CONSTHUM (LU)

Quarry blast8 May 2019

Magnitude
1.9ML
Depth
–
Belgian time
16:54:482019-05-08
UTC
14:54:482019-05-08

Main parameters

Date and time2019-05-08 14:54:48 UTC
2019-05-08 16:54:48 Belgian time
MagnitudeML 1.9
Epicentral coordinates49.980° N, 6.060° E
Uncertainty ± 2.9 km
Event IDROB 8130

Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-05-09 09:35:37 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
8
Epicentral distance
11.4 – 105.7km
Mean velocity, P wave
6.0km/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: 8 measurements, root-mean-square deviation 0.24 s.

Table of measurements

Station measurements

P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.

km°UTCUTCs
Belgian seismic network (Royal Observatory of Belgium)8 stations
VIAVianden11.411614:54:50.36+2.20 s––
KLBKalborn13.81514:54:50.72+2.56 s––
HOUHouvegnez41.835514:54:55.45+7.29 s––
MEMSMembach70.035714:55:00.37+12.21 s––
MEMHMembach70.035714:55:00.42+12.26 s14:55:08.54+20.38 s8.12
CLAClavier72.931214:55:00.82+12.66 s14:55:09.27+21.11 s8.45
GESGesves82.830314:55:02.60+14.44 s––
DOUDourbes105.727814:55:05.61+17.45 s14:55:18.94+30.78 s13.33
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