Earthquake Information
 Origin Time
 2021-01-07 00:58:15 (GMT)
 Magnitude
 M 3.9
 Latitude
 40.1627° N
 Longitude
 25.0547° E
 Focal Depth
 20 km
 # of Arrivals
 63
 Location 32.0 km NNW of Limnos
52.6 km SW of Samothraki
267.8 km NNE 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)
6376-164 1.44E+22

Latitude (°N) Longitude (°E) Depth (km) Magnitude Mw
40.168225.066218.04.0

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
LIAHL31.4160 P00:58:21.36 0.01.0M
LIAHL31.4160 S00:58:25.67 -0.51.0M
LMN1HI32.0179 P00:58:21.50 0.11.0M
LMN1HI32.0179 S00:58:25.89 -0.41.0M
SMTHHL52.9 50 P00:58:24.36 -0.21.0M
SMTHHL52.9 50 S00:58:31.67 -0.11.0M
EFSAHL69.4185 P00:58:27.82 0.81.0M
EFSAHL69.4185 S00:58:36.99 0.91.0M
THS1HI75.8328 P00:58:28.45 0.41.0M
THS1HI75.8328 S00:58:38.14 0.31.0M
OURHT93.0282 P00:58:31.46 0.71.0M
OURHT93.0282 S00:58:43.20 0.61.0M
PAIGHT120.0258 P00:58:35.28 0.41.0M
PAIGHT120.0258 S00:58:50.38 0.51.0M
PLGHL138.6280 P00:58:37.84 0.11.0M
PLGHL138.6280 S00:58:55.09 0.01.0M
PRKHL145.3134 P00:58:39.23 0.71.0M
PRKHL145.3134 S00:58:56.58 0.21.0M
AOS2HT153.2223 P00:58:39.21 -0.41.0M
AOS2HT153.2223 S00:58:58.36 0.11.0M
SRSHT162.6310 P00:58:40.79 0.11.0M
SRSHT162.6310 S00:59:00.36 0.11.0M
KDZBS164.9 8 P00:58:41.08 0.01.0M
KDZBS164.9 8 S00:59:00.68 -0.11.0M
NVRHL165.6323 P00:58:41.33 0.11.0M
NVRHL165.6323 S00:59:00.35 -0.81.0M
HORTHT172.5286 P00:58:42.36 0.21.0M
HORTHT172.5286 S00:59:02.37 -0.51.0M
MYT1HI176.6133 P00:58:43.45 0.91.0M
MYT1HI176.6133 S00:59:03.55 0.11.0M
THEHT184.7286 P00:58:43.87 0.21.0M
THEHT184.7286 S00:59:05.26 -0.11.0M
KYMIHL188.8206 P00:58:43.86 -0.31.0M
KYMIHL188.8206 S00:59:06.18 0.01.0M
MMBBS189.1324 P00:58:44.63 0.41.0M
MMBBS189.1324 S00:59:05.86 -0.51.0M
LITHT218.2268 P00:58:48.15 0.11.0M
LITHT218.2268 S00:59:12.20 -0.91.0M
GRGHT240.7291 P00:58:51.58 0.71.0M
LKRHL243.9227 P00:58:50.63 -0.61.0M
LKRHL243.9227 S00:59:18.40 -0.31.0M
MRTHHA246.4203 P00:58:51.53 0.11.0M
MRTHHA246.4203 S00:59:18.89 -0.21.0M
KKBBS246.9319 P00:58:52.32 0.71.0M
KKBBS246.9319 S00:59:18.98 -0.41.0M
DIONHL251.2203 P00:58:52.04 -0.11.0M
DIONHL251.2203 S00:59:19.80 -0.51.0M
STFNHA256.4211 P00:58:52.64 -0.21.0M
STFNHA256.4211 S00:59:21.16 -0.41.0M
PTLHL256.7204 P00:58:52.82 0.01.0M
PTLHL256.7204 S00:59:21.28 -0.31.0M
ATHUHA267.7204 P00:58:54.01 -0.21.0M
ATHUHA267.7204 S00:59:23.38 -0.61.0M
THLHL267.9256 P00:58:54.31 0.01.0M
ATHHL269.4205 P00:58:54.69 0.31.0M
ATHHL269.4205 S00:59:24.10 -0.21.0M
VLYHL279.0203 P00:58:55.64 0.01.0M
VLYHL279.0203 S00:59:26.27 -0.31.0M
LTKHP298.4217 P00:58:57.95 -0.31.0M
LTKHP298.4217 S00:59:30.30 -0.71.0M
THALHA313.9221 P00:58:59.78 -0.41.0M
THALHA313.9221 S00:59:33.90 -0.61.0M
KPROHT315.0266 P00:59:00.58 0.11.0M


  Solution details 

Event:
    Public ID              nkua2021alay
    Type                   earthquake
    Description
      region name: Aegean Sea
Origin:
    Date                   2021-01-07
    Time                  00:58:15.06
    Latitude              40.1627 deg  +/-      0 km
    Longitude             25.0547 deg  +/-      0 km
    Depth                      20 km   +/-    1 km
    Agency                 HA
    Author                 A.Karakonstantis
    Mode                   manual
    Status                 confirmed
    Residual RMS             0.36 s
    Azimuthal gap              83 deg

2 Network magnitudes:
    MLv       3.88 +/- 0.18  25            
    M         3.88           25 preferred  

63 Phase arrivals:
    sta  net   dist azi  phase   time          res     wt  sta
    LIA   HL    0.3 160  P       00:58:21.36   0.0 M  1.0  LIA  
    LIA   HL    0.3 160  S       00:58:25.67  -0.5 M  1.0  LIA  
    LMN1  HI    0.3 179  P       00:58:21.50   0.1 M  1.0  LMN1 
    LMN1  HI    0.3 179  S       00:58:25.89  -0.4 M  1.0  LMN1 
    SMTH  HL    0.5  50  P       00:58:24.36  -0.2 M  1.0  SMTH 
    SMTH  HL    0.5  50  S       00:58:31.67  -0.1 M  1.0  SMTH 
    EFSA  HL    0.6 185  P       00:58:27.82   0.8 M  1.0  EFSA 
    EFSA  HL    0.6 185  S       00:58:36.99   0.9 M  1.0  EFSA 
    THS1  HI    0.7 328  P       00:58:28.45   0.4 M  1.0  THS1 
    THS1  HI    0.7 328  S       00:58:38.14   0.3 M  1.0  THS1 
    OUR   HT    0.8 282  P       00:58:31.46   0.7 M  1.0  OUR  
    OUR   HT    0.8 282  S       00:58:43.20   0.6 M  1.0  OUR  
    PAIG  HT    1.1 258  P       00:58:35.28   0.4 M  1.0  PAIG 
    PAIG  HT    1.1 258  S       00:58:50.38   0.5 M  1.0  PAIG 
    PLG   HL    1.3 280  P       00:58:37.84   0.1 M  1.0  PLG  
    PLG   HL    1.3 280  S       00:58:55.09   0.0 M  1.0  PLG  
    PRK   HL    1.3 134  P       00:58:39.23   0.7 M  1.0  PRK  
    PRK   HL    1.3 134  S       00:58:56.58   0.2 M  1.0  PRK  
    AOS2  HT    1.4 223  P       00:58:39.21  -0.4 M  1.0  AOS2 
    AOS2  HT    1.4 223  S       00:58:58.36   0.1 M  1.0  AOS2 
    SRS   HT    1.5 310  P       00:58:40.79   0.1 M  1.0  SRS  
    SRS   HT    1.5 310  S       00:59:00.36   0.1 M  1.0  SRS  
    KDZ   BS    1.5   8  P       00:58:41.08   0.0 M  1.0  KDZ  
    KDZ   BS    1.5   8  S       00:59:00.68  -0.1 M  1.0  KDZ  
    NVR   HL    1.5 323  P       00:58:41.33   0.1 M  1.0  NVR  
    NVR   HL    1.5 323  S       00:59:00.35  -0.8 M  1.0  NVR  
    HORT  HT    1.6 286  P       00:58:42.36   0.2 M  1.0  HORT 
    HORT  HT    1.6 286  S       00:59:02.37  -0.5 M  1.0  HORT 
    MYT1  HI    1.6 133  P       00:58:43.45   0.9 M  1.0  MYT1 
    MYT1  HI    1.6 133  S       00:59:03.55   0.1 M  1.0  MYT1 
    THE   HT    1.7 286  P       00:58:43.87   0.2 M  1.0  THE  
    THE   HT    1.7 286  S       00:59:05.26  -0.1 M  1.0  THE  
    KYMI  HL    1.7 206  P       00:58:43.86  -0.3 M  1.0  KYMI 
    KYMI  HL    1.7 206  S       00:59:06.18  -0.0 M  1.0  KYMI 
    MMB   BS    1.7 324  P       00:58:44.63   0.4 M  1.0  MMB  
    MMB   BS    1.7 324  S       00:59:05.86  -0.5 M  1.0  MMB  
    LIT   HT    2.0 268  P       00:58:48.15   0.1 M  1.0  LIT  
    LIT   HT    2.0 268  S       00:59:12.20  -0.9 M  1.0  LIT  
    GRG   HT    2.2 291  P       00:58:51.58   0.7 M  1.0  GRG  
    LKR   HL    2.2 227  P       00:58:50.63  -0.6 M  1.0  LKR  
    LKR   HL    2.2 227  S       00:59:18.40  -0.3 M  1.0  LKR  
    MRTH  HA    2.2 203  P       00:58:51.53   0.1 M  1.0  MRTH 
    MRTH  HA    2.2 203  S       00:59:18.89  -0.2 M  1.0  MRTH 
    KKB   BS    2.2 319  P       00:58:52.32   0.7 M  1.0  KKB  
    KKB   BS    2.2 319  S       00:59:18.98  -0.4 M  1.0  KKB  
    DION  HL    2.3 203  P       00:58:52.04  -0.1 M  1.0  DION 
    DION  HL    2.3 203  S       00:59:19.80  -0.5 M  1.0  DION 
    STFN  HA    2.3 211  P       00:58:52.64  -0.2 M  1.0  STFN 
    STFN  HA    2.3 211  S       00:59:21.16  -0.4 M  1.0  STFN 
    PTL   HL    2.3 204  P       00:58:52.82  -0.0 M  1.0  PTL  
    PTL   HL    2.3 204  S       00:59:21.28  -0.3 M  1.0  PTL  
    ATHU  HA    2.4 204  P       00:58:54.01  -0.2 M  1.0  ATHU 
    ATHU  HA    2.4 204  S       00:59:23.38  -0.6 M  1.0  ATHU 
    THL   HL    2.4 256  P       00:58:54.31  -0.0 M  1.0  THL  
    ATH   HL    2.4 205  P       00:58:54.69   0.3 M  1.0  ATH  
    ATH   HL    2.4 205  S       00:59:24.10  -0.2 M  1.0  ATH  
    VLY   HL    2.5 203  P       00:58:55.64  -0.0 M  1.0  VLY  
    VLY   HL    2.5 203  S       00:59:26.27  -0.3 M  1.0  VLY  
    LTK   HP    2.7 217  P       00:58:57.95  -0.3 M  1.0  LTK  
    LTK   HP    2.7 217  S       00:59:30.30  -0.7 M  1.0  LTK  
    THAL  HA    2.8 221  P       00:58:59.78  -0.4 M  1.0  THAL 
    THAL  HA    2.8 221  S       00:59:33.90  -0.6 M  1.0  THAL 
    KPRO  HT    2.8 266  P       00:59:00.58   0.1 M  1.0  KPRO 

33 Station magnitudes:
    sta  net   dist azi  type   value   res        amp per
    LIA   HL    0.3 160  MLv     3.80 -0.09    162.873      
    LMN1  HI    0.3 179  MLv     3.81 -0.08     80.931      
    SMTH  HL    0.5  50  MLv     3.93  0.04    20.6364      
    EFSA  HL    0.6 185  MLv     4.06  0.18    26.1721      
    THS1  HI    0.7 328  MLv     4.56  0.67    75.4335      
    OUR   HT    0.8 282  MLv     4.06  0.17    19.6531      
    PAIG  HT    1.1 258  MLv     3.49 -0.39    3.04466      
    PLG   HL    1.3 280  MLv     4.02  0.14    10.7572      
    PRK   HL    1.3 134  MLv     4.61  0.73    38.4589      
    AOS2  HT    1.4 223  MLv     3.96  0.07    7.76049      
    SRS   HT    1.5 310  MLv     4.20  0.32    8.71666      
    KDZ   BS    1.5   8  MLv     4.01  0.12    7.67714      
    NVR   HL    1.5 323  MLv     4.06  0.17    6.27982      
    HORT  HT    1.6 286  MLv     3.78 -0.10    2.81676      
    MYT1  HI    1.6 133  MLv     4.59  0.71    25.6183      
    THE   HT    1.7 286  MLv     3.81 -0.08    2.53128      
    KYMI  HL    1.7 206  MLv     3.61 -0.27    2.35095      
    MMB   BS    1.7 324  MLv     3.92  0.04    4.76721      
    LIT   HT    2.0 268  MLv     3.44 -0.44   0.814618      
    GRG   HT    2.2 291  MLv     4.40  0.52    7.94503      
    LKR   HL    2.2 227  MLv     3.70 -0.18   0.824166      
    MRTH  HA    2.2 203  MLv     3.83 -0.06    1.98665      
    KKB   BS    2.2 319  MLv     4.34  0.46    6.43569      
    DION  HL    2.3 203  MLv     3.26 -0.62    1.44252      
    STFN  HA    2.3 211  MLv     3.71 -0.18    1.33056      
    PTL   HL    2.3 204  MLv     3.71 -0.18    1.32761      
    ATHU  HA    2.4 204  MLv     3.78 -0.10   0.855304      
    THL   HL    2.4 256  MLv     3.65 -0.23     0.6187      
    ATH   HL    2.4 205  MLv     3.90  0.02    1.79566      
    VLY   HL    2.5 203  MLv     3.98  0.10    1.93396      
    LTK   HP    2.7 217  MLv     3.38 -0.50    1.47623      
    THAL  HA    2.8 221  MLv     3.66 -0.23     1.0962      
    KPRO  HT    2.8 266  MLv     3.86 -0.03   0.962889