Opera 2015 - Episode 003

Event n. 4004900841
Md. 5.2
Date/time: 28/01/2015 15:54:37 (UTC)
Area:  Crete, Greece
Coordinates (lat, lon) 34.38, 25.08
Deep: 20 km



Map taken from Google Map

Seismic event details are reported by INGV:  http://cnt.rm.ingv.it/event/4900841


Radioseismic index (RI) and distances:


Source files:
Stereo wave file of earthquake, from 12:00 to 16:00, left channel geophone, right channel induction coil:
28JAN15-1200_coil.wav

ERO multistrip Geophone detection:

The time of the earthquake 4004900841 is marked with a white arrow.
Followed, after a few minutes in the box square, pressure wave and surface wave.

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

No magnetic anomaly detected first or during the event.
Schumann resonances faintly visible because of the wind that shakes the system.
Very low frequency noise. But it is coming from the main , present every day more or less at the same time, so it is not a precursor.

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

Event 4004900841 marked with white arrow. No magnetic anomaly detected coinciding with the event.
Wind shaking, noise from main and a local storm: daily routine.

ERO Magnetic field below 9 Hz daily representation, detected with induction coil:

Event 4004900841 marked with white arrow. First Schuman resonances marked on left side.
Main disturbance in the white ovals: see how they look like geomagnetic pulsations, but are present every day at the same hour.
No magnetic anomaly detected coinciding with the event.
 
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