Opera 2015 - Episode 038
Seismic sequence on Grecian earthquake
Event n. 6243891
Magnitude 6.5
Time: 17-11-2015 ore 07:10:08 (UTC)
Area: Costa Greca Ionica (GRECIA)
Coordinates (lat, lon) 38.74, 20.52
Deep: 10 km.
 		Event n. 6244271
 Magnitude 5.3
Time: 17-11-2015 ore 08:33:46 (UTC)
 Area: Costa Greca Ionica (GRECIA)
 Coordinates  (lat, lon) 38.84, 20.46
Deep: 34 km.


Event n. 6248111
 Magnitude 5.0
Time: 18-11-2015 ore 12:15:39 (UTC)
 Area: Costa Greca Ionica (GRECIA)
 Coordinates (lat, lon) 38.98, 20.6
 Deep: 10 km.
 		Event n. 6252951
 Magnitude 5.0
Time: 20-11-2015 ore 05:12:24 (UTC)
 Area: Costa Greca Ionica (GRECIA)
 Coordinates (lat, lon) 38.46, 20.46
Deep: 10 km.


Map taken from Google Map

Seismic events details are reported by INGV:


Radioseismic index (RI) and distances :



www.blitzortung.org

Quiet situation in all the area around earthquake and monitoring stations.

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

Geophone hourly strips,  6243891 and 6244271 events marked with white arrow, followed by pressure and surface seismic wave, well distinguished.

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

Geophone hourly strips,  6248111 event marked with white arrow, followed by pressure and surface seismic wave.


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

Geophone hourly strips,  6252951 event marked with white arrow, followed by pressure and surface seismic wave.

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

Ics101 induction coil,  6243891 and 6244271 events marked with white arrow. Schumann Resonances on left part. First train passing starting from 04:30. No RF signals correlated with earthquake event.


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

Ics101 induction coil,  hourly strips, 6243891 and 6244271 events marked with white arrow. Schumann Resonances evidenced on left bottom. No RF signals correlated with earthquake event.


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

Marconi antenna and geophone, 6243891 and 6244271 events marked with white arrow. Schumann Resonances on left part, 82 Hz carrier coming from Russian submarine communication system, interharmonics carriers coming from main network, microphonic local effect caused by wind and bird shaking of aerial antenna. No RF signals correlated with earthquake event.


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

Marconi antenna , 6243891 and 6244271 events marked with white arrow. Many statics, russian Alpha radionavigation system carriers over 11800 Hz. No RF signals correlated with earthquake event.


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

Marconi antenna and geophone plots,  6243891 and 6244271 events marked with orange vertical line.  No RF signals correlated with earthquake event comparing trends with the previous days.


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

ADA active differential antenna on top, aerial loop on bottom,  6243891 and 6244271 events marked with white arrow. Microphonic effect caused by wind shaking on both sensors. No RF signals correlated with earthquake event.


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

ADA active differential antenna on top, aerial loop on bottom,  6243891 and 6244271 events marked with white arrow. Statics, Russian Alpha carriers, PWM noise coming from solar panel, tweaks on magnetic component only during the night.Schumann Resonances on left part. No RF signals correlated with earthquake event.

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

ADA active differential antenna on top, daily strips, aerial loop on bottom,  6243891 and 6244271 events marked with white arrow.  Here we can see that PWM interference coming from solar panel installation are cyclical, correlated to the sun activity . No RF anomalies correlated with earthquake event.


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

ULFO induction coil, Sensore, 6243891 event marked with white arrow. Schumann Resonances on left part, some interharmonics carriers and weak microphonic effect caused by wind shaking. A wide band crack, just before the event, but of local origin (not present in the following spectrogram taken not far from here). No RF signals correlated with earthquake event.


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

ICS101 induction coil,  6243891 and 6244271 events marked with white arrow. Schumann Resonances on left part, weak SRS and a clear PC1 magnetic pulsation around 4 am. Very clear reception: no RF signals correlated with earthquake event.


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

The pulsation before, received from a Geophysical Institute in Sweden.  Even here no RF signals correlated with earthquake event.
 

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

Induction coil,  6243891 and 6244271 events marked with white arrow. Schumann Resonances on left part, interharmonics carriers coming from main network, microphonic effect caused by wind shaking and a strange ULF noise 1 hours before the events (but it is not a precursor because can be seen every morning). No RF signals correlated with earthquake event.

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

Induction coil,  6243891 and 6244271 events marked with white arrow. Schumann Resonances on background. Microphonic effect caused by seismic wave on coil can be seen after the first earthquake  No RF signals correlated with earthquake event.

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

Induction coil, 6248111  event marked with white arrow on centre. Schumann Resonances on left part, wind shaking effect, interharmonics carriers, ULF noise. No RF signals correlated with earthquake event.


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

Induction coil,  6248111 event marked with white arrow. Schumann Resonances on left part. No RF signals correlated with earthquake event.

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

Induction coil,  6252951 event marked with white arrow. Schumann Resonances on left part, interharmonics carriers coming from main network, ULF noise after the events (the same strange signal visible every day). 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, 6252951 event marked with white arrow. Schumann Resonances on left part,hiss noise coming from main distribution. 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,  events 6243891, 6244271, 6248111 and 6252951 marked with white arrow. First Schumann Resonance on left part. Evidenced period interferences A1, A2, A3..., B1, B2, B3...  probably of industrial origin and then carried from the electrical distribution line. No RF signals correlated with earthquake event.
    

Source files. Wave file recording by Monitoring St. 03 - ETNA RADIO OBSERVATORY From NICOLOSI (CT), Etna Park, Sicily, S Italy. Geophone on left, induction coil on right channel:
Following some extract from source files, analyzed with Sonic Visualizer.   


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

Geophone and Induction coil, 1 hour view, 6843891 event marked with red vertical line. Schumann Resonances on left part, pressure and surface wave follow the event are visible on geophone and coil for microphonic effect. No RF signals correlated with earthquake event.
  

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

Geophone and Induction coil, 1 hour view, 6244271 event marked with red vertical line. 1st Schumann Resonance on left part, pressure and surface wave follow the event in geophone. No RF signals correlated with earthquake event.
   

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

Geophone and Induction coil, 1 hour view, 6248111 event marked with red vertical line. 1st Schumann Resonance on left part, pressure and surface wave follow the event in geophone. No RF signals correlated with earthquake event.


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

Geophone and Induction coil, 1 hour view, 6252951 event marked with red vertical line. 1st Schumann Resonance on left part, pressure and surface wave follow the event in geophone. No RF signals correlated with earthquake event.

 
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