DEUX-ACREN (BE)
Quarry blast26 July 2019
- Magnitude
- 1.0ML
- Depth
- 1.3km ± 18.7
- Belgian time
- 11:46:002019-07-26
- UTC
- 09:46:002019-07-26
Main parameters
| Date and time | 2019-07-26 09:46:00 UTC 2019-07-26 11:46:00 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.714° N, 3.855° E Uncertainty ± 15.2 km |
| Depth of hypocenter | 1.3 ± 18.7 km |
| Event ID | ROB 8430 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-07-26 12:17:43 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
- 6
- Epicentral distance
- 0.9 – 94.7km
- Mean velocity, P wave
- 5.1km/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 1.3 km. P wave: 6 measurements, root-mean-square deviation 0.35 s. S wave: 4 measurements, root-mean-square deviation 0.20 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)6 stations | ||||||
| LESLessines | 0.9 | 247 | 09:46:00.29+0.05 s | 09:46:00.52+0.28 s | 0.23 | – |
| SKQSteenkerque | 17.5 | 114 | 09:46:02.90+2.66 s | 09:46:04.89+4.65 s | 1.99 | – |
| RQRRonquières | 28.8 | 115 | 09:46:04.70+4.46 s | – | – | – |
| BRQBracquegnies | 32.7 | 142 | 09:46:05.93+5.69 s | – | – | – |
| DOUDourbes | 86.7 | 142 | 09:46:17.13+16.89 s | 09:46:25.74+25.50 s | 8.61 | 3.4 |
| GESGesves | 94.7 | 112 | 09:46:18.16+17.92 s | 09:46:28.23+27.99 s | 10.07 | – |
Did you feel an earthquake?The inquiry takes just a few minutes. Every report helps seismologists assess the effects of the earthquake.
Take the inquiry