GELBRESSEE (BE)
Known mine explosion1 April 2016
- Magnitude
- 1.4ML
- Depth
- 3.2km ± 8.9
- Belgian time
- 14:22:302016-04-01
- UTC
- 12:22:302016-04-01
Main parameters
| Date and time | 2016-04-01 12:22:30 UTC 2016-04-01 14:22:30 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.502° N, 4.962° E Uncertainty ± 2.2 km |
| Depth of hypocenter | 3.2 ± 8.9 km |
| Event ID | ROB 5475 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2016-04-01 14:45:03 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
- 10
- Epicentral distance
- 25.9 – 93.2km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.3km/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 3.2 km. P wave: 10 measurements, root-mean-square deviation 0.47 s. S wave: 7 measurements, root-mean-square deviation 0.50 s.
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)10 stations | ||||||
| CLAClavier | 25.9 | 111 | 12:22:35.01+4.05 s | 12:22:37.83+6.87 s | 2.82 | 29.5 |
| MRDMaredsous | 26.2 | 212 | 12:22:35.66+4.70 s | 12:22:39.34+8.38 s | 3.68 | – |
| RCHRochefort | 43.0 | 154 | 12:22:38.06+7.10 s | 12:22:43.43+12.47 s | 5.37 | – |
| STISart Tilman | 43.6 | 78 | 12:22:39.21+8.25 s | – | – | – |
| DOUDourbes | 52.3 | 210 | 12:22:39.67+8.71 s | 12:22:46.64+15.68 s | 6.97 | 15.1 |
| SKQSteenkerque | 64.6 | 285 | 12:22:41.48+10.52 s | – | – | – |
| MEMSMembach | 75.2 | 81 | 12:22:43.74+12.78 s | 12:22:53.79+22.83 s | 10.05 | – |
| HOUHouvegnez | 75.9 | 102 | 12:22:43.12+12.16 s | 12:22:52.96+22.00 s | 9.84 | – |
| MRGMont Rigi | 79.0 | 89 | 12:22:44.44+13.48 s | 12:22:54.75+23.79 s | 10.31 | – |
| KLBKalborn | 93.2 | 118 | 12:22:47.48+16.52 s | – | – | – |