San Benedetto del Tronto, Italy
Dist to Epi: 60 km
"San Benedetto del Tronto. Hotel Holiday. The wall inside the hotel is demaged. "
San Benedetto del Tronto, Italy
Dist to Epi: 60 km
"San Benedetto del Tronto. Hotel Holiday. The wall inside the hotel is demaged. "
Chieti, Italy
Dist to Epi: 87 km
"Strong shake of 10 seconds with a notable aftershocks in Chieti...so far"
Grenoble, France
Dist to Epi: 664 km
"Deviation of an electron beam observed in the particle accelerator ESRF/synchrotron in Grenoble and caused by the Amatrice, Italy earthquake.
The figure represents variation of the electron beam frequency. We observe a first event at 1:38 UTC (main shock) and a second at 2:35 UTC (M5.5 aftershock).
While passing through the accelerator, seismic waves slightly modify the size of the 844m-wide ring in which electrons are travelling. As a consequence, the frequency of the electrons beams has to be ajusted.
A variation of 1 Hz of the beam frequency corresponds to a change of 2 micrometers of the circonference of the ring.
Credits: Jean Marc Koch. European Synchrotron Radiation Facility
"
