June 08 , 2020.
Chile , Nevados of Chillan :
Special report on volcanic activity (REAV), Ñuble Region, Nevados de Chillán volcanic complex, 07 June 2020, 03:25 local time (continental Chile).
The National Geological and Mining Service of Chile (Sernageomin) publishes the following PRELIMINARY information, obtained thanks to the surveillance teams of the National Volcanic Surveillance Network (RNVV), processed and analyzed at the South Andean Volcanological Observatory (Ovdas):
Yesterday, Sunday 07 June at 02:57 local time (06:57 UTC), the monitoring stations installed near the Nevados de Chillán volcanic complex recorded an earthquake associated with the fracturing of rocks (Volcano-Tectonic type).
The characteristics of the earthquake after its analysis are as follows:
TIME OF ORIGIN: 02:57 local time (06:57 UTC)
LATITUDE: 36 864 ° S
LONGITUDE: 71 372 ° W
DEPTH: 2.6 km
LOCAL MAGNITUDE: 3.0 (ML)
OBSERVATIONS:
There was no surface activity associated with the earthquake.
The volcanic technical alert remains at the level: Yellow.
Source : Sernageomin .
Photo : Josefauna , 03 mai 2020.
Indonesia, Anak Krakatau :
Level of activity at level II (Waspada) since March 25, 2019. The Gunung Anak Krakatau volcano (157 m above sea level) has experienced an increase in its volcanic activity since June 18, 2018, which was followed by a series of eruptions in the period from September 2018 to February 2019. The last eruption occurred on April 17, 2020 with a strong column of eruption which was not observed.
The volcano is covered with fog. No smoke from the crater is observed. The weather is sunny to cloudy, light winds direction South, West and North-West.
According to the seismographs of June 7, 2020, it was recorded:
14 emission earthquakes
108 low frequency earthquakes
9 hybrid earthquakes / multiple phases
3 shallow volcanic earthquakes
1 distant tectonic earthquake
Continuous tremor, amplitude 0.5 to 8 mm (dominant value of 2 mm)
Recommendation: People / tourists are not allowed to approach the crater within a radius of 2 km.
VONA: The last VONA ORANGE color code sent was published on April 17, 2020 at 5:51 p.m. No eruption related to the height of the eruption column had been observed.
Source : PVMBG.
Photo : Jára Pokorný.
Ecuador , Tungurahua :
Information on the TUNGURAHUA volcano, FRIDAY JUNE 5, 2020.
Today, Javier Mayorga of the risk management area of the Cantonal GAD de Baños reports that a decrease in the flow of mud and debris is recorded in the Achupashal and Romero Quebradas located on the western flank of the Tungurahua volcano. Currently the vehicle passage is closed in the area. This phenomenon is recurrent due to the large accumulation of matter in the upper parts of the volcano which is remobilized by the constant rains in the sector.
On May 16, 2020, the IGEPN published this notice:
The internal activity of the Tungurahua volcano is low and its surface activity is zero. Through direct communication with Javier Mayorga of the risk management area of the Cantonal GAD de Baños, mudslides are reported in the Achupashall, Chontapamba, Romero and Vazcún streams. The fact is due to the elimination of unconsolidated materials present in these rivers and eliminated by the constant precipitation suffered in the region during the morning and afternoon of today.
Source : IGEPN.
Guatemala , Santiaguito :
Activity type: Pelean
Morphology: Dacitic dome complex
Location: 14 ° 44 ’33 ˝ Latitude N; 91 ° 34’13˝ Longitude W
Height: 2500m
Atmospheric conditions: partly cloudy
Wind: Northeast
Precipitation: 0.5 mm.
Activity:
Presence of white degassing at an altitude of 3000 m which disperses to the West and Southwest. Weak explosions are recorded which raise the ash columns to a height of 3400 m above sea level (11154 ft) which disperse in the West and in the South-West, generating weak avalanches towards the South and South-East flank with sliding distances to the base of the dome. We note the fall of fine particles of ash in the volcanic perimeter. For short periods, it is possible to hear sounds similar to aircraft turbines, due to the constant degassing of the Caliente dome.
Source : Insivumeh .
Photo : G Vitton
