July 03 , 2017. EN . Dieng , Bogoslof , Dukono , Sheveluch , Santiaguito .

Home / Alaska / July 03 , 2017. EN . Dieng , Bogoslof , Dukono , Sheveluch , Santiaguito .

July 03 , 2017. EN . Dieng , Bogoslof , Dukono , Sheveluch , Santiaguito .

July 03 , 2017.


 Dieng , Indonésia :

Chronology of the phreatic eruption of the Sileri crater, Dieng Plateau, 2 July 2017

  1. Last month’s visual observations:

During the month of June 2017, the weather was sunny / overcast, rain was present 12 times with a moderate drizzle, with precipitation up to 57 mm. This month, rainfall decreased slightly compared to the previous month. The rain that fell was accompanied by strong winds. The wind was blowing from strong to weak from the south, east, west and north. Morning temperatures were 11 ° C and 25 ° C during the day.
The 1st and 2nd of July 2017 the weather was sunny / cloudy. The wind blew weakly towards the north and north-east. The temperature of the air was 11 ° to 19 ° C, a thick white smoke rose 40 m above the crater.


2. Seismicity last month:
During the month of June 2017, the seismograph recorded 78 earthquakes with the following details:

– Tectonic earthquakes: 5 times in a row (not felt)
– Earthquakes Tectonic local: 69 times (2 feelings M1 / ​​M4)
– Deep volcanic earthquakes: 4 times (VA)

On June 30, 2017, 37 local Tectonic earthquakes were recorded, with a seismic amplitude of 3 to 68 mm, the longest earthquakes: from 3.6 to 11.4 seconds.
On 1/2 July 2017 (until 11:30 am) there was no recorded earthquake.


Although the level of activity of G. Dieng remains at NORMAL, it is recommended that the following

The community should not be active around the Sileri crater, because of the danger of CO2 and H2S gas that are harmful to life.
The public should be vigilant when excavating the soil around the Sileri Crater at a depth of more than 1 meter because of the potential danger of CO2 and H2S gas.
The public must remain calm, not cause problems related to the activity of G. Dieng. The Center for Volcanology and Mitigation of Geological Hazards coordinates its activities with the provincial government and the Regency of Banjarnegara, Central Java, Wonosobo and Batang on the activities of G. Dieng. People should always follow the guidelines of SATLAK PB and the Disaster Management Agency (BPBD) Java Central Province.
For tourists visiting the area, it is advisable not to come too close to the crater.
As part of the increase in volcanic activity in the Sileri Crater, the public and visitors should increase vigilance and not approach the Sileri Crater within 100 meters of the crater edge.


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

JAKARTA.  A helicopter from the National Search and Rescue Agency (Basarnas) crashed while on the way to help evacuate people near a volcano that erupted Sunday near Candiroto village in Central Java province’s Temanggung district..

Villagers living around the area say at least two people were killed in the crash. The helicopter was carrying four crewmen and four rescuers.

Villagers told that they found the bodies of two people who died in the crash. The Dauphin chopper is in total destruction after hitting a cliff in Canggal Candiroto Village, Temanggung at around 04.00 p.m.

The chopper which was previously assigned to observe the traffic jam during the exodus flow of Lebaran was heading to Dieng to help evacuation efforts on the Sileri crater at the tourist resort Dieng Plateau, Kepakisan Village, Banjarnegara District.

Earlier in the day, the explosion at the crater spouted gas as high as 50 meters into the air, reaching as far as the waterboom parking lot. The explosion from a volcano in Banjarnegara district spewed cold lava, mud and ash injuring 10 people.




Bogoslof , Alaska :

AVO/USGS Volcanic Activity Notice

Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Issued: Sunday, July 2, 2017, 1:19 PM
Source: Alaska Volcano Observatory
Location: N 53 deg 55 min W 168 deg 2 min
Elevation: 492 ft (150 m)
Area: Aleutians

Volcanic Activity Summary:
An eruption began at Bogoslof volcano at 20:48 UTC on July 02 (12:48 AKDT on July 2). Eruption seismicity had declined by 21:04 UTC (13:04 AKDT). No ash cloud has been detected as of yet in satellite data, but volcanic ash emissions likely occurred based on infrasound data. Winds are towards the east.
The Aviation Color Code remains at ORANGE and the Volcano Alert Level remains at WATCH at present. AVO is evaluating all data sources and will update this report as more information becomes available.

Recent Observations:
[Volcanic cloud height] None detected yet. NWS eruption SIGMET issued.
[Other volcanic cloud information] Winds towards east
[Lava flow/dome] N/A
[Lava flow] N/A

The National Weather Service Alaska Aviation Weather Unit has issued an eruption SIGMET warning for aviation.



Issued: Sunday, July 2, 2017, 1:47 PM

Volcanic Activity Summary:
A significant explosive eruption occurred at 20:48 UTC July 2 (12:48 AKDT July 2). AVO is raising the Aviation Color Code to RED and Alert level to WARNING for Bogoslof volcano.
Satellite data and pilot reports shows a volcanic cloud with an estimated altitude of 36,000 ft asl moving towards the east. Seismic and infrasound data suggest that the ash emissions are no longer continuing.

Recent Observations:
[Volcanic cloud height] 36,000 ft asl estimated by satellite and pilot report
[Other volcanic cloud information] Cloud moving towards east

Hazard Analysis:
[Ashfall] Trace of ash fallout in Unalaska possible

No further ash emissions have occurred at Bogoslof Volcano since the explosion today, July 2, at 12:48 AKDT (20:48 UTC), and seismicity remains low. The eruption lasted about 16 minutes, was detected in seismic and infrasound data, and produced a cloud up to 36,000 ft asl that was carried easterly over northern Unalaska. Observers in Dutch Harbor report no noticeable ash fall from today’s eruption. The National Weather Service issued a SIGMET that remains in effect.


Source : AVO


Dukono , Indonésia :

Mount Dukono Erupts; Galela Airport on Alert .

2 JULY 2017. Gamarmalamo Galela airport authority in North Halmahera was ordered to be cautious on Mount Dukono increasing activity Mt Dukomo observer Sarjan Roboke said tha up to this point Mt Dukomo keeps spewing thick volcanic ashes 300 to 800 meters high. Mount Dukono has even erupted 54 times with the amplitude of 4-34 milimeters with the duration of 20.32-64.55 seconds.



« Far tectonic earthquakes hit five times with the amplitude of 7-27 millimeters and tremor earthquakes with the amplitude of 0.5-26 millimetersconstantly occur, » Sarjan said on Saturday (1/7). He added that rumbling sound with weak intensity was identified around Mt Dukono.

Sarjan believes that, despite the increasing activity, Mt Dukono is still considered safe for residents around the area. Nevertheless, local residents are prohibited from going near the crater up to a 2-kilometer radius. They are also required to wear masks.

« The status of Mt Dukono is still on Level II which means on alert, » Sarjan added.

Source : TEMPO


Sheveluch , Kamchatka :


Issued: 2017 , July 02 .
Current Aviation Color Code: ORANGE
Previous Aviation Color Code: orange
Source: KVERT
Notice Number: 2017-154
Volcano Location: N 56 deg 38 min E 161 deg 18 min
Area: Kamchatka, Russia
Summit Elevation: 10768.24 ft (3283 m), the dome elevation ~8200 ft (2500 m)



Volcanic Activity Summary:
Satellite data showed two ash clouds from eruption on 12:53 UTC: first about 360 km to the south-west, and second about 158 km to the south-east from the volcano.
Explosive-extrusive eruption of the volcano continues. Ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.

Volcanic cloud height:

First ash plume : 16400-19680 ft (5000-6000 m) AMSL
Time and method of ash plume/cloud height determination: 20170702/1739Z – NOAA 19 (4m5)
Second ash plume :13120-16400 ft (4000-5000 m) a.s.l.
Time and method of ash plume/cloud height determination: 20170702/1739Z – NOAA 19 (4m5)



Other volcanic cloud information:

First ash plume
Distance of ash plume/cloud of the volcano: 224 mi (360 km)
Direction of drift of ash plume/cloud of the volcano: SW / azimuth 230 deg
Time and method of ash plume/cloud determination: 20170702/1739Z – NOAA 19 (4m5)
Start time of explosion and how determined: 20170702/1253Z – Video data
Duration of explosion: ~ 30 minutes

Second ash plume
Distance of ash plume/cloud of the volcano: 98 mi (158 km)
Direction of drift of ash plume/cloud of the volcano: SE / azimuth 134 deg
Time and method of ash plume/cloud determination: 20170702/1739Z – NOAA 19 (4m5)
Start time of explosion and how determined: 20170702/1253Z – Video data
Duration of explosion: ~ 30 minutes


Source : Kvert

Photos : Volkstat ru.


Santiaguito , Guatemala :

Activity type: Pelean
Morphology: Complexes of dacitic domes
Geographical location: 14 ° 44 ’33 ˝ latitude N; 91 ° 34’13˝ longitude W.
Height: 2,500msnm.
Weather conditions: Cloudy
Wind: East
Precipitation: 0.1 mm.

The degassing of the crater reaches a height of about 2,600 meters and moves towards the Southwest. Due to the accumulation of ash a remobilization of the materials is observed in the crater as well as the generation of avalanches. In the early hours of the early morning, weak explosions generated white columns up to a height of 3,200 m (10,170 feet) which moved in a southwesterly direction. Small ash falls occurred on the mountainous terrain of Finca Florida and partly on Monte Claro.

Source : Insivumeh

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