GESVES (BE)

Quarry blast24 March 2022

Magnitude
1.3ML
Depth
–
Belgian time
14:17:302022-03-24
UTC
13:17:302022-03-24

Main parameters

Date and time2022-03-24 13:17:30 UTC
2022-03-24 14:17:30 Belgian time
MagnitudeML 1.3
Epicentral coordinates50.441° N, 5.040° E
Uncertainty ± 3.2 km
Event IDROB 15725

Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-03-25 11:03:09 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
6
Epicentral distance
18.8 – 85.2km
Mean velocity, P wave
6.6km/s
Mean velocity, S wave
3.6km/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: 6 measurements, root-mean-square deviation 0.45 s. S wave: 5 measurements, root-mean-square deviation 0.54 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)5 stations
CLAClavier18.89713:17:34.56+3.96 s13:17:37.99+7.39 s3.43
MRDMaredsous24.823113:17:34.90+4.30 s13:17:39.07+8.47 s4.17
DOUDourbes49.922013:17:39.30+8.70 s13:17:45.29+14.69 s5.99
MRGMont Rigi73.98413:17:42.35+11.75 s––
KLBKalborn85.211613:17:44.96+14.36 s13:17:56.20+25.60 s11.24
Dutch seismic network (KNMI)1 station
TERZTerziet70.76013:17:43.02+12.42 s13:17:51.36+20.76 s8.34
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