Opera 2015 - Episode 013

Event-ID: 4005230821
Magnitude (Ml): 3.2
Time: 11/04/2015  05:33:13 (UTC)
Coordinates:  (lat, lon) 44.49, 6.68
Deep: 10 km
Seismic district: Alpi_Cozie


Map taken from Google Map

Seismic event details are reported by INGV:  http://cnt.rm.ingv.it/event/5230821


Radioseismic index (RI) and distances:



Source files taken from Monitoring St. 01 - IK1QFK  CUMIANA (TO), NW Italy:

Stereo wave file of earthquake, from 0400 to 0800 11 APR 2015, Geophone signal on L, Electric Filed on R channel
11APR15-0400_E.wav

Stereo wave file of earthquake, from 0400 to 0800 11 APR 2015, Induction coil, NS on L and EW direction on R channel
11APR15-0400_IC100-RDF.wav


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

Geophone. The trace of 4005230821 earthquake is marked with white arrow.

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

Geophone on top, electric field on bottom. The 4005230821 earthquake is marked with white arrow in electric filed spectrogram and with white oval on geophone spectrogram. Schumann Resonances marked on left. ZEVS 82 Hz carrier clearly visible, some 50 Hz mirrored signals. No RF signals correlated with earthquake event.


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

Electric field daily multistrip spectrogram.  The 4005230821 earthquake is marked with white arrow, Schumann Resonances marked on left, effect of bird and wind antenna shaking visible every day in daylight. No RF signals correlated with earthquake event.


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

Electric field received with Marconi antenna.  The 4005230821 earthquake is marked with white arrow. Statics, alpha carriers, local noise but no RF signals correlated with earthquake event.


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

Electric field plot, with added geophone trace and second Schumann resonance frequency: no RF anomalies correlated with earthquake event, also compared with previous days. The 4005230821 earthquake is marked with orange arrow

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

Hourly multistrip RDF indiction coils. The 4005230821 earthquake is marked with white arrow. Train passing 5 km away from monitoring station, Schumann Resonances marked on right part (on top). No RF signals correlated with earthquake event.


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

Electric filed on top and magnetic field on bottom. The 4005230821 earthquake is marked with white arrow. Wind shaking effect, solar panels charge regulators starts with daylight (they are placed 100m away). Schumann Resonances very weak on background. No RF signals correlated with earthquake event.

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

Electric filed on top and magnetic field on bottom. The 4005230821 earthquake is marked with white arrow. Solar panels charge regulators starts with daylight. No RF signals correlated with earthquake event.

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

Multistrip daily composite electric/magnetic spectrogram. The 4005230821 earthquake is marked with white arrows. Some tweaks activity during the previous nights. No evidence of RF signals correlated with earthquake event.

Monitoring St. 06 - TORINO VLF MONITORING STATION, NW Italy

Fluxgate signal. Frequency output on top (corresponding to DC magnetic field) and spectrum on bottom (from DC to 20 Hz). The 4005230821 earthquake is marked with white arrows. No evidence of anomalies correlated with earthquake event.

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

Detail of source wave files analyzed with Sonic Visualizer, geophone and electric filed. The 4005230821 earthquake is marked with white arrow. In the white oval the geophone seismic event trace. Any evidence in correlation to the event.

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

Detail of source wave files analyzed with Sonic Visualizer, orthogonal induction coils. The 4005230821 earthquake is marked with white arrows. Any magnetic signal correlated to the event.

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