Table 1 Summary of seismo-acoustic signal detections for the three observed acoustic phases.

From: Rich observations of local and regional infrasound phases made by the AlpArray seismic network after refinery explosion

 

Dist. range/km

Cel. range/m s−1

Mean cel. ± Std./m s−1

Stations

AlpArray

Phase 1

0–200

310–340

332.2 ± 8.7

40

23

Phase 2

150–325

270–300

291.7 ± 5.3

25

3

Phase 3

250–350

240–260

250.1 ± 5.7

19

9

   

Total

84

35

  1. Distance range marks distances to the source in which the respective phase was observed. Celerity (cel.) range states the respective celerities that were used to search for acoustic arrivals. Mean and standard deviation of celerities are calculated for all detected arrivals with signal-to-noise ratio higher than three. The columns “Stations” and “AlpArray” denote on how many stations the signal-to-noise ratio was measured higher than three (total number of stations and number of temporary AlpArray stations therein, respectively).
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