ROBERTVILLE (BE)
Quarry blast29 May 2017
- Magnitude
- 1.2ML
- Depth
- 10.4km ± 2.3
- Belgian time
- 14:14:272017-05-29
- UTC
- 12:14:272017-05-29
Main parameters
| Date and time | 2017-05-29 12:14:27 UTC 2017-05-29 14:14:27 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.440° N, 6.139° E Uncertainty ± 1.9 km |
| Depth of hypocenter | 10.4 ± 2.3 km |
| Event ID | ROB 5727 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-05-29 15:06:24 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
- 9
- Epicentral distance
- 9.1 – 116.6km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.5km/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 10.4 km. P wave: 9 measurements, root-mean-square deviation 0.36 s. S wave: 5 measurements, root-mean-square deviation 0.13 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)9 stations | ||||||
| MRGMont Rigi | 9.1 | 330 | 12:14:29.34+2.29 s | 12:14:31.24+4.19 s | 1.90 | – |
| HOUHouvegnez | 13.5 | 225 | 12:14:29.42+2.37 s | – | – | – |
| MEMHMembach | 20.9 | 334 | 12:14:31.53+4.48 s | 12:14:33.97+6.92 s | 2.44 | – |
| KLBKalborn | 37.9 | 183 | 12:14:34.02+6.97 s | 12:14:38.37+11.32 s | 4.35 | – |
| STISart Tilman | 43.8 | 292 | 12:14:34.20+7.15 s | – | – | – |
| CLAClavier | 59.5 | 268 | 12:14:37.31+10.26 s | 12:14:44.54+17.49 s | 7.23 | 7.4 |
| RCHRochefort | 72.3 | 244 | 12:14:39.38+12.33 s | – | – | – |
| GESGesves | 75.0 | 266 | 12:14:39.32+12.27 s | – | – | – |
| DOUDourbes | 116.6 | 251 | 12:14:46.97+19.92 s | 12:15:00.47+33.42 s | 13.50 | – |
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