LA ROCHE-EN-ARDENNE (BE)
Known mine explosion4 June 2015
- Magnitude
- 1.0ML
- Depth
- 10.0km ± 8.2
- Belgian time
- 13:32:372015-06-04
- UTC
- 11:32:372015-06-04
Main parameters
| Date and time | 2015-06-04 11:32:37 UTC 2015-06-04 13:32:37 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.201° N, 5.603° E Uncertainty ± 1.7 km |
| Depth of hypocenter | 10.0 ± 8.2 km |
| Event ID | ROB 5337 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-06-04 14:55:29 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
- 8
- Epicentral distance
- 27.3 – 73.0km
- Mean velocity, P wave
- 5.7km/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 10.0 km. P wave: 8 measurements, root-mean-square deviation 0.45 s. S wave: 5 measurements, root-mean-square deviation 0.32 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)8 stations | ||||||
| RCHRochefort | 27.3 | 259 | 11:32:42.40+4.73 s | 11:32:45.78+8.11 s | 3.38 | – |
| CLAClavier | 32.4 | 319 | 11:32:43.50+5.83 s | 11:32:47.77+10.10 s | 4.27 | – |
| KLBKalborn | 37.9 | 107 | 11:32:44.59+6.92 s | 11:32:49.04+11.37 s | 4.45 | – |
| GESGesves | 42.1 | 299 | 11:32:43.99+6.32 s | – | – | – |
| STISart Tilman | 42.6 | 356 | 11:32:45.33+7.66 s | – | – | – |
| MRGMont Rigi | 48.1 | 44 | 11:32:46.17+8.50 s | – | – | – |
| MEMSMembach | 53.8 | 32 | 11:32:46.39+8.72 s | 11:32:53.96+16.29 s | 7.57 | – |
| DOUDourbes | 73.0 | 261 | 11:32:49.80+12.13 s | 11:33:00.45+22.78 s | 10.65 | 3.9 |