TROOZ (BE)
Quarry blast13 August 2020
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 13:37:422020-08-13
- UTC
- 11:37:422020-08-13
Main parameters
| Date and time | 2020-08-13 11:37:42 UTC 2020-08-13 13:37:42 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.562° N, 5.706° E Uncertainty ± 0.8 km |
| Event ID | ROB 10665 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-08-13 14:43:51 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
- 7
- Epicentral distance
- 11.5 – 58.8km
- Mean velocity, P wave
- 5.7km/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: 7 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 | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)5 stations | |||||
| LCHLa Chartreuse | 11.5 | 319 | 11:37:44.54+2.29 s | – | – |
| MEMHMembach | 22.1 | 76 | 11:37:46.36+4.11 s | 11:37:49.29+7.04 s | 2.93 |
| MEMSMembach | 22.1 | 76 | 11:37:46.41+4.16 s | – | – |
| MRGMont Rigi | 26.7 | 102 | 11:37:47.47+5.22 s | – | – |
| KLBKalborn | 58.8 | 151 | 11:37:52.82+10.57 s | 11:37:59.52+17.27 s | 6.70 |
| Dutch seismic network (KNMI)2 stations | |||||
| HGNHeimansgroeve | 27.6 | 35 | 11:37:47.21+4.96 s | – | – |
| VKBValkenburg | 34.4 | 9 | 11:37:48.35+6.10 s | – | – |
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