SAINT-HADELIN (BE)

Known mine explosion30 March 2016

Magnitude
1.7ML
Depth
–
Belgian time
14:32:372016-03-30
UTC
12:32:372016-03-30

Main parameters

Date and time2016-03-30 12:32:37 UTC
2016-03-30 14:32:37 Belgian time
MagnitudeML 1.7
Epicentral coordinates50.602° N, 5.720° E
Uncertainty ± 1.0 km
Event IDROB 5472

Data source : ROB (Royal Observatory of Belgium)
Last update : 2016-03-31 08:54:37 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
9.5 – 98.0km
Mean velocity, P wave
5.8km/s
Mean velocity, S wave
3.1km/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 0.14 s. S wave: 5 measurements, root-mean-square deviation 0.30 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°UTCUTCsnm
Belgian seismic network (Royal Observatory of Belgium)8 stations
LCHLa Chartreuse9.529512:32:39.17+1.39 s12:32:40.88+3.10 s1.71301.6
STISart Tilman11.325912:32:39.34+1.56 s–––
MEMSMembach20.58812:32:41.42+3.64 s12:32:44.30+6.52 s2.8866.1
EBNEben-Emael21.835212:32:41.61+3.83 s12:32:45.39+7.61 s3.7880.2
MRGMont Rigi27.111212:32:42.43+4.65 s12:32:46.22+8.44 s3.7915.4
CLAClavier36.023612:32:43.94+6.16 s12:32:49.40+11.62 s5.46–
MRDMaredsous75.424412:32:50.76+12.98 s–––
DOUDourbes98.023512:32:54.69+16.91 s–––
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