September 10 , 2017. EN.  Colima , Kilauea , Reventador , Nevado del Ruiz .

Home / blog georges Vitton / September 10 , 2017. EN.  Colima , Kilauea , Reventador , Nevado del Ruiz .

September 10 , 2017. EN.  Colima , Kilauea , Reventador , Nevado del Ruiz .

September 10 , 2017.

 
Colima , Mexico :

The volcano of Colima presents indications of a new rise of magma.

The increased seismicity of the Colima volcano, high-frequency events and the increase in boron detected in runoff, are generally indicative of a new ascending magma pulse.
This was emphasized in the Weekly Report (1-7 September) of the Telemetric Seismological Network (RESCO) and the University Research Center in Vulcanology (CUEIV) at the University of Colima.
The thermal images developed during the last week could indicate that the magma rise rate is low and that is why there is no body of lava on the surface. It is important to monitor the evolution of this increase in activity. In addition, the occurrence of possible explosions in the next days or weeks is not ruled out the document.
it was reported that on September 2 there was an overflight of the volcano, where a higher thermal emission was detected inside the crater, although the growth of a new dome did not not been observed.

The highest recorded temperature was 198 ° c from a point at the bottom of the crater.
During the few periods during which the volcano could be observed due to the weather conditions prevailing in the reported period, it was not possible to observe or detect phenomena associated with volcanic activity (incandescence, ash explosions, flows pyroclastic and / or landslides).
During the last week, 24 high frequency (HF) events, 22 long-term events (LP), 1.9 tremor hours and 3 landslides were recorded automatically.

Source : afmedios.com.

 

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:
Kīlauea Volcano continues to erupt at the summit and from the Puʻu ʻŌʻō vent on its East Rift Zone. The episode 61g lava flow continues to enter the ocean at Kamokuna. Surface flow activity persists on the upper portion of the flow field and in scattered areas of the coastal plain. These lava flows pose no threat to nearby communities at this time. Low rates of ground deformation and seismicity continue across the volcano.

Summit Observations:
Deflationary tilt continued for another day, consistent with the deflation phase of a summit DI event (see definitions below). The lava lake surface height also continued to lower and was about 53.5 m (175 ft) below the rim of the Overlook crater when measured yesterday evening. Several small to medium-sized rockfalls occurred into the lava lake in the past 24 hours. These happened at 11:06 AM, 12:16 PM, 3:12 PM, 6:06 PM and 6:12 PM HST yesterday and another occurred at 5:10 AM HST this morning. Frequent rockfalls are not uncommon during periods of lake level lowering. Webcam views of the lava lake can be found at this webpage: http://hvo.wr.usgs.gov/cams/region_kism.php. Seismicity is within normal, background rates with tremor fluctuations associated with lava lake spattering. Summit sulfur dioxide emission rates remain high.

Puʻu ʻŌʻō Observations:
Webcam images over the past 24 hours show persistent glow at long-term sources within the crater and from a small lava pond on the west side of the crater. There were no significant changes in seismicity over the past 24 hours and no significant change in measured ground tilt. The sulfur dioxide emission rate from the East Rift Zone vents has been steady over the past several months and remains significantly lower than the summit emission rate.

Lava Flow Observations:
The episode 61g flow is still active and entering the ocean at Kamokuna. Webcam images show that surface lava flow activity persists on the upper portion of the flow field and in scattered areas of the coastal plain. None of these flows poses a threat to nearby communities at this time. The lava delta continues to grow and several prominent cracks are still present, highlighting the potential for bench collapse into the sea.

Source : HVO
Photos :  Bruce Omori , David Ford , HVO .

 

Reventador , Ecuador :

Activity Bulletin of Saturday, September 09, 2017.

SUMMARY OF THE VOLCANIC ACTIVITY:
The volcano maintains a high and continuous eruptive activity. Surface activity is characterized by the emission of steam and ash that dissipate towards the West. During the night it was possible to observe an incandescence in the crater.

TECHNICAL APPENDIX AND OBSERVATIONS:

Seismicity: from 11h00 (TL) yesterday and until 11h00 (TL) today, three episodes of tremor harmonic (TRA), 3 episodes of tremor of emission (TRE), 21 events of type long period (LP) and 10 explosions (EXP).
Observations, emissions and ash: during the night, steam emissions with moderate ash contents were observed, accompanied by incandescence at the crater. In today’s morning, emissions have been observed with a moderate ash load up to a height of 600 meters above the western crater.
Rain and lahars: no rain.

GENERAL INFORMATIONS.
• This daily report will be issued at 12:00 noon (TL) and as long as the activity level of the volcano justifies it. If there is an increase or change in the behavior of the volcano, a special report will be issued immediately.

Source : IGEPN
Photo : iWanatrip.

 

Nevado del Ruiz , Colombia :

The Servicio Geológico Colombiano indicates that at 08:59 the Nevado del Ruiz volcano recorded a new seismic activity.
The magnitude of the event was M3.0 and was reported as felt in the areas surrounding the crater of the volcano. Its depth was less than 30 kilometers.

This type of earthquake is associated with the fracturing of rocks in the volcano, as happened in recent years. Since 2012, the Nevado del Ruiz shows an instability in its behavior.
The level of activity continues to be yellow, and relief agencies and the Risk Management Unit recommend that the community keep abreast of reports or changes that may occur on the volcano.
It is not excluded that there may be ash fall in areas around the volcano.

Source : Caracol.com

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