Earthquake Information
 Origin Time
 2025-12-28 20:52:16 (GMT)
 Magnitude
 M 1.8
 Latitude
 38.3437° N
 Longitude
 23.9923° E
 Focal Depth
 11 km
 # of Arrivals
 20
 Location 36.7 km ESE of Chalkida
46.0 km NNE of Athens
58.7 km E of Thiva
 Solution type
 manual
 Files / Links
 QuakeML  GSE2.0  Alert  .phi  
  

  Station data

StationNetDist.(km)Azim.PhaseArr.TimeRes.Wgt.Type
ERTRHA19.3291 P20:52:20.29 0.01.0M
ERTRHA19.3291 S20:52:23.08 -0.31.0M
MRTHHA25.0190 P20:52:21.47 0.31.0M
MRTHHA25.0190 S20:52:24.88 0.01.0M
GR27B1Y26.4122 P20:52:21.47 0.01.0M
GR27B1Y26.4122 S20:52:25.09 -0.21.0M
PTLHL34.8199 P20:52:23.52 0.71.0M
PTLHL34.8199 S20:52:28.07 0.31.0M
ALIOHA41.7222 P20:52:23.99 0.11.0M
ALIOHA41.7222 S20:52:29.49 -0.21.0M
ATHUHA45.7204 P20:52:24.69 0.11.0M
ATHUHA45.7204 S20:52:30.67 -0.21.0M
KARYHA52.1132 P20:52:25.65 0.11.0M
KARYHA52.1132 S20:52:32.27 -0.41.0M
MDRAHA55.7236 P20:52:26.26 0.11.0M
MDRAHA55.7236 S20:52:33.58 -0.11.0M
VLYHL57.3198 P20:52:26.68 0.31.0M
VLYHL57.3198 S20:52:33.82 -0.21.0M
VILLHA62.6251 P20:52:27.65 0.31.0M
VILLHA62.6251 S20:52:35.62 -0.11.0M


  Solution details 

Event:
    Public ID              nkua2025zldx
    Description
      region name: Greece
Origin:
    Date                   2025-12-28
    Time                  20:52:16.30
    Latitude              38.3437 deg  +/-      0 km
    Longitude             23.9923 deg  +/-      0 km
    Depth                      11 km   +/-    1 km
    Agency                 HA
    Author                 A. Karakonstantis
    Mode                   manual
    Status                 confirmed
    Residual RMS             0.21 s
    Azimuthal gap             191 deg

2 Network magnitudes:
    MLv       1.84 +/- 0.22   8            
    M         1.84            8 preferred  

20 Phase arrivals:
    sta  net   dist azi  phase   time          res     wt  sta
    ERTR  HA    0.2 291  P       20:52:20.29  -0.0 M  1.0  ERTR 
    ERTR  HA    0.2 291  S       20:52:23.08  -0.3 M  1.0  ERTR 
    MRTH  HA    0.2 190  P       20:52:21.47   0.3 M  1.0  MRTH 
    MRTH  HA    0.2 190  S       20:52:24.88  -0.0 M  1.0  MRTH 
    GR27B 1Y    0.2 122  P       20:52:21.47   0.0 M  1.0  GR27B
    GR27B 1Y    0.2 122  S       20:52:25.09  -0.2 M  1.0  GR27B
    PTL   HL    0.3 199  P       20:52:23.52   0.7 M  1.0  PTL  
    PTL   HL    0.3 199  S       20:52:28.07   0.3 M  1.0  PTL  
    ALIO  HA    0.4 222  P       20:52:23.99   0.1 M  1.0  ALIO 
    ALIO  HA    0.4 222  S       20:52:29.49  -0.2 M  1.0  ALIO 
    ATHU  HA    0.4 204  P       20:52:24.69   0.1 M  1.0  ATHU 
    ATHU  HA    0.4 204  S       20:52:30.67  -0.2 M  1.0  ATHU 
    KARY  HA    0.5 132  P       20:52:25.65   0.1 M  1.0  KARY 
    KARY  HA    0.5 132  S       20:52:32.27  -0.4 M  1.0  KARY 
    MDRA  HA    0.5 236  P       20:52:26.26   0.1 M  1.0  MDRA 
    MDRA  HA    0.5 236  S       20:52:33.58  -0.1 M  1.0  MDRA 
    VLY   HL    0.5 198  P       20:52:26.68   0.3 M  1.0  VLY  
    VLY   HL    0.5 198  S       20:52:33.82  -0.2 M  1.0  VLY  
    VILL  HA    0.6 251  P       20:52:27.65   0.3 M  1.0  VILL 
    VILL  HA    0.6 251  S       20:52:35.62  -0.1 M  1.0  VILL 

10 Station magnitudes:
    sta  net   dist azi  type   value   res        amp per
    ERTR  HA    0.2 291  MLv     1.19 -0.65   0.403195      
    MRTH  HA    0.2 190  MLv     1.68 -0.15   0.909412      
    GR27B 1Y    0.2 122  MLv     1.59 -0.25   0.675186      
    PTL   HL    0.3 199  MLv     1.54 -0.30    0.37164      
    ALIO  HA    0.4 222  MLv     1.81 -0.02   0.468675      
    ATHU  HA    0.4 204  MLv     1.81 -0.03   0.226124      
    KARY  HA    0.5 132  MLv     2.03  0.20   0.428016      
    MDRA  HA    0.5 236  MLv     2.14  0.30    0.44465      
    VLY   HL    0.5 198  MLv     2.11  0.27   0.374421      
    VILL  HA    0.6 251  MLv     2.11  0.27   0.314268