January 08 , 2017. EN. Kilauea , Pacaya , Turrialba , Colima .

Home / blog georges Vitton / January 08 , 2017. EN. Kilauea , Pacaya , Turrialba , Colima .

January 08 , 2017. EN. Kilauea , Pacaya , Turrialba , Colima .

January 08 , 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:
Kilauea Volcano continues to erupt in Halema’uma’u Crater at its summit and from the Pu’u ‘O’o vent in its East Rift Zone. Lava continues to enter the ocean at Kamokuna, fed via the 61g lava flow from Pu’u ‘O’o. Active breakouts of lava continue in the upper sections of the 61g flow field. The active lava flows pose no threat to nearby communities at this time. Deflationary tilt continues at both the summit and at Pu’u ‘O’o. The surface of the lava lake in Halema’uma’u has dropped slightly from yesterday’s measured level of 34m (110ft) below the floor of Halema’uma’u Crater.


Summit Observations:
Tiltmeters at Kilauea’s summit continue to record deflationary tilt. Webcam images reveal a slight drop in depth to the lava lake surface from Friday’s measured level of 33.5m (110ft) below the rim of the Overlook Vent within Halema’uma’u Crater. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php.

Seismicity continues at low rates with tremor amplitude fluctuations associated with lava lake surface circulation and spattering. Summit sulfur dioxide emissions persist, though challenging measurement conditions this week have compromised daily estimates of summit sulfur dioxide emission rates derived from instrumental array volcanic gas monitoring.








Pu’u ‘O’o Observations:
Pu’u ‘O’o tiltmeters continue to register deflationary tilt that appears to be occurring in conjunction with ongoing Kilauea summit tilt. Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a vent high on the northeast flank of the cone. There were no significant changes in seismicity over the past 24 hours. The sulfur dioxide emission rate from all East Rift Zone vents was about 270 metric tons/day when measured late last month.











Before (Nov 3, 2016) and after (Jan 5, 2017): The 25 acre Kamokuna delta collapsed into the sea on New Year’s Eve, taking another 4 acres of land with it, leaving a bite-like bay behind (to the right of the plume in the lower photo). Also, the little puffs of white gas at the existing cliff’s edge in the before shot is where the tube severed, creating a firehose situation for a short time after.

Lava Flow Observations:
The episode 61g flow is still active and entering the ocean at Kamokuna. Active surface lava flows persist near Pu’u ‘O’o. The episode 61g flow poses no threat to nearby communities at this time. Nearly the entire lava delta at Kamokuna collapsed into the ocean on December 31. Also, a large section of the older sea cliff east of the lava delta collapsed into the sea. The collapsed part of the sea cliff extended about 180m (590ft) east of the delta edge, and cut inland about 70m (230ft) from the shoreline.

Source : HVO

Photos : Bruce Omori , David Ford , Bruce Omori.


Pacaya , Guatemala :

Activity type: strombolian.
Morphology: composite stratovolcan
Geographical location: 14 ° 22’50˝ Latitude N; 90 ° 36’00˝ Longitude W.
Height: 2,552msnm.
Weather conditions: Partly Cloudy
Wind: North 5 km / h
Precipitation: 0.0 mm.


Persistence of an abundant white degassing activity which rises to a height of about 300 m above the crater, which is dispersed towards the south. The PCG seismic station shows the internal tremor which is the product of the ascent of Magma and gases to the surface. No explosions or rumblings were heard during the night and early in the morning, reflections of incandescence in the crater.

Source : Insivumeh

Photo : JACB


Turrialba , Costa Rica :

Activity report of the Turrialba volcano:
7 January 2017

From 5 pm on Friday 6 to 5 pm on Saturday 7 January the Turrialba volcano showed an abundant constant ash emission activity. The columns varied in height from 500 to 1500 meters (as seen in the morning and due to changes in the direction of the wind at the top of the volcano), with wind speeds between 25 and 45 km / h The IMN station, heading west and southwest. In the afternoon clouds covered prevented direct observation of the emission characteristics by the volcanic surveillance cameras above the Turrialba volcano.

The ash emanations remained throughout the period mentioned and remain until the end of this report. The volcanic tremor continued with a mean amplitude and several peaks coincided with the emanations of dark columns, charged with ashes. In the morning, a large drop of particles in most of the eastern half of the central valley was observed; Some affected communities are: Coronado, Tibás, Heredia, Alajuela and most of the communities located between the volcano and the last two cities mentioned. For the south-west side they are also reported in: Alajuelita, Santa Ana and Ciudad Colon.


L’image contient peut-être : 1 personne, ciel, nuage, montagne, plein air et nature

According to the AERMOD, Atmospheric Chemistry Laboratory (LAQAT-A) model of the School of Chemistry, as well as the meteorological values of mean hours (temperature, radiation, wind speed and direction, relative humidity, Etc.), reported by the National Institute of Meteorology (IMN) and the topography of Costa Rica, it is estimated that the dispersion (up to 50 km around the volcano) of the gases emitted by the Turrialba volcano, from 10 hours -13 hours (local time), will have a direction towards the Southwest-West-North-West. Then the emissions will affect areas such as: Coronado, Guadalupe, Ipis, Moravia, Tibás, Desamparados, Alajuelita, Patarra, Aserri, San Jose, Pavas, Zapote, Curridabat, Tres Rios, San Pedro, Sabanilla, Escazu Ana, Heredia, San Isidro, Santo Domingo, San Rafael, Santa Barbara, Barva, Heredia, Carrizal, Poas, National Park Braille Carrillo, Cartago, Paraiso, Cot, Tierra Blanca, , Villa Silvia, Finca San Bosco, Villa Lara, Villa Echandi, Villa Volio, among other places nearby.

OVSICORI-A maintains a constant monitoring of the evolution of this process through a geophysical monitoring network around the Turrialba volcano.


Source : Ovsicori .


Colima , Mexico :

Colima. A civil protection unit of the State (UEPC) reported that the explosion recorded this afternoon (07/01) on the volcano Colima recorded slightly higher values, moderate to strong.

In his Twitter account, @PC_Colima, said the agency’s activity remains within the parameters recorded over the past few months, so its follow-up will continue. Meanwhile, in a telephone interview, the Director General of the UEPC, Melchor Ursua Quiroz, said: « It was a strong explosion that was heard in this city, many are manifested, no care, we lack to see Where the ashes will fall, this will most likely go to the airport.  »



He said that a few minutes after the explosion, recorded at around 4:02 pm, civil protection personnel went to La Becerrera and La Yerbabuena, the municipality of Comala communities closest to the Fuego volcano to assess the situation and prevent Of falls of ashes in the municipality of Cuauhtémoc.
« There are people there, it seems that there was no problem, no communication at the moment because the signal was cut, but there is no need to evacuate or something like that « Said Ursúa Quiroz.


He said they are also trying to communicate with scientists in order to have more information on volcanic behavior, « but as the teams are half complete, it is also a problem, to see if there is Already some things to correct « .

The head of Civil Protection recalled that « Always on alert, we look at La Yerbabuena, we expect data, but access is limited to this community. »
For his part, Governor Jose Ignacio Sanchez Peralta urged people to remain attentive to the official declarations of civil protection.


Source : jornada.unam.mx

Photos : Hernando Rivera, Cuartoscuro .

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