AYENEUX (BE)

Known mine explosion18 January 2016

Magnitude
1.4ML
Depth
4.8km ± 4.7
Belgian time
13:56:022016-01-18
UTC
12:56:022016-01-18

Main parameters

Date and time2016-01-18 12:56:02 UTC
2016-01-18 13:56:02 Belgian time
MagnitudeML 1.4
Epicentral coordinates50.601° N, 5.715° E
Uncertainty ± 1.3 km
Depth of hypocenter4.8 ± 4.7 km
Event IDROB 5441

Data source : ROB (Royal Observatory of Belgium)
Last update : 2016-01-18 14:14:55 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
10
Epicentral distance
9.2 – 97.6km
Mean velocity, P wave
5.9km/s
Mean velocity, S wave
3.3km/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 4.8 km. P wave: 10 measurements, root-mean-square deviation 0.25 s. S wave: 6 measurements, root-mean-square deviation 0.49 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)10 stations
LCHLa Chartreuse9.229712:56:04.34+1.55 s12:56:05.99+3.20 s1.65–
STISart Tilman10.925912:56:04.49+1.70 s–––
MEMSMembach20.98812:56:06.52+3.73 s–––
EBNEben-Emael21.935312:56:06.73+3.94 s–––
MRGMont Rigi27.411112:56:07.53+4.74 s12:56:11.34+8.55 s3.81–
TNLTernell29.49312:56:07.93+5.14 s–––
HOUHouvegnez34.314312:56:09.17+6.38 s12:56:12.76+9.97 s3.59–
CLAClavier35.623612:56:08.79+6.00 s12:56:14.12+11.33 s5.3318.8
RCHRochefort60.621512:56:12.65+9.86 s12:56:20.15+17.36 s7.50–
DOUDourbes97.623512:56:19.41+16.62 s12:56:32.50+29.71 s13.09–
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