March 11 , 2017. EN. Kilauea , Fuego , Nevado Del Huilà , Sabancaya .

Home / blog georges Vitton / March 11 , 2017. EN. Kilauea , Fuego , Nevado Del Huilà , Sabancaya .

March 11 , 2017. EN. Kilauea , Fuego , Nevado Del Huilà , Sabancaya .

March 11 , 2017.


Kilauea , Hawai :

19°25’16 » N 155°17’13 » W,
Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Activity Summary:
Kīlauea Volcano continues to erupt at its summit and at the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow from Puʻu ʻŌʻō is entering the ocean at Kamokuna and is feeding surface flows on and above the pali. These lava flows pose no threat to nearby communities at this time. The summit inflationary trend that started two days ago stopped yesterday in early evening. The lava lake level rose 4 m (13 ft) over the past day to about 23 m (75 ft) below the Overlook crater rim as of this morning. Seismicity at Kīlauea did not change significantly in the past day.


Summit Observations:
Tiltmeters at Kīlauea’s summit recorded inflationary tilt yesterday until early evening, then recorded no change in tilt through this morning. The lava lake was measured this morning at about 23 m (75 ft) below the Overlook crater. Webcam views of the lava lake can be found at this webpage: Summit tremor continues to fluctuate in response to variations in lava lake spattering. Average daily summit sulfur dioxide emission rates were between about 6,600 and 1,900 metric tons/day during the last week in February, the most recent time when conditions permitted measurements. Seismicity in the upper East Rift Zone has returned to typical levels over the past few days, with just a few small earthquakes.

Puʻu ʻŌʻō Observations:
Webcam images over the past 24 hours show persistent glow at long-term sources at Puʻu ʻŌʻō, including the pit on the west side of the crater that holds a small lava pond. There was no significant change in East Rift Zone seismicity over the past 24 hours. The tiltmeter at Puʻu ʻŌʻō recorded a small inflationary tilt during the past day. The sulfur dioxide emission rate from all East Rift Zone vents was about 250 metric tons/day when last measured on February 22, 2017.

Lava Flow Observations:
The episode 61g flow is still active and entering the ocean at Kamokuna. Webcam views indicate continued small breakouts on and above the pali. None of these flows pose a threat to nearby communities at this time.


Source : HVO

Photos : Bruce Omori .

Fuego , Guatemala :




The Fuego volcano in the last hours showed an increase in the energy of the explosions, as observed in the seismic record obtained by the station FG3. The volcano observatory reports an average of 6 explosions per hour, of which 4 are moderate and 2 are strong. These generate plumes of ash that reach a height of about 4,800 to 6,500 meters (15,748 to 21,325 feet) and travel in two directions: the first to more than 10 kilometers to the west and southwest, the second 5 kilometers to the east.


Products of explosive activity, ash falls have been reported in the communities of Panimaché I and II, Morelia, Hagia Sophia, Villa Palo Verde, Sangre de Cristo, San Pedro Yepocapa and possibly others at a greater distance in This direction. Falls of volcanic materials of different sizes are reported, reaching distances greater than 300 meters from the crater.


According to observations of the seismic activity, the energy of the explosions is maintained, with the possibility that in the next hours a new strombolian eruptive phase will develop.

Source : Insivumeh.

Photo : Eduardo Montepeque


Nevado Del Huilà , Colombia :

Subject: Nevado del Huila  volcanic activity weekly report

The level of activity of the volcano continues:
At activity level Yellow or (III): changes in the behavior of volcanic activity.

Analysis and evaluation of the information obtained by the monitoring network of the Nevado del Huila volcano, during the week between 1 and 7 March 2017, the Colombian Geological Survey – Popayan Volcanological and Seismological Observatory reports:

During the period evaluated, 306 seismic events, of which 183 were related to rock fracturing processes (VT type) and 123 with fluid dynamics in the volcanic ducts were recorded. Of these, 119 were classified as long-term (LP-type) events and four (4) as low-energy (TR) volcanic tremor pulses.


In the images obtained during the week through the webcams of Tafxnú, Maravillas, Caloto and La Palma, degassing of the volcanic system was observed. The column of gas observed was characterized as white and was preferably directed towards the west of the volcanic edifice.
The sensors for monitoring the deformation of the ground, magnetic fields and infrasonic waves have remained unchanged.
Therefore, it is concluded that during the evaluation period of the volcano, the volcano continued to exhibit stable behavior.
The Colombian Geological Service continues to be attentive and will report in a timely manner on any changes that may occur.

Source : Sernageomin


Sabancaya , Peru :

Explosive volcanic activity remained similar to the previous week. Significant seismic activity associated with the movement and / or rise of magma (hybrid earthquakes, long period) is observed, which is reflected in the occurrence of explosions (44 explosions per day on average, with a maximum of DRC Of 65 cm2).
• Eruptive ash and gas columns reached ~ 3000 meters above the crater and then spread over 40 km to the south and northwest.

• The deformation did not show any significant significant change. The minimum variations recorded are within the margin of error of the equipment.
The flow of volcanic gas (SO2) reached a maximum of 6000 tons / day on 28 February.
3 thermal anomalies were detected, with values between 3 MW and 17 MW of GRP (volcanic radiated power).

In general, volcanic activity remains similar to last week.

Source : IGP

Photo : Archive Ingemmet

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