcanic eruption off Tonga were felt across Hawaii
The impacts of the volcanic eruption off Tonga was felt across the Pacific, reaching Hawaii early Saturday morning on Jan. 15.
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#83Massive Underwater Volcanic Eruption Felt Around The World
A massive volcanic eruption in Tonga that triggered tsunami waves around the Pacific caused "significant damage" to the island nation's ...
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#85Eruption in Iceland may mark the start of decades of volcanic ...
Evidence from both historical accounts and ancient lava flows shows that whenever this region has experienced a major uptick in seismic activity ...
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#86Huge Tonga volcanic eruption caused 'significant damage'
WELLINGTON:" A massive volcanic eruption in Tonga that triggered tsunami waves around the Pacific caused "significant damage" to the island ...
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#88Tsunami threat recedes from huge Pacific volcanic eruption
The tsunami threat around the Pacific from a huge undersea volcanic eruption began to recede Sunday, while the extent of damage to Tonga ...
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#90Huge Tonga volcanic eruption caused 'significant damage'
A massive volcanic eruption in Tonga that triggered tsunami waves around the Pacific caused "significant damage" to the island nation's ...
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#91Tonga: Huge volcanic eruption triggers tsunami warnings and ...
The volcanic eruption on Saturday is the latest in a series of eruptions from the Hunga Tonga Hunga Ha'apai volcano in the region.
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#92Different Impacts of Northern, Tropical, and Southern Volcanic ...
Following northern and tropical volcanic eruptions, the SST in the central and eastern ...
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#93Volcanic Activities - Yangmingshan National Park
Currently, the only areas in Taiwan where there are signs of volcanic activities are the Datun Volcano Group in northern Taiwan, the Guishan Island off the ...
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#94Indonesia considers relocations after deadly volcanic eruption
Indonesia's volcanology agency is sending a team of researchers to the Mount Semeru volcano to identify areas too dangerous for villagers to ...
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#95Global hydroclimatic response to tropical volcanic eruptions ...
Large tropical volcanic eruptions can affect the climate of many regions on Earth, yet it is uncertain how the largest eruptions over the past ...