FRANC-WARET (BE)
Known mine explosion22 July 2015
- Magnitude
- 1.1ML
- Depth
- 4.4km ± 16.6
- Belgian time
- 13:41:552015-07-22
- UTC
- 11:41:552015-07-22
Main parameters
| Date and time | 2015-07-22 11:41:55 UTC 2015-07-22 13:41:55 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.508° N, 4.976° E Uncertainty ± 2.9 km |
| Depth of hypocenter | 4.4 ± 16.6 km |
| Event ID | ROB 5387 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-07-23 07:43:51 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
- 15.9 – 82.3km
- Mean velocity, P wave
- 5.7km/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 4.4 km. P wave: 10 measurements, root-mean-square deviation 0.35 s.
Station measurements
P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.
| km | ° | UTC | UTC | s | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)10 stations | ||||||
| GESGesves | 15.9 | 150 | 11:41:57.41+1.86 s | – | – | – |
| CLAClavier | 25.2 | 113 | 11:41:59.72+4.17 s | – | – | – |
| MRDMaredsous | 27.3 | 213 | 11:42:00.10+4.55 s | 11:42:04.29+8.74 s | 4.19 | 13.8 |
| STISart Tilman | 42.5 | 79 | 11:42:03.22+7.67 s | – | – | – |
| RCHRochefort | 43.2 | 155 | 11:42:02.80+7.25 s | – | – | – |
| LCHLa Chartreuse | 46.5 | 72 | 11:42:03.51+7.96 s | – | – | – |
| DOUDourbes | 53.4 | 211 | 11:42:04.99+9.44 s | – | – | – |
| SKQSteenkerque | 65.3 | 284 | 11:42:06.14+10.59 s | – | – | – |
| MRGMont Rigi | 78.0 | 89 | 11:42:08.90+13.35 s | 11:42:19.58+24.03 s | 10.68 | – |
| TNLTernell | 82.3 | 84 | 11:42:09.54+13.99 s | – | – | – |
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