Earthquake Information
 Origin Time
2021-02-09 07:30:34 (GMT)
 Magnitude
M 4.0
 Latitude
37.7910° N
 Longitude
26.4397° E
 Focal Depth
21 km
 # of Arrivals
45
 Location 33.3 km NE of Ikaria
47.4 km W of Samos
238.5 km E of Athens
 Solution type
manual
 Files / Links
QuakeML  GSE2.0  Alert  .phi  ShakeMap  Foc.Mech.
  

  Focal Mechanism

Foc.Mech. Strike (°) Dip (°) Rake (°) Seism.Mom. (dyn*cm)
14369-30 2.40E+22

Latitude (°N) Longitude (°E) Depth (km) Magnitude Mw
37.792226.426415.04.2

Source parameters determination

Click here for detailed focal mechanism solution


  Intensity map


PGA
PGV
MI

Download files: Google Earth (.kmz), Measurements (.csv)


  Station data

StationNetDist.(km)Azim.PhaseArr.TimeRes.Wgt.Type
SAM2HL15.5103 P07:30:39.13 -0.41.0M
SAM2HL15.5103 S07:30:42.09 -0.81.0M
KRL1HI23.4 89 P07:30:40.41 0.11.0M
KRL1HI23.4 89 S07:30:44.12 -0.31.0M
SMGHL36.3105 P07:30:42.60 0.51.0M
SMGHL36.3105 S07:30:47.54 0.01.0M
SAM1HL51.7 93 P07:30:44.91 0.51.0M
SAM1HL51.7 93 S07:30:51.78 0.31.0M
CHOSHT74.5333 P07:30:48.06 0.21.0M
CHOSHT74.5333 S07:30:57.58 -0.11.0M
APEHL113.7226 P07:30:54.38 0.51.0M
APEHL113.7226 S07:31:08.41 0.21.0M
TNSAHL115.8256 P07:30:54.33 0.21.0M
TNSAHL115.8256 S07:31:08.88 0.21.0M
THNOHC125.6263 P07:30:55.76 0.11.0M
THNOHC125.6263 S07:31:11.68 0.31.0M
CMBOHT173.1212 P07:31:01.97 0.11.0M
CMBOHT173.1212 S07:31:21.68 -0.61.0M
STFNHA257.4280 P07:31:13.38 0.51.0M
MDRAHA262.5277 P07:31:13.72 0.21.0M
MDRAHA262.5277 S07:31:42.11 -0.61.0M
VILLHA277.2279 P07:31:15.66 0.31.0M
STIAHC289.6186 P07:31:17.10 0.41.0M
STIAHC289.6186 S07:31:48.18 -0.31.0M
KNSSHC298.5202 P07:31:18.34 0.41.0M
KNSSHC298.5202 S07:31:50.45 -0.11.0M
ZKRHL298.3184 P07:31:18.10 0.21.0M
ZKRHL298.3184 S07:31:50.30 -0.21.0M
ACORHA313.7272 P07:31:20.21 0.11.0M
LTKHP305.7275 P07:31:19.11 0.11.0M
LTKHP305.7275 S07:31:52.05 -0.51.0M
SMTHHL308.1345 P07:31:18.90 -0.31.0M
NEOHL326.6301 P07:31:21.79 0.21.0M
PFKSHC317.6196 P07:31:20.49 0.01.0M
PFKSHC317.6196 S07:31:54.64 -0.41.0M
PAIGHT337.8315 P07:31:23.25 0.21.0M
IMMVHL339.5220 P07:31:23.66 0.41.0M
IMMVHL339.5220 S07:31:59.49 -0.41.0M
THASHT346.4335 P07:31:23.61 -0.41.0M
GURHP360.0273 P07:31:26.14 0.01.0M
OURHT353.5323 P07:31:25.02 0.01.0M
OURHT353.5323 S07:32:02.17 -0.91.0M
KLVHL377.3274 P07:31:28.61 0.31.0M
AGGHT382.8291 P07:31:29.36 0.41.0M
AGGHT382.8291 S07:32:09.25 -0.71.0M


  Solution details

Event:
    Public ID              nkua2021ctvm
    Description
      region name: Dodecanese Islands, Greece
Origin:
    Date                   2021-02-09
    Time                  07:30:34.99
    Latitude              37.7910 deg  +/-      1 km
    Longitude             26.4397 deg  +/-      1 km
    Depth                      21 km   +/-    1 km
    Agency                 HA
    Author                 A.Karakonstantis
    Mode                   manual
    Status                 confirmed
    Residual RMS             0.35 s
    Azimuthal gap             104 deg

2 Network magnitudes:
    MLv       4.00 +/- 0.14  20            
    M         4.00           20 preferred  

45 Phase arrivals:
    sta  net   dist azi  phase   time          res     wt  sta
    SAM2  HL    0.1 103  P       07:30:39.13  -0.4 M  1.0  SAM2 
    SAM2  HL    0.1 103  S       07:30:42.09  -0.8 M  1.0  SAM2 
    KRL1  HI    0.2  89  P       07:30:40.41   0.1 M  1.0  KRL1 
    KRL1  HI    0.2  89  S       07:30:44.12  -0.3 M  1.0  KRL1 
    SMG   HL    0.3 105  P       07:30:42.60   0.5 M  1.0  SMG  
    SMG   HL    0.3 105  S       07:30:47.54   0.0 M  1.0  SMG  
    SAM1  HL    0.5  93  P       07:30:44.91   0.5 M  1.0  SAM1 
    SAM1  HL    0.5  93  S       07:30:51.78   0.3 M  1.0  SAM1 
    CHOS  HT    0.7 333  P       07:30:48.06   0.2 M  1.0  CHOS 
    CHOS  HT    0.7 333  S       07:30:57.58  -0.1 M  1.0  CHOS 
    APE   HL    1.0 226  P       07:30:54.38   0.5 M  1.0  APE  
    APE   HL    1.0 226  S       07:31:08.41   0.2 M  1.0  APE  
    TNSA  HL    1.0 256  P       07:30:54.33   0.2 M  1.0  TNSA 
    TNSA  HL    1.0 256  S       07:31:08.88   0.2 M  1.0  TNSA 
    THNO  HC    1.1 263  P       07:30:55.76   0.1 M  1.0  THNO 
    THNO  HC    1.1 263  S       07:31:11.68   0.3 M  1.0  THNO 
    CMBO  HT    1.6 212  P       07:31:01.97   0.1 M  1.0  CMBO 
    CMBO  HT    1.6 212  S       07:31:21.68  -0.6 M  1.0  CMBO 
    STFN  HA    2.3 280  P       07:31:13.38   0.5 M  1.0  STFN 
    MDRA  HA    2.4 277  P       07:31:13.72   0.2 M  1.0  MDRA 
    MDRA  HA    2.4 277  S       07:31:42.11  -0.6 M  1.0  MDRA 
    VILL  HA    2.5 279  P       07:31:15.66   0.3 M  1.0  VILL 
    STIA  HC    2.6 186  P       07:31:17.10   0.4 M  1.0  STIA 
    STIA  HC    2.6 186  S       07:31:48.18  -0.3 M  1.0  STIA 
    ZKR   HL    2.7 184  P       07:31:18.10   0.2 M  1.0  ZKR  
    ZKR   HL    2.7 184  S       07:31:50.30  -0.2 M  1.0  ZKR  
    KNSS  HC    2.7 202  P       07:31:18.34   0.4 M  1.0  KNSS 
    KNSS  HC    2.7 202  S       07:31:50.45  -0.1 M  1.0  KNSS 
    LTK   HP    2.8 275  P       07:31:19.11   0.1 M  1.0  LTK  
    LTK   HP    2.8 275  S       07:31:52.05  -0.5 M  1.0  LTK  
    SMTH  HL    2.8 345  P       07:31:18.90  -0.3 M  1.0  SMTH 
    ACOR  HA    2.8 272  P       07:31:20.21   0.1 M  1.0  ACOR 
    PFKS  HC    2.9 196  P       07:31:20.49   0.0 M  1.0  PFKS 
    PFKS  HC    2.9 196  S       07:31:54.64  -0.4 M  1.0  PFKS 
    NEO   HL    2.9 301  P       07:31:21.79   0.2 M  1.0  NEO  
    PAIG  HT    3.0 315  P       07:31:23.25   0.2 M  1.0  PAIG 
    IMMV  HL    3.1 220  P       07:31:23.66   0.4 M  1.0  IMMV 
    IMMV  HL    3.1 220  S       07:31:59.49  -0.4 M  1.0  IMMV 
    THAS  HT    3.1 335  P       07:31:23.61  -0.4 M  1.0  THAS 
    OUR   HT    3.2 323  P       07:31:25.02   0.0 M  1.0  OUR  
    OUR   HT    3.2 323  S       07:32:02.17  -0.9 M  1.0  OUR  
    GUR   HP    3.2 273  P       07:31:26.14   0.0 M  1.0  GUR  
    KLV   HL    3.4 274  P       07:31:28.61   0.3 M  1.0  KLV  
    AGG   HT    3.5 291  P       07:31:29.36   0.4 M  1.0  AGG  
    AGG   HT    3.5 291  S       07:32:09.25  -0.7 M  1.0  AGG  

27 Station magnitudes:
    sta  net   dist azi  type   value   res        amp per
    SAM2  HL    0.1 103  MLv     3.38 -0.62    79.1335      
    KRL1  HI    0.2  89  MLv     3.95 -0.05    183.858      
    SMG   HL    0.3 105  MLv     3.94 -0.06    85.5329      
    SAM1  HL    0.5  93  MLv     3.74 -0.26    22.3271      
    CHOS  HT    0.7 333  MLv     4.12  0.12    27.8154      
    APE   HL    1.0 226  MLv     4.06  0.06    15.7076      
    TNSA  HL    1.0 256  MLv     4.11  0.11    16.9513      
    THNO  HC    1.1 263  MLv     3.86 -0.14    8.56294      
    CMBO  HT    1.6 212  MLv     4.90  0.90     54.799      
    STFN  HA    2.3 280  MLv     3.91 -0.09    2.08943      
    MDRA  HA    2.4 277  MLv     3.90 -0.10    1.92259      
    VILL  HA    2.5 279  MLv     4.01  0.01    2.12515      
    STIA  HC    2.6 186  MLv     4.27  0.27    3.33496      
    ZKR   HL    2.7 184  MLv     4.20  0.20    2.58468      
    KNSS  HC    2.7 202  MLv     4.30  0.29    3.18992      
    LTK   HP    2.8 275  MLv     3.73 -0.27    3.04186      
    SMTH  HL    2.8 345  MLv     4.07  0.07    1.09884      
    ACOR  HA    2.8 272  MLv     4.00 -0.00     1.3506      
    PFKS  HC    2.9 196  MLv     4.13  0.13    1.73384      
    NEO   HL    2.9 301  MLv     3.64 -0.36   0.699481      
    PAIG  HT    3.0 315  MLv     3.47 -0.53   0.233228      
    IMMV  HL    3.1 220  MLv     4.48  0.48    3.05914      
    THAS  HT    3.1 335  MLv     3.97 -0.03   0.867109      
    OUR   HT    3.2 323  MLv     3.82 -0.18   0.567398      
    GUR   HP    3.2 273  MLv     4.14  0.14    1.09127      
    KLV   HL    3.4 274  MLv     4.17  0.17   0.730515      
    AGG   HT    3.5 291  MLv     4.19  0.19   0.743495