July 16 , 2016. EN. Ticsani , Santiaguito , Pavlof, Kilauea .

Home / Alaska / July 16 , 2016. EN. Ticsani , Santiaguito , Pavlof, Kilauea .

July 16 , 2016. EN. Ticsani , Santiaguito , Pavlof, Kilauea .

July 16 , 2016.


Ticsani , Peru :

Monitoring: volcanic earthquakes .

Earthquakes volcano -tectonics (VT), related to the breaking of rocks, near the Ticsani (less than 6 km from the crater), continue to be observed, but fell, with in the last two weeks of July , an average rate of 33 VT / day (report No. 07-2016; 42VT / day).
The occurrence of earthquakes volcano tectonic Distals (EDV) show an increase this past week, with an average of 82 VTD / day, higher than the previous period (Report No. 07-2016; 51VT / day). This type of seismic activity may be related to local tectonics.
Over the past three months, the hybrid type of tremor events occur sporadically. During this period, the appearance of an unique hybrid event was observed, while a small tremor was also recorded.


Afficher l'image d'origine

Location of events.

During this period, a total of 360 earthquakes related to the breaking of rocks have been located, reaching a maximum of M 3.8  (local magnitude). The distribution of epicenters and depth of earthquakes shows three groups: the first group is close to the volcano (VTS near the dome) and extends to the east, at depths ranging between 4 km and 9 km under the Ticsani. The second group is at a distance of 7 km east of the volcano, spread between 3 km and 7 km deep. Finally, a third group was observed at 13 km south-east of the volcano, distributed between 3 km and 14 km deep under the surface.

The biggest event of M 3.8  , was recorded on July 11 at 17:01 hours (local time).
This earthquake was located 14 km southeast of Ticsani volcano, in the third group.



Satellite surveillance.

SO2 anomalies: The GSDM NASAsatellite system « EOS Aura » (Http://so2.gsfc.nasa.gov/) recorded low levels of SO2 gas density in this period.
Thermal anomalies: The Mirova system (of www.mirovaweb.it) not detected thermal anomalies on the Ticsani volcano (VPR = 0 Mega Watts).


Source : IGP

Photos : Igp


Santiaguito , Guatemala :

Yesterday, a new explosion of the dome Caliente  is reported, ejecting a plume of ash 4,900 meters (16,076pies), moving towards the northeast of the volcanic complex.
The ash columns, following the wind direction, have moved to Loma Linda, San Marcos Palajunoj and nearby villages on the  Northeast flank.
However, it is possible that they move further.
This ash can be transported to the city of Quetzaltenango, with the probability of ash fall in the coming hours because of the variability of the wind.


Therefore, The INSIVUMEH recommends:
At CONRED, noting that the activity of the Santiaguito volcano remains at a high level with the possibility of similar or stronger explosions, so it is necessary to take precautions deemed necessary and maintain proper vigilance.
The Ministry of Health, noted that Loma Linda and San Marcos Palajujoj villages are the most affected by ash falls,  constants , that can cause respiratory problems, stomach problems and affect the view of the people .
To take precautions with air traffic, as there is ash in the atmosphere at a distance of 30 kilometers to the west, south, south-west of the volcanic perimeter at an altitude of 4,900m (of 16,076pies ) with the possibility that they move further.
Also note that during the day, it is possible to have changes in the wind direction.

Source : Insivumeh

Photo : Guido Velasquez Enriquez



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 continued at Pavlof Volcano over this past week. On Monday morning, weakly elevated surface temperatures were observed at the summit of the volcano in satellite imagery and a steam and gas cloud was observed extending southwest from the summit for approximately 50 mi (80 km). Beginning around 1:00 PM AKDT (21:00 UTC) the same day, web camera images showed minor ash emissions reaching at most a few hundred feet above the summit vent (8,500 feet or 2.6 km above sea level) and extending a few miles to the southwest.



Emissions declined in webcam images by about 9:00 PM AKDT (06:01 UTC July 12) the same day. No unusual activity has been seen in web camera or satellite imagery since that time. There was no detected seismicity associated with this low-level activity.

Pavlof last erupted in mid-May 2016, and prior to that in late March 2016. Pauses in activity of days to weeks are common during eruptive episodes of Pavlof Volcano. A return to eruptive activity remains possible and could occur with little or no warning. AVO will continue to monitor the volcano closely and will issue additional information as necessary.

Source : Avo

Image  : Archives AVO



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 61G lava flow extending southeast of Pu’u ‘O’o remains active. The flow does not pose a threat to nearby communities. The lava lake at Halema’uma’u Crater continues to circulate and spatter. Minor inflationary tilt has been recorded at the volcano summit over the past day. There has been no significant change in seismicity across the volcano.



Death of an Ohia tree, in sequence….A majestic Ohia tree standing among many, in the distance the crackling sound of a slow moving lava flow, it’s only a matter of time before the inevitable occurs, the heat, the magma,the singe,the burn,then the fall from gracefully standing tall, to the demise,lying there hopelessly engulfed in flames, in the end, a hole in the ground, the only remnant of what once stood tall and proud…the death of an Ohia tree…..

Summit Observations:
Tiltmeters at the summit of Kilauea recorded minor inflationary tilt over the past day. Yesterday morning, the lava lake at Halema’uma’u was 27.5 meters (90 feet) below the floor of Halema’uma’u. Based on web camera imagery, it appears to have fluctuated little over the past 24 hours. Minor fluctuations in seismic tremor related to variations in the vigor of lava lake circulation and spattering continue. Sulfur dioxide emissions from the summit vent over the past week ranged from 3,900 to 7,300 metric tons/day.



Pu’u ‘O’o Observations:
HVO webcams show several persistent incandescent vents on the floor of Pu’u ‘O’o crater. There were no significant changes in seismic activity. A tiltmeter on the north flank of Pu’u ‘O’o has recorded inflationary tilt over the past 24 hours. The sulfur dioxide emission rate from all East Rift Zone vents on July 12 was about 320 metric tons/day.



Gases precluded us from viewing the lava pond, but the skylight high on northeast rim still provided a great view of the rivers of lava feeding 61g.

Lava Flow Observations:
The 61G lava flow, southeast of Pu’u ‘O’o remains active on the coastal plain on Kilauea’s south flank. Based on a satellite image from July 13, the flow front was about 900 m or about 1/2 mile from the ocean. Bright incandescence remains visible in overnight webcam views of the active lava flow field, marking lava tube skylights and areas of active breakouts on the pali and along the flow as it extends towards the coast.

Source : HVO

Photos : Kawita Singson , Bruce Omori


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