Earthquake Information
 Origin Time
2025-07-27 20:31:51 (GMT)
 Magnitude
M 1.8
 Latitude
40.5106° N
 Longitude
23.6592° E
 Focal Depth
2 km
 # of Arrivals
21
 Location 24.1 km NE of Poliyiros
57.8 km WNW of Kariai
281.1 km N of Athens
 Solution type
automatic
 Files / Links
QuakeML  GSE2.0  Alert  .phi  
  

  Station data

StationNetDist.(km)Azim.PhaseArr.TimeRes.Wgt.Type
GR091Y16.8 8 P20:31:54.30 -0.41.0A
PLGHL23.9230 P20:31:55.91 0.01.0A
OURHT33.6126 P20:31:57.93 0.41.0A
SOHHT42.9324 P20:31:58.66 -0.51.0A
GR131Y43.8246 P20:31:59.10 -0.21.0A
KOKKHT44.6 40 P20:31:59.01 -0.41.0A
HORTHT48.3282 P20:31:59.25 -0.81.0A
PAIGHT63.9179 P20:32:02.67 0.01.0A
SRSHT66.8355 P20:32:02.41 -0.71.0A
GR021Y83.6 30 P20:32:07.41 1.41.0A
KAVAHT89.7 53 P20:32:07.02 -0.11.0A
THASHT90.2 83 P20:32:06.65 -0.51.0A
GR011Y91.5340 P20:32:06.97 -0.31.0A
NVRHL94.8 10 P20:32:08.09 0.21.0A
MMBBS115.5 4 P20:32:10.78 -0.51.0A
GRGHT116.9295 P20:32:12.52 1.01.0A
PRASHL119.9 38 P20:32:11.64 -0.31.0A
MK04A1Y120.0328 P20:32:12.82 0.91.0A
GR041Y121.7 64 P20:32:11.69 -0.51.0A
GR031Y125.1 55 P20:32:13.21 0.51.0A
KKBBS154.5343 P20:32:17.67 0.81.0A


  Solution details

Event:
    Public ID              nkua2025optu
    Description
      region name: Greece
Origin:
    Date                   2025-07-27
    Time                  20:31:51.47  +/-    0.3 s
    Latitude              40.5106 deg  +/-      2 km
    Longitude             23.6592 deg  +/-      2 km
    Depth                       2 km
    Agency                 HA
    Mode                   automatic
    Status                 NOT SET
    Residual RMS             0.60 s
    Azimuthal gap              53 deg

2 Network magnitudes:
    MLv       1.76 +/- 0.15  16            
    M         1.76           16 preferred  

21 Phase arrivals:
    sta  net   dist azi  phase   time          res     wt  sta
    GR09  1Y    0.2   8  P       20:31:54.30  -0.4 A  1.0  GR09 
    PLG   HL    0.2 230  P       20:31:55.91   0.0 A  1.0  PLG  
    OUR   HT    0.3 126  P       20:31:57.93   0.4 A  1.0  OUR  
    SOH   HT    0.4 324  P       20:31:58.66  -0.5 A  1.0  SOH  
    GR13  1Y    0.4 246  P       20:31:59.10  -0.2 A  1.0  GR13 
    KOKK  HT    0.4  40  P       20:31:59.01  -0.4 A  1.0  KOKK 
    HORT  HT    0.4 282  P       20:31:59.25  -0.8 A  1.0  HORT 
    PAIG  HT    0.6 179  P       20:32:02.67   0.0 A  1.0  PAIG 
    SRS   HT    0.6 355  P       20:32:02.41  -0.7 A  1.0  SRS  
    GR02  1Y    0.8  30  P       20:32:07.41   1.4 A  1.0  GR02 
    KAVA  HT    0.8  53  P       20:32:07.02  -0.1 A  1.0  KAVA 
    THAS  HT    0.8  83  P       20:32:06.65  -0.5 A  1.0  THAS 
    GR01  1Y    0.8 340  P       20:32:06.97  -0.3 A  1.0  GR01 
    NVR   HL    0.9  10  P       20:32:08.09   0.2 A  1.0  NVR  
    MMB   BS    1.0   4  P       20:32:10.78  -0.5 A  1.0  MMB  
    GRG   HT    1.1 295  P       20:32:12.52   1.0 A  1.0  GRG  
    PRAS  HL    1.1  38  P       20:32:11.64  -0.3 A  1.0  PRAS 
    MK04A 1Y    1.1 328  P       20:32:12.82   0.9 A  1.0  MK04A
    GR04  1Y    1.1  64  P       20:32:11.69  -0.5 A  1.0  GR04 
    GR03  1Y    1.1  55  P       20:32:13.21   0.5 A  1.0  GR03 
    KKB   BS    1.4 343  P       20:32:17.67   0.8 A  1.0  KKB  

20 Station magnitudes:
    sta  net   dist azi  type   value   res        amp per
    GR09  1Y    0.2   8  MLv     2.56  0.80    10.8886      
    PLG   HL    0.2 230  MLv     1.99  0.24    2.00384      
    OUR   HT    0.3 126  MLv     1.32 -0.44   0.241232      
    SOH   HT    0.4 324  MLv     1.63 -0.13   0.286577      
    GR13  1Y    0.4 246  MLv     1.69 -0.06   0.315593      
    KOKK  HT    0.4  40  MLv     1.78  0.02    0.36762      
    HORT  HT    0.4 282  MLv     1.86  0.10   0.241538      
    PAIG  HT    0.6 179  MLv     1.73 -0.02   0.100576      
    SRS   HT    0.6 355  MLv     1.83  0.08   0.111888      
    GR02  1Y    0.8  30  MLv     1.60 -0.15   0.0769028      
    KAVA  HT    0.8  53  MLv     1.60 -0.16   0.146802      
    THAS  HT    0.8  83  MLv     2.29  0.53   0.346679      
    GR01  1Y    0.8 340  MLv     1.56 -0.20   0.0635271      
    NVR   HL    0.9  10  MLv     1.62 -0.13   0.0525438      
    MMB   BS    1.0   4  MLv     1.64 -0.12   0.0575966      
    GRG   HT    1.1 295  MLv     1.54 -0.22   0.0449962      
    PRAS  HL    1.1  38  MLv     1.67 -0.08   0.0592989      
    MK04A 1Y    1.1 328  MLv     1.92  0.16   0.104796      
    GR04  1Y    1.1  64  MLv     2.15  0.40   0.176192      
    GR03  1Y    1.1  55  MLv     1.91  0.15   0.0965221