Event detail

Earthquake data

Event ID
knmi2020ntlk
Origin Time (UTC)
2020-07-14 15:18:47
Magnitude
2.7 (ML)
Location Analysis
Manual
Event Type
induced earthquake
Place
Loppersum
Latitude [°]
53.342 N
Longitude [°]
6.729 E
Depth [km]
3.0
Waveform Count
82
Max PGA [cm/s2]
44.780
Max PGV [cm/s]
0.719

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.BWSE 53.344 N 6.710 E 1 Westeremden 1.30 44.780  (HGE) 0.719  (HGE) streams
NL.G180 53.331 N 6.722 E 2 Loppersum 1.35 37.258  (HG1) 0.315  (HG2) streams
NL.BLOP 53.334 N 6.747 E 1 Loppersum 1.48 28.127  (HGN) 0.500  (HGN) streams
NL.BGAR 53.368 N 6.714 E 1 Garsthuizen 3.05 10.267  (HGN) 0.169  (HGN) streams
NL.G140 53.359 N 6.771 E 2 t Zandt GN 3.33 16.846  (HG2) 0.396  (HG2) streams
NL.G130 53.349 N 6.669 E 2 Middelstum 4.09 8.169  (HG2) 0.202  (HG2) streams
NL.BSTD 53.312 N 6.692 E 1 Stedum 4.11 7.119  (00.HGE) 0.210  (00.HGE) streams
NL.BWIR 53.323 N 6.786 E 0 Wirdum 4.36 5.668  (HGE) 0.189  (HGE) streams
NL.G230 53.309 N 6.768 E 2 Garrelsweer 4.43 3.842  (HG2) 0.182  (HG2) streams
NL.G220 53.310 N 6.678 E 2 Stedum 4.90 11.345  (HG2) 0.231  (HG2) streams
NL.G090 53.388 N 6.725 E 2 Oldenzijl 5.10 19.865  (HG2) 0.260  (HG2) streams
NL.G610 53.382 N 6.681 E 2 Zandeweer 5.44 4.461  (HG1) 0.087  (HG1) streams
NL.BOWW 53.341 N 6.812 E 1 Oosterwijterd 5.55 6.053  (HGN) 0.170  (HGN) streams
NL.BMD2 53.353 N 6.647 E 0 Middelstum 2 5.57 3.673  (HGE) 0.108  (HGE) streams
NL.G170 53.336 N 6.636 E 2 Middelstum 6.19 4.257  (HG2) 0.103  (HG2) streams
NL.G100 53.378 N 6.804 E 2 Godlinze 6.44 5.344  (HG1) 0.137  (HG1) streams
NL.G670 53.321 N 6.823 E 2 Appingedam 6.64 3.472  (HG1) 0.075  (HG1) streams
NL.BHKS 53.292 N 6.785 E 1 Hoeksmeer 6.69 1.794  (HGE) 0.065  (HGE) streams
NL.G280 53.272 N 6.729 E 2 Woltersum 7.76 2.158  (HG1) 0.076  (HG2) streams
NL.G080 53.395 N 6.644 E 2 Rottum 8.20 1.901  (HG2) 0.053  (HG2) streams
NL.G040 53.415 N 6.675 E 2 Uithuizen 8.85 2.330  (HG2) 0.044  (HG1) streams
NL.G620 53.387 N 6.842 E 2 Spijk 9.01 1.573  (HG2) 0.070  (HG2) streams
NL.G270 53.283 N 6.628 E 2 Ellerhuizen 9.36 1.792  (HG1) 0.044  (HG1) streams
NL.G210 53.313 N 6.594 E 2 Vroetende mol 9.53 1.983  (HG2) 0.055  (HG2) streams
NL.G240 53.290 N 6.856 E 2 Steendam 10.24 1.950  (HG2) 0.095  (HG2) streams
NL.G120 53.370 N 6.571 E 2 Warffum 10.91 1.972  (HG1) 0.068  (HG2) streams
NL.G110 53.367 N 6.889 E 2 Holwierde 10.98 2.201  (HG2) 0.081  (HG2) streams
NL.G200 53.335 N 6.895 E 2 Biessum 11.06 3.271  (HG1) 0.079  (HG2) streams
NL.G010 53.443 N 6.731 E 2 Uithuizermeeden 11.18 4.467  (HG2) 0.064  (HG1) streams
NL.G030 53.416 N 6.598 E 2 Usquert 11.98 2.123  (HG2) 0.055  (HG2) streams
NL.BHAR 53.229 N 6.709 E 1 Harkstede 12.62 0.677  (HGN) 0.014  (HGN) streams
NL.G020 53.449 N 6.806 E 2 Eemshaven 12.94 2.229  (HG2) 0.053  (HG1) streams
NL.G390 53.225 N 6.724 E 2 Woudbloemsloot 12.99 1.549  (HG2) 0.025  (HG2) streams
NL.G300 53.279 N 6.895 E 2 Meedhuizen 13.06 4.769  (HG2) 0.056  (HG2) streams
NL.G350 53.255 N 6.862 E 2 Sidderburen 13.11 1.448  (HG2) 0.037  (HG2) streams
NL.G160 53.339 N 6.531 E 2 Winsum 13.12 2.325  (HG2) 0.110  (HG2) streams
NL.G250 53.308 N 6.943 E 2 Weiwerd 14.72 1.701  (HG1) 0.045  (HG2) streams
NL.BFB2 53.188 N 6.765 E 1 Froombosch2 17.35 0.773  (HGE) 0.017  (HGE) streams
NL.BKMZ 53.290 N 6.319 E 2 Kommerzijl 27.85 0.157  (HGE) 0.006  (HGE) streams
NL.GK020 53.301 N 6.293 E 1 Lauwerzijl 29.34 0.204  (HG2) 0.007  (HG2) streams
NL.G530 53.167 N 7.080 E 2 Beerta 30.38 13.340  (HG2) 0.409  (HG2) streams
75 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