Table 1.
Parameters of the Beirut explosion signatures as derived from PMCC analysis of different IMS arrays.
| Parameter | I48TN | I26DE | I17CI | I42PT | I11CV |
|---|---|---|---|---|---|
| Distance (km) | 2455 | 2454 | 5130 | 5431 | 6240 |
| Back-azimuth () | 88.4 (81.3–93.1) | 126.5 (115.2–147.4) | 47.2 (44.2–55.4) | 77.9 (67.6–86.4) | 60.7 (53.3–64.3) |
| Apparent speed (m/s) | 357 (340–386) | 350 (318–461) | 341 (301–367) | 341 (308–391) | 355 (305–394) |
| Frequency (Hz) | 2.57 (0.20–6.35) | 0.70 (0.10–2.53) | 0.37 (0.10–1.60) | 0.66 (0.36–1.15) | 0.84 (0.13–1.60) |
| Number of pixels (#) | 7544 | 2802 | 944 | 62 | 58 |
| Signal start (UTC) | 17:06:17 | 17:11:19 | 19:44:06 | 20:20:42 | 20:44:56 |
| Signal end (UTC) | 17:27:34 | 17:28:46 | 19:57:35 | 20:24:02 | 20:56:17 |
| Actual celerity (m/s) | 294–347 | 291–333 | 296–310 | 287–290 | 299–309 |
| Predicted celerity (m/s) | 301 | 301 | 328 | 305 | 307 |
The mean and the range (in parentheses) are provided where parameters vary over pixels.