Processing and Communication Delays in EWS: On the Performance of the Earthcloud Prototype

Table 1

Technical specifications of the geophones used.

Name	EG-4.5-II
Natural frequency	4.5 ± 10% Hz
Damping	0.6 ± 5%
Coil resistance	375 ± 5% 1 Ω
Open circuit sensitivity (V/m/s)	28.8 ± 5%
Harmonic distortion	0.2%
Typical spurious Frequency	150 Hz
Moving mass	11.3 g
Max. coil excursion p-p	4 mm
Element diameter	25.4 mm
Element height	36 mm
Element weight	86 g
Operating Temperature	-40°C to +100°C