Table 1 Most significant Gaussian-like pressure features with \(\sigma\)= 8 min calculated for the three detector sensors.

From: Observation of Rayleigh-Lamb waves generated by the 2022 Hunga-Tonga volcanic eruption with the POLA detectors at Ny-Ålesund

POLA-01

POLA-03

POLA-04

Distance (km)

Velocity (m/s)

2022-01-15 16:34:04

2022-01-15 16:34:05

2022-01-15 16:33:42

13519

304.9 ± 0.1

2022-01-16 04:37:05

2022-01-16 04:37:40

2022-01-16 04:37:19

26521

302.2 ± 0.1

2022-01-17 16:48:17

2022-01-17 16:47:19

2022-01-17 16:47:53

66561

305.3 ± 0.1

2022-01-18 16:00:48

2022-01-18 15:59:26

2022-01-18 16:00:02

93599

310.4 ± 0.1

2022-01-19 04:28:40

2022-01-19 04:27:59

2022-01-19 04:29:53

106601

307.7 ± 0.1

  1. The total distance corresponding to each feature is reported and the average velocity is also calculated. The error does not include the uncertainty on the distance.