POULSEUR (BE)
Known mine explosion29 September 2015
- Magnitude
- 1.6ML
- Depth
- 9.2km ± 6.6
- Belgian time
- 16:00:312015-09-29
- UTC
- 14:00:312015-09-29
Main parameters
| Date and time | 2015-09-29 14:00:31 UTC 2015-09-29 16:00:31 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.508° N, 5.587° E Uncertainty ± 2.0 km |
| Depth of hypocenter | 9.2 ± 6.6 km |
| Event ID | ROB 5411 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-09-30 09:11:32 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
- 7
- Epicentral distance
- 8.5 – 46.9km
- 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 9.2 km. P wave: 7 measurements, root-mean-square deviation 0.41 s. S wave: 5 measurements, root-mean-square deviation 0.29 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)7 stations | ||||||
| STISart Tilman | 8.5 | 349 | 14:00:32.45+1.28 s | – | – | – |
| LCHLa Chartreuse | 14.6 | 3 | 14:00:34.31+3.14 s | – | – | – |
| CLAClavier | 22.5 | 244 | 14:00:35.03+3.86 s | 14:00:38.26+7.09 s | 3.23 | 46.0 |
| MEMHMembach | 32.0 | 69 | 14:00:36.93+5.76 s | 14:00:41.28+10.11 s | 4.35 | – |
| HOUHouvegnez | 34.3 | 120 | 14:00:37.05+5.88 s | 14:00:41.56+10.39 s | 4.51 | – |
| GESGesves | 38.1 | 249 | 14:00:38.09+6.92 s | 14:00:43.38+12.21 s | 5.29 | – |
| RCHRochefort | 46.9 | 213 | 14:00:38.54+7.37 s | 14:00:45.26+14.09 s | 6.72 | – |