September 27 , 2017. EN. Agung , Ambae , Nevado Del Ruiz , Fuego .
September 27 , 2017.
Agung , Indonésia.
From yesterday to today, the volcano was clearly visible until the fog came. Above the crater a weak white smoke rises with a height of 50 to 200 m above the peak.
On September 26, 2017, 373 shallow volcanic earthquakes (VB), 579 volcanic earthquakes (VA), and 50 local tectonic earthquakes (TL) were recorded. On September 27, 2017 from 00:00 to 06:00, 106 shallow volcanic earthquakes (VB), 165 volcanic earthquakes (VA), 27 local tectonic earthquakes (TL) were recorded.
An earthquake occurred on September 26, just 3.3 km from the Agung volcano.
The earthquake, magnitude M4.2, was shallow, 5 km deep.
VONA: An ORANGE color code was issued, published on September 26, 2017 at 05:27, linked to the increased activity of the volcanic seismicity which becomes very important. Erupting materials and ash were not observed.
We are still awaiting the activity of the Agung volcano on the island of Bali .
The volcano is not yet erupted and no ash has been seen, but when visibility allows (there is fog and rain), a 200-meter white fumarole is seen coming out of the crater. This fumarole is water vapor, indicating that the heat of the magma heats the water that evaporates.
The reason for the alarm is the increase in a few days of the energy of the tremor and the increase in the number of superficial earthquakes, indicating a rise of the magma. Fortunately, there is still no ash emission. There is an exclusion zone between 9 and 12 km around the volcano depending on the area.
Meanwhile, 50,000 people are evacuated. Animals are also a concern for evacuees in trucks or those whose landlords attend during the day in the exclusion zone despite the recommendations. Thousands of evacuees live in temporary shelters, sports centers, rooms in villages, relatives or friends. Others have gone to other neighboring islands.
Masks are distributed among the population to protect themselves from ashes, blankets and mattresses.
An eruption of this volcano is very worrying. They range between a volcanic explosive index of 1-2 to 5. In 1963, the eruption had an IEV 5.
The 1963 eruption, preceded by a few days with detected earthquakes, began with a flow of lava and was followed by two explosive phases. The lava flow reached 7.5 km during the first 26 days of the eruption. Each of the explosive phases formed eruptive columns at least 20 km in height, each lasting about four hours and producing deadly pyroclastic flows and lahars. The ashes of the 1963 eruption reached Jakarta, about 1000 kilometers.
Erupting plumes could revolve around the world, influence aviation for weeks and even affect the weather.
Source : VSI , AVCAN ( O Rodriguez)
Ambae, Vanuatu :
The Ambae volcano evacuated with fear.
26 SEPTEMBER 2017. There is a growing fear among evacuees on the island of Ambae, where a shelter begins to flow as more than a thousand people flee the volcano Manaro Voui erupts. Approximately two-thirds of the population of the 10,000 inhabitants of the island have already been evacuated from the danger zone around the volcano.
But residents say that ash falls over more communities and people are frightened by the rise of volcanic eruptions that they believe are stronger than they have heard before.
The chairman of the Ambae Disaster Committee, Manuel Amu, said the current event is worse than the last one in 2005. Mr. Amu said they desperately need temporary shelters while two to three thousand people should arrive in the evacuation centers installed on the western and eastern sides of the island.
He said that some people have already left the island and others are considering doing the same. « The people of the neighboring islands that are here have already moved, like the island of Pentecost and Maewo, » he said.
Manuel Amu said that 12 years ago, it took three months before people could return to their villages, and he feels that this situation is even worse.
« In 2005, the evacuation was carried out at alert level 3. But at the moment, the volcano is on level 4, we are just starting our evacuation and at the moment it is more serious than in 2005. And I think it will take much longer than what happened in 2005, « he said. Amu appealed to people from the province of Penama living in the capital and Port Vila and near Santo to help feed their loved ones.
The Vanuatu government spent about US $ 2 million on the evacuation. But Manuel Amu said there was also a lot of confusion on the island as they received no official confirmation that a state of emergency had been declared as reported in the local media, 2 million US dollars would have been approved to facilitate evacuations.
Amu said the 10,000 people on the island need urgent help for food, water and other supplies.
Ambae Evacuation Center – people can only take what they can carry. Companies in both Port Vila and Luganville donate emergency supplies, including food and water, to send to those who have been evacuated.
In the past few weeks, a cone of ashes filled with a lava basin has emerged from the crater lake on the Manaro volc volc. It is feared that the cone will break, the mixture of water and lava could cause a powerful explosion.
The director of the Vanuatu Livestock Department, Lonny Bong, ordered all animals from the provincial Penama Small Animal Breeding Center to be evacuated to nearby Maewo Island until the threat of eruption Ambae decreased. Small animals include goats, pigs, ducks and chickens.
Meanwhile, it was unclear at this stage what warranty existed for the property and animals to be kept safe from vandals in the absence of their owners. Our correspondent said that the government had yet to indicate whether other police would be sent to the villages to ensure that the property was secure.
Source : RADIO NZ
Photos : Haos Blong Volkeno.
Nevado Del Ruiz , Colombia :
Activity report of the volcano Nevado del Ruiz.
The level of activity continues at level: level yellow or (III): evolution of the behavior of the volcanic activity.
Regarding the monitoring of the activity of the volcano Nevado del Ruiz, the COLOMBIAN GEOLOGICAL SERVICE reports that:
During the last week, the various monitoring parameters show that the Nevado del Ruiz volcano continues to exhibit unstable behavior.
The seismicity caused by fracturing of the rocks that form the volcano increased both in number of earthquakes and in seismic energy released compared to the previous week. The earthquakes were mostly in the northern remote areas, about 7.0 km from the Arenas crater and, to a lesser extent, in the Northeast, South-East, South, South-West and around the crater. The depths of the earthquakes varied from 1.0 to 7.4 km. The maximum magnitude recorded during the week was 3.6 ML (local magnitude), corresponding to an earthquake recorded on 23 September at 08:24 (local time), located in the distal North sector 7.0 km from the Arenas crater at a depth of 5.6 km, this earthquake was reported to be felt by the staff of the National Park of Nevados (PNNN), as well as in the municipalities of Manizales and Villamaría.
The seismic activity associated with fluid dynamics inside the volcanic structure ducts showed levels similar to previous weeks in both the number of recorded earthquakes and the seismic energy released. This type of activity was mainly characterized by the appearance of multi-fluid, long-period and very long-period earthquakes, as well as tremor pulses.
Volcanic deformation, measured from electronic inclinometers, satellite navigation systems (GNSS) and satellite images, to determine changes in tilt, position and shape of the volcano, continues to record some modifications .
The volcano continues to emit water vapor and gases, including sulfur dioxide (SO2), as evidenced by the values obtained by SCANDOAS stations installed in the volcano area and the analysis of satellite images. In the follow-up of the information provided by the NASA FIRMS portal, two alerts associated with thermal anomalies were recorded near the Arenas crater.
The gas and steam column reached a maximum height of 1300 m measured at the top of the volcano on 21 September. The direction of the dispersion of the column was governed by the direction of the wind in the zone, which during the week predominated towards the northwest of the Arenas crater.
The volcano Nevado del Ruiz continues to yellow activity level.
Source : SGC
Fuego , Guatemala :
Type of activity: Vulcanian
Morphology: Composite stratovolcano
Geographical location: 14 ° 28’54˝ Latitude N; 90 ° 52’54˝ W. Length
Weather conditions: Cloudy
Winds from the NNW at 5 mph
Rainfall: 48.3 mm.
Fumarola of weak degassing white color at a height of 4,400 msnm that is dispersed towards the west and southwest, have been observed . 3 to 5 weak and moderate explosions per hour that expel columns of ash gray at a height of 4,400-4,600 msnm (13,125 -15,090 feet), which are dispersed from 6 to 8 km to the west and southwest . These were accompanied by weak and moderate rumbles with weak shock waves causing vibration in the roofs of houses near the volcano. We perceive weak and moderate sounds similar to locomotive train with lapses of 6 to 13 minutes, product of the explosions originated of fall of fine ash particles in areas of Panimache I, Morelia, Santa Sofia, Finca Palo Verde, Panimache II, Sangre de Cristo and others. In the evening hours incandescent pulses with an approximate height of between 100 and 150 meters above the crater, giving weak and moderate avalanches in the contour of the crater.
Source : Insivumeh
Photo :Adrian Rohnfelder