December 05 , 2016. EN. Kilauea , Cerro Machin , Popocatepetl , Pavlof .

Home / Alaska / December 05 , 2016. EN. Kilauea , Cerro Machin , Popocatepetl , Pavlof .

December 05 , 2016. EN. Kilauea , Cerro Machin , Popocatepetl , Pavlof .

December 05 , 2016.


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:
Eruptions continue at Kilauea Volcano’s summit and East Rift Zone. The episode 61g lava flow in the East Rift Zone continues to enter the ocean at Kamokuna. In addition, breakouts from the episode 61g vent on the east flank of Pu’u ‘O’o were active over the last day and advancing slowly east, but appear to have waned. These lava flows pose no threat to nearby communities at this time. The lava lake at Kilauea’s summit continues to circulate, with periods of spattering occurring sporadically. There has been a net drop in lake level. Seismic activity continues at a low rate and deflationary tilt is ongoing.


Summit Observations:
Over the past week, the average daily sulfur dioxide emission rate at the summit has ranged from about 2,300 to 5,000 metric tons/day. The summit continues to deflate, but at a slowing rate, and has lost about 5 microradians since deflation started 3 days ago. Summit seismic activity remains low. The summit lava lake level and the amplitude of summit seismic tremor fluctuated as spattering in the lake waxed and waned, but overall there was a net drop in level in tandem with summit deflation.


Pu’u ‘O’o Observations:
There were no obvious changes at Pu’u ‘O’o. Webcam views show persistent glow from sources within the crater and from a vent high on the northeast flank of the cone. A tiltmeter on the northwest flank of the cone showed net deflationary tilt, possibly related to ongoing summit deflation, but the signal is also strongly overprinted by rainfall effects. The sulfur dioxide emission rate from all East Rift Zone vents was about 340 metric tons/day when last measured on November 30. Seismicity in the Pu’u ‘O’o area continues at low levels.


Lava Flow Observations:
The recent breakouts from the episode 61g vent on the east flank of Pu’u ‘O’o are still active, but their vigor appears to have decreased. This argues that the deflation recorded at Pu’u ‘O’o is caused by depressurization of the magmatic storage system beneath the cone. Lava also continued to travel through the main (original) branch of the episode 61g flow and enter the ocean at Kamokuna, where activity has been concentrated on the east side of the delta.

Source : HVO

Photo : David Ford


Cerro Machin , Colombia :

Weekly bulletin of activity of the volcano Cerro Machin, from 22 November to 28 November 2016

The level of activity continues at the level of  activity yellow or (III): changes in the behavior of volcanic activity.

As regards the monitoring of the activity of the Cerro Machin volcano, the Colombian Geological Service reports that:

Seismic activity related to the fracturing of volcanic rock under the volcano showed an increase in the number of earthquakes and seismic energy released compared to the previous week. The recorded earthquakes were located to the west of the main dome and to the southeast of this area.



The depth of the events was between 2.0 and 9.6 km. The highest earthquake of energy was recorded on November 24 at 09:15 (local time), with a magnitude of 1.7 ML (local magnitude), located under the main dome of the South-West sector, at depth of 5.2 km. The appearance of a seismic increase recorded on November 25, under the main dome, with depths varying between 2.6 and 4.0 km is highlighted. The highest magnitude of the earthquake recorded during this increase occurred at 04:16 (local time), with a magnitude of 1.6 ML (local magnitude) at a depth of 4.0 km. The other parameters monitored show no significant change.

The COLOMBIAN Geological Survey closely monitors the evolution of the volcanic phenomenon and will continue to report in a timely manner on any changes that may occur.


Source : SGC

Photo : Ingeominas


Popocatepetl , Mexico :

4 December 11:05 am (17:05 GMT December 04)

Over the last 24 hours, through the seismic recordings of the Popocatepetl Volcano monitoring system, 71 low-intensity exhalations accompanied by steam and gas have been identified. In addition, 27 minutes of harmonic tremors of low amplitude were recorded.



For the greater part of the time there was good visibility, and it was possible to observe the incandescence and the emission of water vapor and gas in variable quantities.
CENAPRED recommends not to approach the volcano and in particular the crater.

The volcanic alert semaphore of Popocatepetl Volcano is located in Amarillo Phase 2.

Source : Cenapred .

Photo : Julian Abed / webcamdemexico


Pavlof , Alaska :

55°25’2″ N 161°53’37 » W,
Summit Elevation 8261 ft (2518 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW



Unrest continues at Pavlof Volcano. Nothing significant was observed in mostly cloudy satellite images over the past 24 hours. Web camera views were obscured by ice and snow on the camera housing. No activity was detected in seismic or pressure sensor data during the past day.

The degree of unrest at Pavlof can change quickly. A return to eruptive activity can occur with with little or no warning. AVO is closely monitoring the volcano.

Source : AVO

Photo : Archive AVO

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