SPRIMONT (BE)
Quarry blast2 May 2017
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 15:05:592017-05-02
- UTC
- 13:05:592017-05-02
Main parameters
| Date and time | 2017-05-02 13:05:59 UTC 2017-05-02 15:05:59 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.488° N, 5.621° E Uncertainty ± 3.3 km |
| Event ID | ROB 5686 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-05-03 10:01:50 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
- 11
- Epicentral distance
- 11.3 – 110.6km
- Mean velocity, P wave
- 5.7km/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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 11 measurements, root-mean-square deviation 0.24 s. S wave: 5 measurements, root-mean-square deviation 0.22 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 | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)11 stations | |||||
| STISart Tilman | 11.3 | 339 | 13:06:01.71+1.85 s | – | – |
| LCHLa Chartreuse | 16.9 | 355 | 13:06:02.76+2.90 s | – | – |
| CLAClavier | 23.9 | 251 | 13:06:03.70+3.84 s | 13:06:06.57+6.71 s | 2.87 |
| MEMSMembach | 30.7 | 64 | 13:06:04.53+4.67 s | 13:06:08.99+9.13 s | 4.46 |
| MEMHMembach | 30.7 | 64 | 13:06:05.09+5.23 s | 13:06:08.99+9.13 s | 3.90 |
| HOUHouvegnez | 31.1 | 118 | 13:06:05.09+5.23 s | – | – |
| MRGMont Rigi | 32.3 | 85 | 13:06:05.26+5.40 s | 13:06:09.16+9.30 s | 3.90 |
| EBNEben-Emael | 34.6 | 7 | 13:06:05.47+5.61 s | – | – |
| GESGesves | 39.6 | 253 | 13:06:06.49+6.63 s | 13:06:11.96+12.10 s | 5.47 |
| DOUDourbes | 85.2 | 240 | 13:06:14.06+14.20 s | – | – |
| SKQSteenkerque | 110.6 | 280 | 13:06:19.34+19.48 s | – | – |