Events on 2002, August 23

Figure showing 24 hours of automatically analyzed infrasound data. An event is triggered when its Fisher ratio is higher than 15. These are indicated with the red circles. The corresponding apparent sound velocity and back azimuth are given by the purple circle. Detailed information on each event is listed below.

Local time: 0.891 hours Fisher ratio: 22.0 Apparent sound velocity: 327.0 m/s Back azimuth: 205.7 deg
Local time: 1.578 hours Fisher ratio: 15.3 Apparent sound velocity: 296.8 m/s Back azimuth: 91.7 deg
Local time: 2.015 hours Fisher ratio: 26.0 Apparent sound velocity: 300.2 m/s Back azimuth: 230.0 deg
Local time: 2.616 hours Fisher ratio: 24.6 Apparent sound velocity: 312.1 m/s Back azimuth: 99.2 deg
Local time: 2.751 hours Fisher ratio: 18.7 Apparent sound velocity: 336.1 m/s Back azimuth: 84.1 deg
Local time: 3.158 hours Fisher ratio: 37.0 Apparent sound velocity: 308.4 m/s Back azimuth: 77.3 deg
Local time: 3.284 hours Fisher ratio: 21.3 Apparent sound velocity: 413.4 m/s Back azimuth: 62.4 deg
Local time: 4.470 hours Fisher ratio: 16.8 Apparent sound velocity: 336.1 m/s Back azimuth: 84.1 deg
Local time: 4.583 hours Fisher ratio: 15.3 Apparent sound velocity: 336.1 m/s Back azimuth: 84.1 deg
Local time: 4.685 hours Fisher ratio: 15.1 Apparent sound velocity: 314.7 m/s Back azimuth: 95.5 deg
Local time: 4.778 hours Fisher ratio: 21.6 Apparent sound velocity: 416.4 m/s Back azimuth: 77.7 deg
Local time: 4.842 hours Fisher ratio: 29.2 Apparent sound velocity: 308.4 m/s Back azimuth: 77.3 deg
Local time: 5.072 hours Fisher ratio: 17.3 Apparent sound velocity: 344.3 m/s Back azimuth: 71.6 deg
Local time: 5.186 hours Fisher ratio: 17.1 Apparent sound velocity: 327.0 m/s Back azimuth: 64.3 deg
Local time: 5.237 hours Fisher ratio: 38.2 Apparent sound velocity: 328.5 m/s Back azimuth: 76.4 deg
Local time: 5.547 hours Fisher ratio: 16.7 Apparent sound velocity: 316.0 m/s Back azimuth: 69.2 deg
Local time: 7.588 hours Fisher ratio: 19.3 Apparent sound velocity: 416.4 m/s Back azimuth: 192.3 deg
Local time: 9.090 hours Fisher ratio: 15.7 Apparent sound velocity: 425.7 m/s Back azimuth: 145.6 deg
Local time: 10.471 hours Fisher ratio: 46.9 Apparent sound velocity: 336.1 m/s Back azimuth: 95.9 deg
Local time: 10.994 hours Fisher ratio: 16.6 Apparent sound velocity: 316.0 m/s Back azimuth: 69.2 deg
Local time: 11.498 hours Fisher ratio: 49.9 Apparent sound velocity: 308.4 m/s Back azimuth: 114.1 deg
Local time: 12.231 hours Fisher ratio: 96.1 Apparent sound velocity: 336.1 m/s Back azimuth: 112.2 deg
Local time: 12.463 hours Fisher ratio: 193.8 Apparent sound velocity: 328.5 m/s Back azimuth: 140.4 deg
Local time: 12.483 hours Fisher ratio: 50.8 Apparent sound velocity: 314.7 m/s Back azimuth: 137.6 deg
Local time: 13.078 hours Fisher ratio: 55.3 Apparent sound velocity: 324.2 m/s Back azimuth: 124.2 deg
Local time: 13.281 hours Fisher ratio: 35.7 Apparent sound velocity: 328.5 m/s Back azimuth: 140.4 deg
Local time: 14.059 hours Fisher ratio: 15.8 Apparent sound velocity: 314.7 m/s Back azimuth: 137.6 deg
Local time: 16.471 hours Fisher ratio: 25.4 Apparent sound velocity: 330.0 m/s Back azimuth: 135.0 deg
Local time: 16.574 hours Fisher ratio: 42.0 Apparent sound velocity: 327.0 m/s Back azimuth: 115.7 deg
Local time: 17.279 hours Fisher ratio: 20.8 Apparent sound velocity: 324.2 m/s Back azimuth: 145.8 deg
Local time: 17.302 hours Fisher ratio: 91.1 Apparent sound velocity: 328.5 m/s Back azimuth: 140.4 deg
Local time: 17.446 hours Fisher ratio: 39.2 Apparent sound velocity: 324.2 m/s Back azimuth: 145.8 deg
Local time: 17.604 hours Fisher ratio: 80.0 Apparent sound velocity: 296.8 m/s Back azimuth: 144.9 deg
Local time: 17.858 hours Fisher ratio: 21.2 Apparent sound velocity: 428.9 m/s Back azimuth: 246.8 deg
Local time: 17.874 hours Fisher ratio: 28.9 Apparent sound velocity: 336.1 m/s Back azimuth: 247.8 deg
Local time: 21.075 hours Fisher ratio: 31.2 Apparent sound velocity: 347.8 m/s Back azimuth: 332.5 deg
Local time: 21.433 hours Fisher ratio: 16.1 Apparent sound velocity: 312.1 m/s Back azimuth: 307.2 deg
Local time: 22.175 hours Fisher ratio: 19.6 Apparent sound velocity: 300.2 m/s Back azimuth: 230.0 deg
Local time: 22.877 hours Fisher ratio: 19.4 Apparent sound velocity: 351.3 m/s Back azimuth: 255.5 deg
Local time: 23.023 hours Fisher ratio: 15.2 Apparent sound velocity: 295.8 m/s Back azimuth: 95.2 deg
Local time: 23.997 hours Fisher ratio: 252.8 Apparent sound velocity: 315.1 m/s Back azimuth: 70.2 deg