PHILIPPEVILLE (BE)
Quarry blast27 January 2021
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 15:49:432021-01-27
- UTC
- 14:49:432021-01-27
Main parameters
| Date and time | 2021-01-27 14:49:43 UTC 2021-01-27 15:49:43 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.228° N, 4.529° E Uncertainty ± 2.3 km |
| Event ID | ROB 12165 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-02-08 00:14:54 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
- 5
- Epicentral distance
- 15.5 – 113.8km
- Mean velocity, P wave
- 5.6km/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: 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 | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)5 stations | |||||
| DOUDourbes | 15.5 | 162 | 14:49:46.25+2.58 s | 14:49:49.08+5.41 s | 2.83 |
| MRDMaredsous | 18.9 | 64 | 14:49:46.74+3.07 s | 14:49:49.92+6.25 s | 3.18 |
| TGATangissart | 42.0 | 359 | 14:49:51.22+7.55 s | – | – |
| RCHRochefort | 50.5 | 99 | 14:49:52.49+8.82 s | 14:49:59.08+15.41 s | 6.59 |
| KLBKalborn | 113.8 | 97 | 14:50:03.70+20.03 s | – | – |
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