AMEL (BE)
Quarry blast27 March 2017
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 11:26:502017-03-27
- UTC
- 09:26:502017-03-27
Main parameters
| Date and time | 2017-03-27 09:26:50 UTC 2017-03-27 11:26:50 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.385° N, 6.218° E Uncertainty ± 7.1 km |
| Event ID | ROB 5658 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-03-27 11:42:04 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
- 15.6 – 46.8km
- Mean velocity, P wave
- 5.2km/s
- Mean velocity, S wave
- 3.4km/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 0.22 s. S wave: 4 measurements, root-mean-square deviation 0.29 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)4 stations | |||||
| HOUHouvegnez | 15.6 | 257 | 09:26:52.88+2.86 s | 09:26:54.00+3.98 s | 1.12 |
| MRGMont Rigi | 17.3 | 324 | 09:26:52.93+2.91 s | 09:26:54.08+4.06 s | 1.15 |
| MEMHMembach | 29.0 | 329 | 09:26:55.10+5.08 s | 09:26:58.10+8.08 s | 3.00 |
| MEMSMembach | 29.0 | 329 | 09:26:55.12+5.10 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 46.8 | 334 | 09:26:58.27+8.25 s | 09:27:03.56+13.54 s | 5.29 |