VEZIN (BE)

Known mine explosion19 September 2008

Magnitude
0.8ML
Depth
1.8km ± 7.0
Belgian time
13:13:202008-09-19
UTC
11:13:202008-09-19

Main parameters

Date and time2008-09-19 11:13:20 UTC
2008-09-19 13:13:20 Belgian time
MagnitudeML 0.8
Epicentral coordinates50.500° N, 5.003° E
Uncertainty ± 1.6 km
Depth of hypocenter1.8 ± 7.0 km
Event IDROB 3742

Data source : ROB (Royal Observatory of Belgium)
Last update : 2012-04-27 16:33:58 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
7
Epicentral distance
14.1 – 90.5km
Mean velocity, P wave
5.6km/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. Hypocenter at a depth of 1.8 km. P wave: 7 measurements, root-mean-square deviation 0.35 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)7 stations
GESGesves14.115511:13:22.83+2.35 s–––
CLAClavier23.111311:13:24.79+4.31 s11:13:27.35+6.87 s2.566.7
MRDMaredsous27.721711:13:25.21+4.73 s–––
OT3OT3-Dion-le-Mont33.231011:13:26.30+5.82 s11:13:30.63+10.15 s4.33–
SNFSeneffe51.027211:13:28.68+8.20 s–––
DOUDourbes53.621311:13:30.29+9.81 s11:13:36.25+15.77 s5.96–
KLBKalborn90.511911:13:36.69+16.21 s–––
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