Earthquake Information
 Origin Time
2025-04-20 21:31:45 (GMT)
 Magnitude
M 1.9
 Latitude
39.8020° N
 Longitude
23.5348° E
 Focal Depth
10 km
 # of Arrivals
15
 Location 64.2 km S of Poliyiros
69.9 km NE of Volos
203.0 km N of Athens
 Solution type
automatic
 Files / Links
QuakeML  GSE2.0  Alert  .phi  
  

  Station data

StationNetDist.(km)Azim.PhaseArr.TimeRes.Wgt.Type
OURHT70.3 33 P21:31:57.69 0.21.0A
HMT1HT79.1 50 P21:31:58.06 -0.81.0A
KOKKHT119.6 19 P21:32:05.49 0.41.0A
THASHT134.6 48 P21:32:05.51 -1.61.0A
KAVAHT156.3 32 P21:32:10.11 0.11.0A
THIVHA168.0186 P21:32:11.97 0.41.0A
GR041Y178.4 42 P21:32:13.44 0.51.0A
VILLHA183.1186 P21:32:14.48 1.01.0A
PRASHL192.6 26 P21:32:16.01 1.31.0A
EFPHP207.7223 P21:32:15.55 -1.21.0A
NYDRHT272.5245 P21:32:26.31 1.41.0A
EVGIHT280.6243 P21:32:24.19 -1.71.0A
DRAGHT283.6245 P21:32:26.37 0.11.0A


  Solution details

Event:
    Public ID              nkua2025hsul
    Description
      region name: Aegean Sea
Origin:
    Date                   2025-04-20
    Time                  21:31:44.81  +/-    0.3 s
    Latitude              39.8020 deg  +/-      4 km
    Longitude             23.5348 deg  +/-      5 km
    Depth                      10 km
    Agency                 HA
    Mode                   automatic
    Status                 NOT SET
    Residual RMS             1.00 s
    Azimuthal gap             136 deg

2 Network magnitudes:
    MLv       1.93 +/- 0.35   8            
    M         1.93            8 preferred  

15 Phase arrivals:
    sta  net   dist azi  phase   time          res     wt  sta
    OUR   HT    0.6  33  P       21:31:57.69   0.2 A  1.0  OUR  
    HMT1  HT    0.7  50  P       21:31:58.06  -0.8 A  1.0  HMT1 
    GR09  1Y    0.9   8  P       21:32:04.74   3.2 AX 0.0  GR09 
    KOKK  HT    1.1  19  P       21:32:05.49   0.4 A  1.0  KOKK 
    THAS  HT    1.2  48  P       21:32:05.51  -1.6 A  1.0  THAS 
    KAVA  HT    1.4  32  P       21:32:10.11   0.1 A  1.0  KAVA 
    THIV  HA    1.5 186  P       21:32:11.97   0.4 A  1.0  THIV 
    GR04  1Y    1.6  42  P       21:32:13.44   0.5 A  1.0  GR04 
    VILL  HA    1.6 186  P       21:32:14.48   1.0 A  1.0  VILL 
    PRAS  HL    1.7  26  P       21:32:16.01   1.3 A  1.0  PRAS 
    EFP   HP    1.9 223  P       21:32:15.55  -1.2 A  1.0  EFP  
    LKD2  HT    2.4 246  P       21:32:28.57   3.7 AX 0.0  LKD2 
    NYDR  HT    2.5 245  P       21:32:26.31   1.4 A  1.0  NYDR 
    EVGI  HT    2.5 243  P       21:32:24.19  -1.7 A  1.0  EVGI 
    DRAG  HT    2.6 245  P       21:32:26.37   0.1 A  1.0  DRAG 

10 Station magnitudes:
    sta  net   dist azi  type   value   res        amp per
    OUR   HT    0.6  33  MLv     2.41  0.47   0.568811      
    HMT1  HT    0.7  50  MLv     2.84  0.91    1.40772      
    KOKK  HT    1.1  19  MLv     1.55 -0.38   0.0449706      
    THAS  HT    1.2  48  MLv     2.13  0.19   0.142989      
    KAVA  HT    1.4  32  MLv     1.36 -0.57   0.0396227      
    THIV  HA    1.5 186  MLv     2.48  0.55   0.220225      
    GR04  1Y    1.6  42  MLv     1.74 -0.20   0.0350293      
    VILL  HA    1.6 186  MLv     1.63 -0.30   0.026117      
    PRAS  HL    1.7  26  MLv     1.68 -0.26   0.025918      
    EFP   HP    1.9 223  MLv     1.90 -0.03   0.036518