Opera 2015 - Episode
007
Event n. 4975321
MD
3.9
Date/time:2015-02-17 19:42:53
(UTC)
Area: Appennino Bolognese.
Coordinates: (lat, lon)
44.18, 11.41
Deep: 8 km
Seismic event details are reported by
INGV: http://cnt.rm.ingv.it/event/4975321
Map
elaborated with Google Map
Radioseismic index (RI) and distances:
OpenLab Source
file:
-
Stereo wave file recorded during the earthquake, from
16:00 to 20:00. Left channel: Station 05 - NORTHERN CROSS
RADIOTELESCOPE Medicina (IT - Bologna), N Italy. Right
channel Station 04 - ROMAGNA OBSERV. From Sogliano al
Rubicone (FC), N Italy: 17FEB15-1600to2000_sogliano-ulfo.wav
The
file has been normalized: frequencies and times coincide with
the real ones.
Station 04 - ROMAGNA OBSERV. From Sogliano al
Rubicone (FC), N Italy. ICS101 induction coil.
4004975321 event is marked with a
white arrow. Schumann resonances marked on left
part of spectrogram. No magnetic anomalies first,
during or after the earthquake.
Station 04 - ROMAGNA OBSERV. From
Sogliano al Rubicone (FC), N Italy. ICS101 induction
coil.
4004975321
event
is marked with a white arrow. First
Schumann resonances always visible, and
sometime local noise correlated with
wind activity. No magnetic anomalies
first, during or after the earthquake.
Station 05 - NORTHERN
CROSS RADIOTELESCOPE From Medicina (IT - Bologna), N Italy.
Static electric field detected with Boltek Receiver.
4004975321
event is marked with a red arrow. No magnetic
anomalies first, during or after the earthquake.
Station 05 - NORTHERN
CROSS RADIOTELESCOPE From Medicina (IT
- Bologna), N Italy. Magnetic field
detected with ULFO induction
coil.
4004975321
event
is marked with a white
arrow. Schumann resonances
marked on left part of
spectrogram. No magnetic
anomalies first, during or
after the earthquake.
Station 05 - NORTHERN
CROSS RADIOTELESCOPE From Medicina (IT
- Bologna), N Italy. Magnetic field
daily strips detected with ULFO
induction coil.
4004975321
event
is marked with a white arrow. First Schumann
resonances always visible, and sometime local noise
correlated with wind activity. No magnetic anomalies
first, during or after the earthquake.
Station
05 - NORTHERN CROSS
RADIOTELESCOPE From
Medicina (IT -
Bologna), N Italy. Magnetic
field hourly
strips detected
with ULFO
induction coil.
4004975321
event
is marked with a white arrow.
Composite analysis with Station 04 - ROMAGNA
OBSERV. on top and Station
05 - NORTHERN
CROSS
RADIOTELESCOPE
on bottom.
Spectrogram elaborated with Sonic visualizer. Here
the time resolution is greater: in station 04 there
are some strange noise bands before the event (in
purple oval), seismic event marked with red line,
followed by the effect microphone after the event
due to the passage of the seismic wave. It is a very
strange phenomenon that does not find other evidence
during the day: it's as the background noise was put
to pulse before the earthquake.
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