June 14 , 2016. EN. Kilauea , Nevado Santa Isabel , Bulusan , Sinabung .

Home / blog georges Vitton / June 14 , 2016. EN. Kilauea , Nevado Santa Isabel , Bulusan , Sinabung .

June 14 , 2016. EN. Kilauea , Nevado Santa Isabel , Bulusan , Sinabung .

June 14 , 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

kilauea

Activity Summary:
Eruptions continue at Kilauea Volcano’s summit and East Rift Zone. The summit lava lake remains relatively high, its level fluctuating slightly with changes in summit tilt and spattering. Lava continues to advance southeast from Pu’u’O’o and currently poses no threat to nearby communities. The flow was 3.3 km (2.1 mi) long on June 10. The June 27th lava flow northeast of Pu’u’O’o is no longer active.

kilauea
View of breakout on northeast flank of Pu’u’O’o. The light-colored flows in the foreground are active pāhoehoe flows. The view is to the southeast. Pu’u’O’o is at upper right.


Summit Observations:
The inflationary phase of the latest DI event continues this morning, having started very early on June 10. The broader deformation trend recorded by summit tiltmeters since late May has been one of gradual inflationary tilt. The summit lava lake is roughly 30 m (~100 ft) below the adjacent floor of Halema’uma’u, based on estimates from webcam images. Rates of seismicity across the volcano are at background levels, with episodes of summit tremor associated with spattering within the summit lava lake. Sulfur dioxide emissions from the summit vent over the past week ranged from 4,200 to 5,400 metric tons/day during good trade wind conditions. Data from GPS networks and InSAR (satellite radar) show continued long-term inflation of the summit and upper Southwest Rift Zone magma reservoirs.

kilauea

Pu’u’O’o Observations:
The gradual deflationary tilt recorded by the tiltmeter at Pu’u’O’o is no longer discernible – the daily tilt variations caused by volcanic and environmental factors obscure the broader trend. No crater floor subsidence since yesterday can be identified in webcam images. If subsidence is still occurring, then it is happening at a rate too slow to be perceptible over the duration of a single day. Vents on Pu’u’O’o‘s crater floor and upper northeast flank remain incandescence, and bright glow overnight from the pit just west of the crater (West pit) indicates that it still contains a small lava pond. Seismicity is at background levels, and the sulfur dioxide emission rate from all East Rift Zone vents was about 290 metric tons/day when last measured on June 9.

kilauea

Lava Flow Observations:
Webcam views show that the lava flow from the vent on the east flank of Pu’u’O’o remains active and continues to advance southeast. Bright incandescence was visible to the webcams overnight from several skylights along the upper part of the flow’s nascent lava tube. The lava flow was 3.3 km (2.1 mi) long when mapped on June 10, and at that time was advancing at an average rate of about 250 m/day (~275 yd/day). The June 27th flow is no longer active.

Source : HVO

Photos : HVO , Bruce Omori.

 

 

Nevado Santa Isabel , Colombia :

Bulletin Special activity of Nevado Santa Isabel volcano, June 13, 2016
Subject: Green Level of activity or (IV) is maintained: Changes in the behavior of volcanic activity.

Regarding the monitoring of the activity of the Nevado Santa Isabel volcano, the Geologico Servicio Colombiano reports:

On June 13, 2016 at 2:52 (local time), a volcano-tectonic earthquake, combined with the fracturing of rocks within the volcano, with a magnitude of 3.3 ML (local magnitude), located to the east of the volcanic edifice was recorded at a depth of 4.6 km. This event was reported as felt by the inhabitants of the volcano area of influence.

 

Nevado Santa Isabel

The location obtained

Latitude: 48.02 ‘N
Length: 75˚ 21.44 ‘W
Depth: 4.64 km
Magnitude: 3.3 ML

It is recommended that the community continues to monitor changes occurring on the volcano.

The Colombian Geological Survey follows closely the evolution of the volcanic phenomenon and will continue to report timely to the changes that may occur.

 

Source : SGC.

Photo : mountain-forecast.com

 

Bulusan , Philippines :

Sorsogon on alert vs Bulusan activities.

14 JUNE 2016. The Province of Sorsogon is on continuous alert as a result of the renewed activities of the Bulusan Volcano. Engineeer Raden Dimaano, Provincial Disaster Risk Reduction and Management Council action officer, clarified, however, that there are no affected barangays within the four-kilometer permanent danger zone of the volcano.
Dimaano said the affected villages are in the towns of Casiguran and Juban. He said the PDRRMC has not enforced a pre-emptive evacuation in the affected areas as a result of the phreatic explosion of the volcano on Friday.
The PDRRMC head said such activities being shown by Bulusan Volcano are but normal to the residents. The volcano last erupted on Feb. 22. Dimaano, however, claimed that the PGS and concerned agencies are ready if the stem-driven eruption will re-occur.

Bulusan

He said the Philippine Institute of Volcanology and Seismology (Phivolcs) Sorsogon Observatory headed by Crispolo Deolata has gathered ash samples to be sent to the Phivolcs central office for examination.
Phivocs resident volcanologist Eduardo Laguerta said the move is to determine if there are changes in the chemical composition of the ash that came out in the last eruption of the volcano compared to its previous eruptions.
Laguerta said there is no cause for alarm as this is a normal activity of the volcano due to the boiling of the steam in its chamber.

bulusan

Based on the past activities of the volcano, he said, it will become quiet anew after the recent eruption. The Phivolcs official said that before the recent phreatic explosion, the Phivolcs had registered 113 volcanic quakes.
While they are still waiting from the result of the examination of the Phivolcs central office on the ash samples, they will look into other barometers that can be used as bases if the volcano again erupts, like the ground deformation or inflation as a result of the melting of rocks inside the volcano.

There is also the steam or sulfur dioxide emission and the presence of earthquakes that are normally felt by the residents but are registered by Phivolcs instruments like the seismograph.

Source :   MANILA BULLETIN

 

Sinabung , Indonesia :

Activity report of the Sinabung volcano.
June 14, 2016, 7:29 p.m.. An eruption occurred with a high column of ash 1,000 meters.

The wind moves slowly eastward. Amplitude; 40 mm, Lg: 103 sec.
Visual: The weather is sunny, cloudy, calm wind, air temperature 17-18 ° C, the haze of the volcano disappears ; a thin white smoke 20 meters high is observed.

 

sinabung

There were two avalanches with hot clouds over a distance of 2,000 meters in sliding towards the Southeast. It was observed the glowing lava up to 1,000-1,200 meters to the eastsoutheast.
Seismicity:
12 avalanches Amplitude: 3-85 mm, Lg: 30-234 seconds.
1 earthquake LF Amplitude: 5mm, Lg: 10 seconds.
1 earthquake hybrid, amplitude: 8 mm, Lg: 10 seconds.

Conclusion: The Sinabung volcano is at the level of activity : AWAS / ATTENTION
Recommendation: The community and visitors / tourists should not perform activities in a radius of 3 km from the summit, and  7 km in the southeast sector, less than 6 km in the South-East sector and less than 4 km in the North Northeast sector. And people who live near rivers that discharge from Mount Sinabung must stay in alert to the threat of lahars.

Source : Pvmbg

Photo : Tibta Pangin

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