TROOZ (BE)
Quarry blast29 January 2019
- Magnitude
- 1.9ML
- Depth
- –
- Belgian time
- 17:36:502019-01-29
- UTC
- 16:36:502019-01-29
Main parameters
| Date and time | 2019-01-29 16:36:50 UTC 2019-01-29 17:36:50 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.559° N, 5.725° E Uncertainty ± 0.9 km |
| Event ID | ROB 7770 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-02-01 11:36:41 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
- 16
- Epicentral distance
- 12.7 – 116.9km
- 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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 16 measurements, root-mean-square deviation 0.61 s. S wave: 15 measurements, root-mean-square deviation 0.82 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)14 stations | |||||
| LCHLa Chartreuse | 12.7 | 315 | 16:36:52.46+1.74 s | 16:36:54.69+3.97 s | 2.23 |
| MEMSMembach | 20.9 | 74 | 16:36:54.32+3.60 s | 16:36:57.72+7.00 s | 3.40 |
| MEMHMembach | 20.9 | 74 | 16:36:54.32+3.60 s | 16:36:57.63+6.91 s | 3.31 |
| MRGMont Rigi | 25.3 | 102 | 16:36:55.24+4.52 s | 16:36:58.65+7.93 s | 3.41 |
| EBNEben-Emael | 26.7 | 353 | 16:36:54.99+4.27 s | 16:36:59.27+8.55 s | 4.28 |
| HOUHouvegnez | 30.2 | 139 | 16:36:56.63+5.91 s | 16:37:00.59+9.87 s | 3.96 |
| CLAClavier | 33.8 | 243 | 16:36:56.36+5.64 s | 16:37:00.47+9.75 s | 4.11 |
| GESGesves | 49.3 | 247 | 16:36:59.38+8.66 s | 16:37:06.26+15.54 s | 6.88 |
| RCHRochefort | 57.2 | 219 | 16:37:00.36+9.64 s | 16:37:07.40+16.68 s | 7.04 |
| KLBKalborn | 57.9 | 152 | 16:37:00.56+9.84 s | 16:37:08.48+17.76 s | 7.92 |
| DSLBDessel | 88.2 | 328 | 16:37:07.69+16.97 s | 16:37:17.04+26.32 s | 9.35 |
| DOUDourbes | 95.6 | 238 | 16:37:07.07+16.35 s | 16:37:22.65+31.93 s | 15.58 |
| UCCBUccle | 100.1 | 286 | 16:37:09.13+18.41 s | – | – |
| SKQSteenkerque | 116.9 | 276 | 16:37:10.25+19.53 s | 16:37:25.90+35.18 s | 15.65 |
| Dutch seismic network (KNMI)2 stations | |||||
| HGNHeimansgroeve | 27.1 | 32 | 16:36:55.17+4.45 s | 16:36:59.18+8.46 s | 4.01 |
| VKBValkenburg | 34.6 | 7 | 16:36:56.04+5.32 s | 16:37:01.83+11.11 s | 5.79 |