September 13 , 2016. EN. White Island , Mayon, Piton de la Fournaise , Mauna Loa .

Home / blog georges Vitton / September 13 , 2016. EN. White Island , Mayon, Piton de la Fournaise , Mauna Loa .

September 13 , 2016. EN. White Island , Mayon, Piton de la Fournaise , Mauna Loa .

September 13 , 2016.



White Island , New Zealand  :

12:50 pm Tuesday 13 September 2016

Alert Status
Volcanic Alert Level 3 (change from Level 1)
Aviation Colour Code: Orange (change from Green)

The level of volcanic activity at White Island has increased late this morning with minor volcanic ash been passively emitted from a vent on the 2012 lava dome. A report from the island at 11.50 h has confirmed the ash emission.




The Volcanic Alert Level is now raised to Level 3, from Level 1.
The Aviation Colour Code is changed from Green to Orange.

The current activity is minor. We are unsure of the implications for visitor safety and will be issuing a further VAB later this afternoon (3 pm).

Update 3pm .

As far we can tell from our monitoring data there has been no escalation in the level of activity at White Island since late morning. Seismic activity remains low on the island. Some of our cameras are now been affected by ash and steam, so we may not see much from them in the short term.


white island

Ash plume from the north side.

The level of volcanic activity seen earlier today was very minor, with volcanic ash been passively emitted from a vent on the 2012 lava dome.

The ash is visible on a NZ Metservice visible satellite image, which shows a plume extending offshore of East Cape. Any ash fall will follow wind direction and is likely to be blown offshore over the next day.

The current activity is minor. We will review the situation in the morning unless changes occur overnight. Implications for visitor safety remain unclear.


Source : Geonet / Steve Sherburn

Photos : Geonet



Mayon , Philippines :

MAYON VOLCANO BULLETIN 13 September 2016 8:00 A.M.

Mayon Volcano’s seismic monitoring network recorded three (3) volcanic earthquakes during the past 24 hours. Weak to moderate emission of white steam plumes that drifted towards southwest and northeast was observed. No crater glow was observed last night. Precise leveling survey results on August 16-25, 2016 indicated inflation of the edifice relative to May 2016 consistent with the continuous GPS data and tilt measurements since July 2016. Sulfur dioxide (SO2) emission was measured at an average of 188.54 tonnes/day on September 6, 2016. However, weak but continuous emission of a slightly bluish plume, and strong sulfuric odor from the summit crater were detected during an aerial survey in the morning of September 10, 2016.



Alert Level 1 remains in effect over Mayon Volcano, which means that it is at 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 (PDZ) 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.

12 SEPTEMBER 2016. The Philippine Institute of Volcanology and Seismology (Phivolcs) has reiterated its warning against entering the 6-kilometer radius permanent danger zone (PDZ) as lava wall collapse may occur that could lead to pyroclastic flow in the southeast quadrant of the restive Mount Mayon here.


«Possible collapse of lava wall might occur due to brittleness of the wall instigated by molten materials. Wall collapse is very dangerous because that could trigger pyroclastic flow,” Phivolcs regional director Ed Laguerta said on Monday.
He explained that if the lava dome currently blocking the volcano’s rim explodes side by side with the wall collapse then pyroclastic flow may fall anytime.

“So we are reiterating to the public not to enter the six-kilometer danger zone even though Mayon Volcano appears very calm. We don’t know when the volcano may erupt but fresh magma beneath the volcano is activating,” Laguerta said.

Source : Phivolcs , MANILA TIMES .

Photos : S. Pineda , volcaneshistoricos .


Piton de la Fournaise , La Réunion :

La Fournaise enters its third day of eruption, under the clouds. That he simply scold or it spits lava fountains, the volcano is a well Reunion passion. Its popularity, easy to measure: it is enough to observe the length of the car queues at Pas de Bellecombe, the number of helicopters in the sky, or the flow of playful posts on social networks. And the eruption that began Sunday, September 11, 2016, and continues on Tuesday, is no an exception.


This morning at 6:30, the fog made the observation of the eruption difficult from the Pas de Bellecombe, as shown by the surveillance cameras of the Observatory of the volcano.

Since Sunday, thousands of islanders have organized to go watch the second eruption of the year, and the images taken by amateurs or professionals are flooding the Internet.

The question is for each new eruption. When will the opportunity to go see the show closer, that is to say in the Enclos while ensuring maximum security for visitors? As usual, it is by far that the public admire every waking of the volcano. Between prohibit any and all open, the prefect had opened a middle way earlier this year by announcing the launch of training for mountain guides to take tourists on eruptions in such a way « secure ».

An advanced for some, a « privatization » of the volcano for others pointing to the cost of these upcoming events. It will take time for the amount. The outputs accompanied in the Enclos this will not be again for this eruption. Scheduled for June, the training was postponed until better for February 2017. All accompanying however responded positively to the call. The blockage would focus on the resources allocated to the Volcano Observatory.


  No more than 80 people

With this new device, the latter shall in addition to its scientific mission make a kind of continuous monitoring in order to allow the groups down. He has not the human resources. Reinforcement would be to study and things would go in the right direction according to a source familiar with the matter. Meanwhile, it is from the Pas de Bellecombe that the public should watch the show. Mentioned yesterday, an opening of the Enclos under control has been ruled out for now, the eruption is not yet being « stabilized« Some people believe that a new stage has been reached in the « prohibition«  with the closure of the path of Nez Coupe Sainte-Rose because of the risk of wildfire. « At that rate, so close the whole mountain is safer , quips a passionate, in 1998 thousands of people took and everything went very well. If there had been a death in 2003 it was due to imprudence, we always opens a largest umbrella. « 


The union president of mountain guides, Jerome Turpin, remains confident about progress of the project in which the specification is finalized. A maximum of 80 people would be allowed to go down at the same time in the Enclos and accompanied by a group of 7 people. Like the firefighters and police, the guides will be able to mobilize quickly and to ensure all bearings during the eruption. At the same time, the prefecture said that opening « there » is always possible. For now, it does not take the way.

Source : IP Reunion , Clicanoo .

Photos : Jonathan Payet , Ilotdrone .



Mauna Loa , Hawai :

19°28’30 » N 155°36’29 » W,
Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Activity Summary:
Rates of deformation and seismicity at Mauna Loa remain above long-term background levels.

Mauna Loa is not erupting. Global Positioning System (GPS) measurements continue to show ground surface deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone, with inflation occurring mainly in the southwestern part of Mauna Loa’s summit caldera magma storage complex.
Shallow earthquakes, at depths less than 5 km (3 mi) beneath the south caldera and upper Southwest Rift Zone, continue to occur.


mauna loa

View looking up Mauna Loa’s spectacular Southwest Rift Zone. Puʻu o Keokeo fills the lower half of the photo. The black lava beyond is mostly from 1916 and 1926. The summit of Mauna Loa is in the background.

Early Tuesday morning, a magnitude 4 earthquake occurred at a depth of 1.2 km (0.7 mi) beneath the southern caldera region. Following this event, HVO recorded no significant changes in deformation or seismic monitoring data. The Volcano Alert Level for Mauna Loa remains Advisory.
Measurements from a continuously-monitored fumarole site within the summit caldera showed relatively steady fumarole temperatures and no significant changes in either sulfur dioxide or carbon dioxide concentrations in volcanic gas emissions.

Source : HVO

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