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Seismograph

Shallow 5.0 magnitude earthquake recorded off Bali near active Mount Agung volcano


Coconuts
Thu, 09 Nov 2017 15:41 UTC
Earthquake strike near Mount Agung
Earthquake strike near Mount Agung
An earthquake measuring 5.0 magnitude on the richter scale was detected in Bali near Mount Agung on Thursday morning.

The quake's epicenter was in the sea, 11 kilometers east of Karangasem, at a depth of 10 kilometers at 5:54am local time, according to data from the Bali Meteorology, Climatology and Geophysics Agency (BMKG).

The earthquake did not trigger a tsunami warning.

The epicenter was about 12 to 13 kilometers from the summit of Mount Agung, Bali's rumbling volcano that is currently on level III "standby" the second highest alert level for an eruption. Agung has been on standby since Oct. 29 after previously being on level IV "danger" for five weeks.
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Attention

Popocatepetl Volcano drops ash on central Mexico towns

Victoria Ritter
Gears of Biz
Mon, 06 Nov 2017 10:47 UTC
Popocatepetl Volcano
Popocatepetl Volcano
Central Mexico's Popocatepetl Volcano scattered ash on two nearby towns on Saturday, following a series of minor eruptions.

The National Disaster Prevention Center (Cenapred), which monitors volcanic activity, said some 200 "low-intensity exhalations and three explosions" had taken place starting early Friday and ending early Saturday.

The last eruption, at 6:08 a.m., led to "a slight drop of ash" in the towns of Yecapixtla and Zacualpan, both in central Morelos state.

Located just 60 km south of the capital Mexico City, Popo, as the volcano is commonly known, has been off limits to mountain climbers since the long dormant volcano became active again in 1994.

Its last major eruption was in 1947.


Source: Xinhua

Comment: For more on volcano activity and research visit our dedicated topic pages here.

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Attention

Warning issued amid seismic activity at Mount Lokon in North Sulawesi, Indonesia

Eva Aruperes
The Jakarta Post
Sun, 05 Nov 2017 10:37 UTC
Mount Lokon in Tomohon, North Sulawesi, in this undated file photo.
© Lucky PransiskaMount Lokon in Tomohon, North Sulawesi, in this undated file photo.
Local authorities have prohibited residents and visitors from coming within a 1.5-kilometer radius from the crater of Mount Lokon in Tomohon, North Sulawesi, amid increased volcanic activity.

The volcano had shown increased seismic activity marked by tremors since Thursday, said Farid, the head of Lokon's monitoring post.

Authorities have issued a waspada (Level II) alert level for the volcano.

"The tremors from Mt. Lokon suggest that gas and magma are migrating, which means pressure has been accumulating," Farid said on Saturday.

The Lokon monitoring post has been coordinating with the Tomohon Disaster Management Agency (BPBD) since Friday in taking preventive measures.
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Binoculars

Alarm as Philippines' Mayon Volcano shows 'abnormal behavior'


Business Mirror
Mon, 06 Nov 2017 10:28 UTC
Mayon volcano
Mayon volcano
The Philippine Institute of Volcanology and Seismology (Phivolcs) raised Alert Level 1 over Mayon Volcano in Albay province after it recorded 25 volcanic earthquakes on Monday and the sulfur-dioxide (SO2) emission went significantly higher than the standard measurement.

In its latest bulletin, Phivolcs said the quakes that rocked the volcano on Monday and the spewing of an above normal SO2 gas signify the volcano remains restive. SO2 emission was measured at 633 tons, which is significantly higher than the standard measurement of 500 per day

The volcanic quakes brings to 91 the total number of quakes that jolted Mount Mayon for the past two days.

When asked about the increasing SO2 emission, Phivolcs volcanologist Ed Laguerta said the abnormal emission could either be due to steam degassing or magma pressure beneath the volcano vent.
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Snowflake Cold

Future volcanic eruptions could cause more climate cooling


Science Magazine
Sat, 04 Nov 2017 08:37 UTC
volcano eruption tent camping
Major volcanic eruptions in the future have the potential to affect global temperatures and precipitation more dramatically than in the past because of climate change, according to a new study led by the National Center for Atmospheric Research (NCAR).


Comment: In the past the effect of volcanic eruptions was similar, a major volcanic eruption leads to global cooling:


The study authors focused on the cataclysmic eruption of Indonesia's Mount Tambora in April 1815, which is thought to have triggered the so-called "year without a summer" in 1816. They found that if a similar eruption occurred in the year 2085, temperatures would plunge more deeply, although not enough to offset the future warming associated with climate change. The increased cooling after a future eruption would also disrupt the water cycle more severely, decreasing the amount of precipitation that falls globally.

The reason for the difference in climate response between 1815 and 2085 is tied to the oceans, which are expected to become more stratified as the planet warms, and therefore less able to moderate the climate impacts caused by volcanic eruptions.
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Seismograph

Fears Tenerife's Mount Teide volcano in the Canary Islands is about to BLOW following 22 earthquakes in 4 days

Phoebe Weston
Daily Mail
Thu, 02 Nov 2017 10:26 UTC
A seismic swarm of 22 earthquakes have rocked Tenerife in just four days sparking fears Mount Teide (pictured) could be about to erupt
A seismic swarm of 22 earthquakes have rocked Tenerife in just four days sparking fears Mount Teide (pictured) could be about to erupt
A swarm of 22 earthquakes has rocked Tenerife in just four days sparking fears Mount Teide could be about to erupt.

The tremors struck the popular tourist village of Vilaflor on the slopes of the 12,000ft volcano last week.

They were relatively minor quakes, however. The most power was a tremor of magnitude 1.4 striking at 11.05am local time (11:05 GMT, 06:05 GMT) on Tuesday morning.

Mount Teide's 3,718-metre summit is the highest point in Spain and a major tourist attraction with around three million tourists visiting every year.

The seismic swarm, recorded at an average depth of six to eight kilometres below sea level, took place over four days from 28 October to 31 October.

The Volcanological Institute of the Canary Islands (Involcan) have been trying to calm people.

Comment: This report should also viewed in the wider context of the increased seismic activity noted elsewhere around this archipelago over the last 4 weeks, as illustrated by the following reports:-

Canary Island volcanologists monitoring eruption, tsunami risks from Cumbre Vieja after recent wave of tremors

La Palma volcano in the Canary Islands hit by hundreds of earthquakes in 15 hours

Scientists on alert as underwater volcano Tagoro in the Canary Islands bursts into life

40 earthquake tremors in 48 hours hit La Palma, Canary Islands

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Attention

Mayon Volcano in the Philippines remains on alert level 1 after 57 volcanic quakes


Sun Star
Mon, 30 Oct 2017 20:22 UTC
Mayon Volcano in Albay province is Bicol region’s top attraction.
© Michael B. JaucianMayon Volcano in Albay province is Bicol region’s top attraction.
The Philippine Institute of Volcanology and Seismology (Phivolcs) said Monday, October 30, that Mayon Volcano remains on alert level 1 following the occurrence of at least 57 volcanic quakes since Saturday, indicating its sustained abnormal state.

Alert Level 1 means Mount Mayon is having an "abnormal condition."

"Although this means that presently no magmatic eruption is imminent, it is strongly advised that the public refrain from entering the 6-kilometer radius Permanent Danger Zone due to the perennial life-threatening dangers of rockfalls, landslides/avalanches at the middle to upper slope, sudden ash puffs and steam-driven or phreatic eruptions from the summit," the Phivolcs 8 a.m. bulletin stated.

Phivolcs resident volcanologist Ed Laguerta said the agency is closely monitoring the surge of volcanic earthquakes currently taking place for the past three days, specifically the parameters that could trigger the volcanic tremors.
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Attention

Mount Sinabung erupts in North Sumatra, Indonesia


Netral News
Tue, 24 Oct 2017 21:45 UTC
Mount Sinabung eruption.
Mount Sinabung eruption.
Mount Sinabung has erupted, producing hot clouds of 4.5km from east to southeast, Head of Data and Information Center of National Disaster Management Agency's (BNPB) Public Relations Sutopo Purwo Nugroho said.

Sutopo said the eruption occurred at 9:59 PM, Tuesday (24/10/2017), with column height of 2km.

He added that Mount Sinabung erupted once again on the same day at 2:45 pm.

During the second eruption, Mount Sinabung produced hot clouds that slid as far as 3km from east to southeast. The column height was 1km.

"Mount Sinabung erupted again on 10/24/2017, 2:45 pm. Hot clouds glide 3km from the east to southeast. Column height was 1km. It was a 300-second-long quake," said Sutopo, in his Twitter, @Sutopo_BNPB.
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Attention

Strong explosions on Stromboli volcano, Italy

Volcano News
You Tube
Wed, 25 Oct 2017 21:26 UTC
Stromboli volcano
Stromboli volcano
A strong explosion occurred at the volcano this afternoon at 16:04:40 local time. Bombs were landing on a vast area around the crater terrace including the viewing area on Pizzo, but fortunately, it seems that no people were there at the time of the eruption. Video kindly provided by: INVG Catania

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Attention

Reports of ashfall as Tinakula volcano erupts in the Solomon Islands


RNZ
Sat, 21 Oct 2017 14:02 UTC
A satellite image of Tinakula, Solomon Islands, taken in 2012
© NASA Earth ObservatoryA satellite image of Tinakula, Solomon Islands, taken in 2012
Authorities in the Solomon Islands are trying to work out if there's been any damage after a remote volcano erupted early this morning.

The volcano, Tinakula, which forms an uninhabited island in the northern Temotu province, roared to life at about 2am today.

Villages on nearby islands have reported heavy ashfall.

The director of the National Disaster Management Office in Honiara, Loti Yates, said a police patrol had been deployed from the provincial capital, Lata.

He said information had been slow to trickle out of the remote area, and it could be some time before the full situation was known.

An aviation warning has been issued for the Santa Cruz area.
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