FORET (BE)
Quarry blast29 January 2019
- Magnitude
- 1.3ML
- Depth
- 5.3km ± 3.7
- 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 1.3 |
| Epicentral coordinates | 50.579° N, 5.708° E Uncertainty ± 1.2 km |
| Depth of hypocenter | 5.3 ± 3.7 km |
| Event ID | ROB 7740 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-30 12:32:32 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
- 13
- Epicentral distance
- 10.2 – 115.5km
- 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 5.3 km. P wave: 13 measurements, root-mean-square deviation 0.32 s. S wave: 11 measurements, root-mean-square deviation 1.01 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)13 stations | ||||||
| STISart Tilman | 10.2 | 273 | 16:36:52.06+1.25 s | – | – | – |
| LCHLa Chartreuse | 10.2 | 311 | 16:36:52.31+1.50 s | 16:36:54.48+3.67 s | 2.17 | – |
| MEMHMembach | 21.6 | 81 | 16:36:54.22+3.41 s | 16:36:57.65+6.84 s | 3.43 | – |
| EBNEben-Emael | 24.4 | 355 | 16:36:55.09+4.28 s | 16:36:59.32+8.51 s | 4.23 | – |
| MRGMont Rigi | 27.1 | 106 | 16:36:55.24+4.43 s | 16:36:58.43+7.62 s | 3.19 | – |
| TNLTernell | 29.9 | 88 | 16:36:55.64+4.83 s | 16:37:00.26+9.45 s | 4.62 | – |
| HOUHouvegnez | 32.7 | 140 | 16:36:56.68+5.87 s | 16:37:00.54+9.73 s | 3.86 | – |
| CLAClavier | 33.9 | 238 | 16:36:56.22+5.41 s | 16:37:01.31+10.50 s | 5.09 | 17.9 |
| KLBKalborn | 60.4 | 152 | 16:37:01.01+10.20 s | 16:37:08.39+17.58 s | 7.38 | – |
| VIAVianden | 79.8 | 154 | 16:37:04.65+13.84 s | – | – | – |
| DOUDourbes | 95.8 | 236 | 16:37:07.15+16.34 s | 16:37:21.97+31.16 s | 14.82 | – |
| WLFWalferdange | 106.6 | 163 | 16:37:09.47+18.66 s | 16:37:22.18+31.37 s | 12.71 | – |
| SKQSteenkerque | 115.5 | 275 | 16:37:10.38+19.57 s | 16:37:23.79+32.98 s | 13.41 | – |
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