Volcanic Activity Report (RAV) Maule Region
Activity report of the volcanic complex of Planchón-Peteroa (February 1 to 15).
The level of activity of the complex is at: YELLOW; changes in the behavior of volcanic activity
Time for a probable eruption weeks / months.
Based on the analysis of information obtained from monitoring equipment and surveillance of the volcanic complex , the National Service Geology and Mines (SERNAGEOMIN) through the Volcanological Observatory of Southern Andes (OVDAS) announces:
During the reporting period, sixteen (16) events related to rock fracturing process (called volcano-tectonic, VT) with a maximum local magnitude (ML) of M 0,4 were recorded.
Similarly 3,634 earthquakes were classified, associated with the fluid dynamics inside the volcano (called long period LP) with local magnitude (ML) of less than M 1.1 and reduced displacement values (RDC) below 2,1cm2.
IP camera images showed degassing from the main crater , whitish in color, first suggesting the presence of water vapor. It reached an altitude of about 200 m above the crater.
The images published by the IMO Group (Ozone Monitoring Instrument) Sulfur Dioxide Group (http://so2.gsfc.nasa.gov/) and NESDIS (National Environmental Satellite, Data, and Information Service (http: // satepsanone.nesdis. noaa.gov) reported no abnormality in the emissions of sulfur dioxide (SO2) into the atmosphere in the volcanic complex sector.
Thermal radiation published by MODVOLC (Moderate Resolution Imaging Spectroradiometer) MODIS on its website (http://modis.higp.hawaii.edu/) and Mirova (Middle InfraRed Observation of Volcanic Activity) on its website (http: // .mirovaweb.it www /), monitoring systems to indicate important changes in surface temperature, reported no thermal warning reported in the area 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, this increase in the number of events associated with fluid dynamics, present past few weeks, suggests that the system has a volcanic activity that is above the base rate .
In this scenario, there is a possibility of occurrence of small ash emissions, for this, the Planchón-Peteroa volcanic complex remains at volcanic alert level Yellow.
February 20 , 2016. Planchón-Peteroa , Chile :
Source : Sernageomin .
Photos : Bigthink, T13 cl.