Opera 2015 - Episode 000
Preliminary episode, startup of monitoring activity.
 
Event-ID: 4004782251
Magnitude (Mwp): 4.4
Time 28-12-2014 21:43:38 (UTC)
Coordinates: (lat, lon) 39.29, 16.36
Deep:  14 km
Area: provincia/zona Cosenza


South Italy, Calabria, Sila Mountains erthquake (218 km far away from ERO station) with Radio seismic index value is: -4.15 dBe.
And Etna volcano paroxysme (just under ERO station sensors).
Seismic event details are reported by INGV: http://cnt.rm.ingv.it/event/4782251


Seismic map. Red arrow shows ERO (Etna Radio Observatory) station to 4004782251 earthquake distance:



Vulcanic tremor as reported by INGV http://www.ct.ingv.it/ufs/analisti/maps.php



Source files:
Stereo wave file of earthquake, from 20:00 to 24:00, left channel geophone, right channel induction coil:
28DEC14-2000_coil.wav

Stereo wave file of paroxysme, from 16:00 to 20:00, left channel geophone, right channel induction coil:
28DEC14-1600_coil.wav

 
ERO multistrip Geophone detection:


ERO Magnetic field below 10 Hz daily multistrip representation, detected with induction coil:

Paroxysme start/end and 4004782251 event are indicated by white arrow. Vertical scratches are microphonic effects caused by wind.
No magnetics anomaly detected if compared with earlier days.

ERO Magnetic field below 35 Hz, detected with induction coil:

Paroxysme start/end indicated by white arrow. Vertical scratches are microphonic effects caused by wind.
No magnetic anomaly detected first or during the event.

ERO Magnetic field below 35 Hz, detected with induction coil:

Event 4004782251 marked with white arrow. No magnetic anomaly detected coinciding with the event.
The signal in the red oval is a magnetic anomaly which occurs almost everyday, at the same time, and therefore anthropogenic.

ERO Magnetic field below 35 Hz hourly multistrip representation, detected with induction coil:
Event 4004782251 marked with white oval. No magnetic anomaly detected coinciding with the event.
Red noises over 28 Hz are microphonic effects caused by wind.
 
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