Opera 2015 - Episode
008
Event n. 5046801
MD 3.4
Date/time: 2015-03-04
00:00:04 (UTC)
Area: TOSCANA - FIRENZE.
Coordinates: (lat, lon) 43.6, 11.18
Deep: 9 km
Map elaborated with
Google Map
Seismic event details are reported by INGV: http://cnt.rm.ingv.it/event/5046801
Radioseismic index (RI) and distances:
OpenLab Source file:
-
Stereo wave file recorded during the earthquake, from
20:00 2015-03-03 to
04:00 2015-03-04 . 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:
03MAR15-2000to0400_ULFO-soglianojoin.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.
4005046801 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.
Static electric field detected with Boltek Receiver.
4005046801
event is marked with a red arrow. Ordinary electric
activity: first, during or after the earthquake.
Station 05 - NORTHERN
CROSS RADIOTELESCOPE From Medicina (IT
- Bologna), N Italy. Magnetic field
detected with ULFO induction
coil.
4005046801 event
is marked with a white
arrow. Schumann resonances
marked on left part of
spectrogram. Not evident
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.
4005046801
event
is marked with two white arrows, at strip end and
strip start.
Station
05 - NORTHERN
CROSS
RADIOTELESCOPE
From Medicina
(IT -
Bologna), N
Italy. From
2015-03-03
20:00 to 2015-03-04
04:00.
Spectrogram
elaborated with Sonic
visualizer. Eight
hours across the 4005046801 event,
marked with a red arrow in the
centre of spectrogram. Schumann
resonances marked on rigt part.
Some spikes seem to precede the
event but they are present again
later.
Composite analysis with Station 04 - ROMAGNA
OBSERV. on top and Station
05 - NORTHERN
CROSS
RADIOTELESCOPE
on bottom. From
2015-03-03
20:00 to 2015-03-04
04:00.
Spectrogram elaborated with Sonic visualizer. Fifty
minutes across the 4005046801
event, with St.05
signal on top and
St.04 on bottom.
The 4005046801
event is
marked with
white arrows.
Here we see
clearly that
the spikes
received from
the station 05
are not
received from
the station
04, which is
located at the
same distance
from the
event. They, therefore,
are
probably
disturbances
of local
origin.
Return to OPERA
home page