WAIMES (BE)

Known mine explosion6 September 2013

Magnitude
2.0ML
Depth
4.0km ± 4.9
Belgian time
12:05:182013-09-06
UTC
10:05:182013-09-06

Main parameters

Date and time2013-09-06 10:05:18 UTC
2013-09-06 12:05:18 Belgian time
MagnitudeML 2.0
Epicentral coordinates50.424° N, 6.111° E
Uncertainty ± 2.5 km
Depth of hypocenter4.0 ± 4.9 km
Event IDROB 4947

Data source : ROB (Royal Observatory of Belgium)
Last update : 2013-09-06 14:12:10 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
10.8 – 84.5km
Mean velocity, P wave
5.9km/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. Hypocenter at a depth of 4.0 km. P wave: 5 measurements, root-mean-square deviation 0.37 s. S wave: 5 measurements, root-mean-square deviation 0.46 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)5 stations
HOUHouvegnez10.822410:05:19.69+1.65 s10:05:21.02+2.98 s1.33–
MEMSMembach21.834110:05:22.01+3.97 s10:05:25.12+7.08 s3.11134.1
KLBKalborn36.018010:05:24.35+6.31 s10:05:29.03+10.99 s4.68–
LCHLa Chartreuse43.530410:05:24.85+6.81 s10:05:31.35+13.31 s6.50–
WLFWalferdange84.517810:05:32.81+14.77 s10:05:42.40+24.36 s9.59–
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