GLEES (DE)
Known mine explosion9 April 2015
- Magnitude
- 1.6ML
- Depth
- 5.6km ± 5.5
- Belgian time
- 15:32:242015-04-09
- UTC
- 13:32:242015-04-09
Main parameters
| Date and time | 2015-04-09 13:32:24 UTC 2015-04-09 15:32:24 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.434° N, 7.251° E Uncertainty ± 4.8 km |
| Depth of hypocenter | 5.6 ± 5.5 km |
| Event ID | ROB 5314 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-04-14 08:13:41 Belgian time
Location map
- Epicentre
- Station that recorded the event
Arrival times at the stations
Each station first records the P wave, the fastest, then the S wave. The farther a station is from the epicentre, the later the waves reach it and the wider the gap between the two.
- Stations
- 16
- Epicentral distance
- 81.3 – 210.8km
- Mean velocity, P wave
- 5.3km/s
- Mean velocity, S wave
- 3.2km/s
- P wave
- S wave
- Curve fitted to the measurements
Notes and method
Curves: travel time of a direct wave in a homogeneous medium. The velocity of each wave and an origin-time shift, common to both, are fitted to the measurements by least squares. Hypocenter at a depth of 5.6 km. P wave: 7 measurements, root-mean-square deviation 0.68 s. S wave: 8 measurements, root-mean-square deviation 0.71 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
Station measurements
P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.
| km | ° | UTC | UTC | s | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)16 stations | ||||||
| TNLTernell | 81.3 | 282 | 13:32:39.09+14.30 s | 13:32:48.92+24.13 s | 9.83 | – |
| MRGMont Rigi | 83.9 | 276 | 13:32:39.02+14.23 s | 13:32:48.01+23.22 s | 8.99 | 170.5 |
| HOUHouvegnez | 89.0 | 265 | – | 13:32:49.23+24.44 s | – | – |
| MEMSMembach | 90.1 | 283 | 13:32:39.63+14.84 s | 13:32:49.85+25.06 s | 10.22 | 239.1 |
| MEMHMembach | 90.1 | 283 | 13:32:39.63+14.84 s | 13:32:49.90+25.11 s | 10.27 | 33.2 |
| WLFWalferdange | 116.4 | 223 | 13:32:43.41+18.62 s | 13:32:59.33+34.54 s | 15.92 | 2145.4 |
| EBNEben-Emael | 118.4 | 291 | 13:32:45.32+20.53 s | 13:32:59.31+34.52 s | 13.99 | 643.1 |
| LCHLa Chartreuse | 119.3 | 282 | 13:32:45.74+20.95 s | 13:32:59.95+35.16 s | 14.21 | – |
| STISart Tilman | 120.8 | 279 | 13:32:45.70+20.91 s | 13:33:01.13+36.34 s | 15.43 | 96.9 |
| CLAClavier | 138.5 | 270 | 13:32:47.82+23.03 s | 13:33:04.72+39.93 s | 16.90 | 146.1 |
| RCHRochefort | 147.5 | 259 | 13:32:49.03+24.24 s | 13:33:07.08+42.29 s | 18.05 | – |
| GESGesves | 153.9 | 269 | 13:32:50.05+25.26 s | 13:33:08.74+43.95 s | 18.69 | 225.6 |
| MOLTMol | 175.5 | 300 | – | 13:33:15.75+50.96 s | – | – |
| MRDMaredsous | 177.2 | 266 | 13:32:53.19+28.40 s | 13:33:14.72+49.93 s | 21.53 | 124.1 |
| CSECourt-Saint-Etienne | 190.6 | 277 | 13:32:55.57+30.78 s | 13:33:18.65+53.86 s | 23.08 | 28.2 |
| SNFSeneffe | 210.8 | 273 | – | 13:33:23.11+58.32 s | – | 185.4 |