Event detail

Earthquake data

Event ID
knmi2019jxxm
Origin Time (UTC)
2019-05-22 03:49:00
Magnitude
3.4 (ML)
Location Analysis
Manual
Event Type
induced earthquake
Place
Westerwijtwerd
Latitude [°]
53.328 N
Longitude [°]
6.652 E
Depth [km]
3.0
Waveform Count
90
Max PGA [cm/s2]
32.925
Max PGV [cm/s]
1.037

Stations with peaks

PGA values [cm/s2]
from 0 to 10  unprocessed
from 0 to 10  from 0 to 10
from 10 to 20  from 10 to 20
from 20 to 50  from 20 to 50
from 50 to 100  from 50 to 100
from 100 up  from 100 up
Station (Net.Sta.) Lat [°] Lon [°] Elev [m] Station Name Epi. Dist. [km] Max PGA [cm/s2] Max PGV [cm/s] Detail
NL.G170 53.336 N 6.636 E 2 Middelstum 1.38 32.925  (HG1) 0.825  (HG1) streams
NL.BMD2 53.353 N 6.647 E 0 Middelstum 2 2.83 10.923  (HGN) 0.305  (HGE) streams
NL.BSTD 53.312 N 6.692 E 1 Stedum 3.19 16.755  (HGE) 0.470  (HGE) streams
NL.G210 53.313 N 6.594 E 2 Vroetende mol 4.20 24.952  (HG2) 1.037  (HG2) streams
NL.BWSE 53.344 N 6.710 E 1 Westeremden 4.26 3.698  (HGN) 0.169  (HGE) streams
NL.G180 53.331 N 6.722 E 2 Loppersum 4.64 7.942  (HG1) 0.205  (HG2) streams
NL.G270 53.283 N 6.628 E 2 Ellerhuizen 5.23 30.361  (HG2) 0.778  (HG2) streams
NL.BGAR 53.368 N 6.714 E 1 Garsthuizen 6.03 5.171  (HGN) 0.131  (HGE) streams
NL.G610 53.382 N 6.681 E 2 Zandeweer 6.30 5.247  (HG1) 0.098  (HG1) streams
NL.BLOP 53.334 N 6.747 E 1 Loppersum 6.32 2.436  (HGN) 0.050  (HGN) streams
NL.BWIN 53.311 N 6.748 E 1 Winneweer 6.67 5.762  (HGE) 0.173  (HGE) streams
NL.G120 53.370 N 6.571 E 2 Warffum 7.10 2.076  (HG1) 0.082  (HG1) streams
NL.G230 53.309 N 6.768 E 2 Garrelsweer 7.94 7.500  (HG2) 0.336  (HG2) streams
NL.G280 53.272 N 6.729 E 2 Woltersum 8.05 9.043  (HG2) 0.306  (HG2) streams
NL.G160 53.339 N 6.531 E 2 Winsum 8.09 4.022  (HG1) 0.192  (HG1) streams
NL.G090 53.388 N 6.725 E 2 Oldenzijl 8.21 6.065  (HG1) 0.125  (HG2) streams
NL.G140 53.359 N 6.771 E 2 t Zandt GN 8.59 3.221  (HG2) 0.102  (HG2) streams
NL.G260 53.282 N 6.546 E 2 Adorp 8.71 4.689  (HG2) 0.175  (HG1) streams
NL.G330 53.250 N 6.671 E 2 Garmerwolde 8.77 6.477  (HG1) 0.268  (HG2) streams
NL.BUHZ 53.407 N 6.673 E 2 Uithuizen 8.90 0.984  (HGE) 0.036  (HGN) streams
NL.BWIR 53.323 N 6.786 E 0 Wirdum 8.93 3.946  (HGE) 0.163  (HGE) streams
NL.BHKS 53.292 N 6.785 E 1 Hoeksmeer 9.70 4.396  (HGE) 0.223  (HGE) streams
NL.G040 53.415 N 6.675 E 2 Uithuizen 9.76 2.120  (HG1) 0.060  (HG1) streams
NL.G320 53.250 N 6.579 E 2 Groningen - Hornbach 9.95 11.988  (HG2) 0.344  (HG1) streams
NL.G070 53.395 N 6.546 E 2 Warffum 10.22 2.426  (HG1) 0.061  (HG1) streams
NL.G290 53.281 N 6.787 E 2 Overschild 10.36 3.137  (HG2) 0.164  (HG2) streams
NL.G680 53.235 N 6.635 E 2 Ruicherbrug 10.40 5.355  (HG1) 0.222  (HG1) streams
NL.G030 53.416 N 6.598 E 2 Usquert 10.42 1.207  (HG2) 0.048  (HG1) streams
NL.G750 53.308 N 6.488 E 2 Garnwerd 11.15 1.967  (HG2) 0.099  (HG2) streams
NL.G340 53.253 N 6.765 E 2 Overschild 11.27 8.657  (HG2) 0.369  (HG2) streams
NL.G780 53.365 N 6.489 E 2 Baflo 11.54 4.171  (HG1) 0.059  (HG1) streams
NL.BHAR 53.229 N 6.709 E 1 Harkstede 11.63 2.385  (HGE) 0.075  (HGN) streams
NL.BAPP 53.315 N 6.835 E 0 Appingedam 12.27 7.480  (HGE) 0.519  (HGE) streams
NL.G390 53.225 N 6.724 E 2 Woudbloemsloot 12.39 3.821  (HG1) 0.111  (HG1) streams
NL.G700 53.239 N 6.537 E 2 Groningen - Universiteitscomplex 12.55 4.560  (HG2) 0.213  (HG2) streams
NL.G690 53.213 N 6.644 E 2 Engelbert 12.82 6.724  (HG2) 0.135  (HG2) streams
NL.G440 53.204 N 6.684 E 2 Harkstede 13.93 3.095  (HG2) 0.068  (HG2) streams
NL.G720 53.246 N 6.479 E 2 Aduard 14.65 4.217  (HG2) 0.162  (HG2) streams
NL.G730 53.272 N 6.430 E 2 Den Ham 16.01 2.020  (HG2) 0.092  (HG2) streams
NL.G660 53.179 N 6.585 E 2 Haren 17.11 3.401  (HG2) 0.081  (HG2) streams
NL.BFB2 53.188 N 6.765 E 1 Froombosch2 17.35 1.652  (HGE) 0.041  (HGE) streams
NL.G760 53.351 N 6.390 E 2 Zuurdijk 17.57 1.060  (HG2) 0.037  (HG2) streams
NL.G250 53.308 N 6.943 E 2 Weiwerd 19.48 2.398  (HG2) 0.173  (HG2) streams
NL.BKMZ 53.290 N 6.319 E 2 Kommerzijl 22.53 0.436  (HGE) 0.024  (HGE) streams
NL.GK020 53.301 N 6.293 E 1 Lauwerzijl 24.06 0.334  (HG2) 0.017  (HG2) streams
144 ms

PGA regression (geo. mean of horizontals) in [cm/s2]

Notes on Ground Motion Prediction Equations (GMPEs):

  • GMPE v5 can only be shown at the location of the stations because it takes into account local site effects, which depend on the location.
  • GMPE v5 is computed combining 4 models (Lower, Central-lower, Central-upper and Upper) for the median predictions and 2 branches for the within-event variability (Phi).
  • GMPE v5 is computed using Rhypo, but plotted on Repi.
  • The standard deviation of GMPE v5 is composed by the variability at rock and the site-to-site variability, being combined in the most conservative way.

PGV regression (geo. mean of horizontals) in [cm/s]

To zoom in a chart, draw a rectangle with the mouse inside it.

The charts only display data within certain limits: 0.001 ≤ PGA [cm/s2] ≤ 5000
0.0001 ≤ PGV [cm/s] ≤ 500

PGA ShakeMap (max. of horizontals) in [%g]

PGV and PSA ShakeMaps (max. of horizontals) in [cm/s] and [%g]

Note: The inventory data of the accelerometers was fixed on December 2018. On basis of this new inventory, the strong motion values (before and after) and the ShakeMaps (comparison) has been reprocessed in March 2019.
Note: A new web service is available to download strong motion parameters from the RRSM system: http://rdsa.knmi.nl/odcws/rrsm/1/

Disclaimer The peak-motion and spectral values provided through the RRSM Interface result from fast high-quality automatic processing of acceleration waveforms, without any human interaction. Please help us clearing severe mistakes if any, by sending your feedback through this contact form .
RRSM Interface © 2015 KNMI / ODC / ETH