Opera 2015 - Episode 031

Event number: 6081621
Magnitude Mwpd 8.2
Date/time: 16-09-2015  22:54:33 (UTC)
Area: Near coast of central Chile
Geographic coordinates (lat, lon) -31.4, -71.6
Deep: 20 km.


Map taken from Google Map

Seismic event details are reported by INGV:  http://cnt.rm.ingv.it/event/6081621


Radioseismic index (RI) and distances :



http://www.irf.se/maggraphs/puls.php - Kiruna Geophysical Institute (Sweden )

An interesting comparison of geomagnetic activity, starting three days before the event until the following day. Comparing the day of the earthquake activity with the previous ones: it is clear that It does not highlight any abnormal activity. They are visible PC1 and the background noise at very low frequency, increases in the evening, as usually happens every day. It is clear that Kiruna observatory does not received emissions on a planetary scale, associated with the earthquake, at least on these frequencies. But let's see what happens in another important observatory in Finland.


http://www.sgo.fi/Data/Pulsation/latestPulsation.php - Sodankyla Geophysical Observatory (Finland)

As in Kiruna, no abnormal signal associated with the earthquake. If you do not know on what day happened the earthquake, looking at the spectrogram of the various days only, you are not able to establish any connection between earthquake and radio signals at these frequencies. And now data coming from our network.



Monitoring St. 01 - IK1QFK  CUMIANA (TO), NW Italy     

Two orthogonal ICS101 induction coils , complex RDF spectrograms,  6081621 event marked with white arrow. Schumann Resonances on right part, train passings. No RF signals correlated with earthquake event.


Monitoring St. 01 - IK1QFK  CUMIANA (TO), NW Italy 

Geophone on top, marconi antenna on bottom, 6081621 event marked with white arrow. Schumann Resonances marked on left part, 82 Hz ZEVS Russian network carrier, some 50 Hz mirrored signals and microphonic effect due to the wind shaking of bic aerial antenna. No RF signals correlated with earthquake event.



 Monitoring St. 02 - CSP VLF MONITORING STATION From Pontese dew (TO), NW Italy    

ADA floating electric field receiver on top, aerial loop 1m x 1m on bottom,  6081621 event marked with white arrow. Schumann Resonances weakly on background. No RF signals correlated with earthquake event.


Monitoring St. 05 - NORTHERN CROSS RADIOTELESCOPE From Medicina (IT - Bologna), N Italy      

ULFO induction coil,  6081621 event marked with white arrow. Schumann Resonances marked on right part. Local storm precedes the event and wind shakes the coil causing microphonic effect. No RF signals correlated with earthquake event.



Monitoring St. 04 - ROMAGNA OBSERVATORY From Sogliano al Rubicone (FC), N Italy.     

ICS101 iduction coil,  6081621 event marked with white arrow. Schumann Resonances marked on right part. Local storm precedes the event. Some carriers coming from main power distribution and weak SRS on background. No RF signals correlated with earthquake event.



Monitoring St. 03 - ETNA RADIO OBSERVATORY From NICOLOSI (CT), Etna Park, Sicily, S Italy    

Induction coil,  6081621 event marked with white arrow. Schumann Resonances on right part. Low frequency noise coming from main network precedes the event. No RF signals correlated with earthquake event.


Monitoring St. 01 - IK1QFK  CUMIANA (TO), NW Italy 

Two ICS101 othogonals induction coils, complex FFT RDF spectrogram, hourly multistrips  6081621 event marked with white arrow. Schumann Resonances on left part, and train passings. No RF signals correlated with earthquake event.


 
Monitoring St. 05 - NORTHERN CROSS RADIOTELESCOPE From Medicina (IT - Bologna), N Italy      

Ulfo induction coil, hourly strips,  6081621 event marked with white arrow. Schumann Resonances on right part, local storm and microphonic effect caused by wind shaking. No RF signals correlated with earthquake event.



Monitoring St. 03 - ETNA RADIO OBSERVATORY From NICOLOSI (CT), Etna Park, Sicily, S Italy 

Induction coil, hourly strips,  6081621 event marked with white arrow. Schumann Resonances on right part and hiss noise coming from main network. No RF signals correlated with earthquake event.


 
Monitoring St. 03 - ETNA RADIO OBSERVATORY From NICOLOSI (CT), Etna Park, Sicily, S Italy   

Induction coil, daily strips,  6081621 event marked with white arrow on top. 1st Schumann Resonance on right part, daily sunrise and sunset noise, some geomagnetic pulsation. No RF signals correlated with earthquake event.


Monitoring St. 01 - IK1QFK  CUMIANA (TO), NW Italy      

Marconi antenna (electric field), daily strips,  6081621 event marked with white arrow. Schumann Resonances marked on right part on bottom, some local storm and wind shaking effect every day at very low frequency. No RF signals correlated with earthquake event.



Monitoring St. 05 - NORTHERN CROSS RADIOTELESCOPE From Medicina (IT - Bologna), N Italy    

ULFO induction coil, daily strips,  6081621 event marked with white arrow on top. 1st Schumann Resonance on left part, daily noise caused by wind, some geomagnetic pulsation. No RF signals correlated with earthquake event.


Monitoring St. 02 - CSP VLF MONITORING STATION From Pontese dew (TO), NW Italy   

ADA floating electric field receiver on top, aerial loop 1m x 1m on bottom, 6081621 event marked with white arrow. Many statics, and tweaks on magnetic component only. No RF signals correlated with earthquake event.


Monitoring St. 01 - IK1QFK  CUMIANA (TO), NW Italy   

Geophone and Marconi antenna levels plot,  6081621 event marked with white arrow. Traces show the same envelope of the other days. No anomalies correlated with earthquake event.



Monitoring St. 05 - NORTHERN CROSS RADIOTELESCOPE From Medicina (IT - Bologna), N Italy    

Boltek static electric filed receiver, daily plot,  6081621 event marked with white arrow. No RF anomalies correlated with earthquake event.



Monitoring St. 05 - NORTHERN CROSS RADIOTELESCOPE From Medicina (IT - Bologna), N Italy    

Boltek static electric filed receiver, weekly plot,  6081621 event marked with white arrow. Total quiet befor the event: no RF signals correlated with earthquake event.


Source files:

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