April 21 , 2016. EN. Santiaguito , Kilauea , Cumbal , Klyuchevskoy.
April 21 , 2016.
Santiaguito , Guatemala :
Activity Type: Peléenne
Morphology : Complex of dacitic domes
Geographical location: 14 ° 44’33 « North Latitude, 91 ° 34’13 » West Longitude.
Santiaguito volcano, as reported through newsletters, continues its phase of high activity. Tonight from 10:34 p.m.
It was a sharp explosion, generating pyroclastic flows toward the southeast and southern Caliente dome.
This activity was generated by the collapse in the east and west of the crater rim, and raised a cloud of ash up to 4,000 meters, which is moved to the East and South, a distance of 25 kilometers. It is estimated that due to the fineness of the ash cloud that could extend further as happened during the previous days.
This activity was generated by the collapse in the east and west of the crater rim, and raised a cloud of ash up to 4,000 meters, which is moved to the East and South, to a distance of 25 kilometers. It is estimated that due to the fineness of the ash cloud that could extend further as happened during the previous days.
The abundant ash fell on the FCAS, San Jose, La Quina, Aldea Santa Maria de Jesus, and south of Aldea Las Marias, and perhaps in the next few minutes, on San Felipe, Retalhuleu and other areas in the areas of Quetzaltenango, according to the variability of the wind.
Santiaguito made several similar events during this month and is expected to generate similar or more intense events in the hours and \ or upcoming days. So, do not stay near the volcanic complex because it can generate pyroclastic flows.
Therefore, the INSIVUMEH recommends:
At the CONRED, to take the necessary precautions to implement the vigilance it deems necessary, take precautions with the air near the volcanic complex, mainly because of the ash that can contaminate drinking water and cause problems breathing.
At the Directorate General of Civil Aviation, to take precautions with air traffic, such as ash moves westbound and Southwest, at 4000 meters above sea level, with the potential to be transported over distances of over 25 km.
Source : Insivumeh
Photo : Denis Hernandez
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 continues to erupt at both the summit, where there is a circulating lava lake, and from its East Rift Zone, where surface lava flows are active northeast of the Pu’u ‘O’o vent. The East Rift Zone lava flow currently poses no threat to nearby communities. Summit tilt has changed very little during the past 24 hours; earthquake rates and seismic tremor have not changed significantly in the past day.
Summit tiltmeters recorded very little change in tilt during the past day. As of Tuesday morning, the summit lava lake level was 47 meters (154 ft) below the current Halema’uma’u crater floor. Seismic activity across the volcano has not changed significantly during the past day. Fluctuations in summit tremor amplitudes are related to spattering along the edges of the lava lake. The average sulfur dioxide emission rates during the past week ranged between 1,400 and 4,500 metric tons/day; the most recent average emission rate on April 19 was about 4,500 metric tons/day.
Pu’u ‘O’o Observations:
There were no observable changes at Pu’u ‘O’o during the past day. Outgassing continues from the spatter cones on the crater floor. A tiltmeter on the north flank of Pu’u ‘O’o recorded only slight inflationary tilt during the past day. For the past several months, GPS instruments that span Pu’u ‘O’o had shown the cone was spreading, which suggests the magma system beneath the vent was pressurizing; the pronounced deflationary episode April 5-9 at Pu’u ‘O’o, however, interrupted this long-term trend. The sulfur dioxide emission rate from all East Rift Zone vents was about 300 metric tons/day when last measured on April 6.
June 27th Lava Flow Observations:
The webcam images continue to show small breakouts scattered northeast of Pu’u ‘O’o, where they have been occurring for the past several months. This pattern is consistent with observations of an HVO field crew visiting the flow field April 12. The crew saw very minor expansion of the northern edge of the flow field since the previous visit weeks ago. As of the 12 April field visit the most distal breakouts were about 5.7 km (3.5 mi) northeast of Pu’u ‘O’o.
Source : HVO
Photo : Bruce Omori
Cumbal , Colombia :
Subject: Activity Bulletin of theCumbal volcano.
The level of activity of the volcano remains at: YELLOW (III): changes in the behavior of volcanic activity.
About the monitoring activity of the volcanic complex of Cumbal volcano, the Colombian Geological Service, noted that:
Seismic activity remains low, with a slight increase compared to the previous week, and the predominance of events related to the movement of fluid in the volcanic system. Events related to rock fracturing are located mainly in and near the Plazuela crater, with depths of up to 9.2 km and local magnitudes between M1 and M0.2 on the Richter scale.
On 12 and 14 April, it was possible to register white gas emissions stretching variably by the wind on the fumaroles fields located in the northeast and southwest of the volcanic complex .
The Colombian Geological Commission follows closely the evolution of the volcanic phenomenon and will continue to report timely to the changes that may occur.
Source : MAURICIO DIEGO MARTÍNEZ GÓMEZ
Coordinateur du Groupe de travail , Observatoire Volcanologique et Sismologique de Pasto
Photo : SGC
Klyuchevskoy , Kamchatka :
56.06 N, 160.64 E;
Elevation 15580 ft (4750 m)
Aviation Color Code is YELLOW
Explosive eruption of the volcano continues. Ash explosions up to 19,700-26,240 ft (6-8 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
Explosive volcano eruption of Strombolian type continues. A strong gas-steam activity of the volcano continues too. Satellite data by KVERT showed an intensive thermal anomaly over the volcano all week. Strong gas-steam plumes containing ash extended for about 55 km to the north-east on 15 April.
On the other hand, Volkstat.ru. learn us that:
Increased volcanic activity continues on Klyuchevskoy.
On the night of April 14 to 15, began strengthening volcanic activity with lava gushing into the crater up to 200 m on the edge. In the morning, appeared weak and occasional ash emissions.
At night, there is a constant glow in the crater in the infrared range. According KFGS RAS spasmodic volcanic tremors continue until 5.05 m / sec. and continue to grow.
At night, through clouds, in a crater there is a constant emission of light incandescent bombs at a height of 100 m above the crater rim. Lava flows on the volcano slopes were observed.
Source : Kvert , Volkstat.ru.
Photo : Volkstat.ru.