April 06 , 2016. EN. Reventador , Planchon – Peteroa , Mauna Loa , Kilauea .
April 06 , 2016.
Reventador , Ecuador :
Activity bulletin of Reventador volcano.
April 5, 2016
SUMMARY OF THE ACTIVITIES OF THE VOLCANO
The volcano continues its eruptive period with high activity.
During the early morning hours, it was observed glowing corps down on the Southeast side 200 meters below the crater, as well as gas and ash emissions to the northwest .
At the moment, the volcano area is cloudy.
ANNEX AND TECHNICAL OBSERVATIONS
From 11:00 (TL) yesterday until 11:00 (TL) today, 41 explosions (EXP), 42 long period (LP) events, 9 episodes of harmonic tremor (TA) and 5 episodes of tremor emissions (TREM) were recorded.
Observations of emissions and ashes:
During the early morning hours, it was observed glowing corps down on the Southeast side 200 meters below the crater, as well as gas and ash to the northwest emissions.
At the moment, the volcano area is cloudy.
Rain and lahars:
There was no rain in the volcano area.
The report, on a daily basis will be published at 12:00 (TL). In the case of an increase or a change in the behavior of the volcano, it will immediately issued a special report.
Source : IGEPN
Photo : Juan Carlos Diaz.
Planchon – Peteroa , Chile :
Activity bulletin of volcanic complex Planchon -Peteroa.
The level of activity of the volcanic complex is at the level:
YELLOW: changes in the behavior of the volcanis activity -Time for eruption : weeks / months.
Based on the analysis of information obtained from monitoring equipment and surveillance of the volcanic complex, the National Service of Geology and Mining (SERNAGEOMIN) through the Volcanological Observatory of Southern Andes (OVDAS) announces:
During this period, eleven (11) events related to rigid materials fracturing process (called volcano -tectoniques VT) were recorded, the largest of which had a maximum local magnitude (ML) equal to 1.4 M, located 2.9 km to the northeast (NE) of the main crater at a depth of 6.4 km.
Similarly, they were categorized 4840 events associated with the fluid dynamics inside the volcano, known as long time events (LP), the more energetic with a local magnitude (ML) of M1,1 and a reduced displacement value (DRC) equal to 3,1cm2.
The images from the IP camera, showed no degassing of the main crater.
The images published by the OMI Group (Ozone Monitoring Instrument) Sulfur Dioxide Group (http://so2.gsfc.nasa.gov/) NESDIS (National Environmental Satellite, Data information – http: // satepsanone .nesdis.noaa.gov) reported no abnormality in sulfur dioxide emissions (SO2) into the atmosphere in the volcanic complex sector.
Thermal radiation released by the MODVOLC (Moderate Resolution Imaging Spectroradiometer – http://modis.higp.hawaii.edu/) MODIS, on its website , and Mirova (Middle InfraRed Observation of Volcanic Activity) on its website (http: / /www.mirovaweb.it/), surveillance systems that indicate significant changes in surface temperature, have issued any reports of heat alerts in the zone associated with the volcanic complex.
There are no reports of local authorities or communities about anomalies seen in the volcanic area.
Although the recorded events have low energy levels and a slight decrease of onset, the activity of the volcanic system continues with an activity above the base rate.
For the above the level of volcanic alert level remains at Yellow.
Source : Sernageomin.
Mauna Loa , Hawai :
19°28’30 » N 155°36’29 » W,
Summit Elevation 13681 ft (4170 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW
Mauna Loa is not erupting. There have been no significant changes in seismicity recorded beneath Mauna Loa over the past week. Seismicity remains elevated above the long-term background level, as shallow earthquakes continue to occur mostly beneath Mauna Loa’s upper Southwest Rift Zone at depths of less than 5 km (3 mi). Global Positioning System (GPS) measurements show continued deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone, with inflation recently occurring mainly in the southwestern part of the magma storage complex.
Mauna Loa is the largest active volcano on our planet, rising gradually to 4,170 m (13,681 ft) above sea level. Its long submarine flanks descend an additional 5 km (3 mi) below sea level to the ocean floor. The ocean floor directly beneath Mauna Loa is, in turn, depressed by the volcano’s great mass another 8 km (5 mi). This places Mauna Loa’s summit about 17 km (56,000 ft) above its base. The enormous volcano covers half of the Island of Hawaiʻi.
Source : HVO.
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 in a relatively steady fashion 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. Earthquake rates and seismic tremor are at background levels.
Summit deflation began yesterday at about 5pm and continues this morning. Kilauea’s summit lava lake level dropped with ongoing deflation, and was roughly 33 m (~110 ft) below the vent rim this morning. Seismic activity across the volcano is at background levels this morning, but over the past day another cluster of small earthquakes occurred at the summit. Fluctuations in summit tremor amplitudes are related to spattering along the edges of the lava lake. The sulfur dioxide emission rate was about 1800 metric tons/day when last measured on April 3.
Pu’u ‘O’o Observations:
A small lava flow erupted from a vent on the floor of Pu’u ‘O’o crater yesterday. Outgassing continues from the spatter cones on the crater floor. Inflationary tilt was registered on the tiltmeter on the north flank of Pu’u ‘O’o. The sulfur dioxide emission rate from all East Rift Zone vents was about 240 metric tons/day when last measured on March 10.
June 27th Lava Flow Observations:
The webcam shows small breakouts scattered northeast of Pu’u ‘O’o, where they have been occurring for the last several months. A satellite image from March 29 showed the most distal of these breakouts was 7.6 km (4.7 mi) northeast of Pu’u ‘O’o. The lava flow currently poses no threat to nearby communities.
Source : HVO
Photos : Bruce Omori.