No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands.


Earthquake Information


This information is Issued for Puerto Rico and the Virgin Islands.For more information visit your corresponding Seismological Institution or theTsunami Warning Centers
Event Details
Estimated Maximum Intensity: I
Date: May 21, 2023 18:08:39 UTC
May 21, 2023 14:08:39 Hora Local
Region: 19° N Fault Zone
Distances: 108.47 Km North of Loiza,PR
114.57 Km North-Northeast of Cataño,PR
116.71 Km North-Northeast of San Juan,PR
Magnitude: 3.97 Md
Location: Latitude: 19.4156 Longitude: -65.7795
Depth: 77 Km
Tsunami Warning Level: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
Issued Date & Time 2023-05-21 14:22:40
ID: 20230521180838

Epicentral Map

Technical Information

YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG  FMAG  PMAG  INT                            
2023-05-21  1808 39.49  19 24.94   65 46.77  77.55  0.37  3.43  6.69        3.97  3.97D                                
                                                                                         SOURCE                        
NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X                         
  37   37 126.6  PR1  260  12  20  35  16  37     Q  PPP   0.00  0.00      7.00  0.10 D                                
                                                                                                                       
XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T                                                
                         3.97   7.00  0.10 Z        3.97   7.00  0.10 D                                                

REGION= 19 N Fault Zone                                                                                                
                                                                                                                       
STA NET COM CR DIST AZM  AN P/S WT   SEC (TOBS -TCAL -DLY  =RES)  WT   SR  INFO  CAL DUR-W-FMAG-T -AMP-U-PER-W-XMAG-T  
GCPR PR HHZ  A126.6 195 118 EP+ 1  58.79 19.30 19.99 0.00 -0.69* 1.02     0.042                                        
GCPR PR HH2  A126.6 195 118 ES  1  74.53 35.04 35.58 0.00 -0.54* 1.02S    0.146                                        
EMPR PR HHZ  A130.5 218 117 EP+ 1  60.25 20.76 20.42 0.00  0.34  1.02     0.101                                        
EMPR PR HH1  A130.5 218 117 ES  1  76.28 36.79 36.35 0.00  0.44  1.02S    0.278                                        
CUPR PR HHZ  A133.4 156 116 EP+ 1  60.06 20.57 20.75 0.00 -0.18  1.02     0.089 0.55 120   3.97 Z                      
CUPR PR HH1  A133.4 156 116 ES  1  76.30 36.81 36.93 0.00 -0.12  1.02S    0.201                                        
ECPR PR HHZ  A136.1 207 116 EP+ 1  60.21 20.72 21.05 0.00 -0.33  1.02     0.043                                        
ECPR PR HH1  A136.1 207 116 ES  2  77.73 38.24 37.47 0.00  0.77* 0.41S    0.019                                        
STVI PR HHZ  A146.2 143 114 EP- 1  61.47 21.98 22.21 0.00 -0.23  1.02     0.126                                        
STVI PR HH2  A146.2 143 114 ES  1  79.28 39.79 39.53 0.00  0.26  1.02S    0.229                                        
SJG  IU BHZ  A149.5 196 114 EP+ 1  62.13 22.64 22.59 0.00  0.05  1.02     0.051 0.73 114   3.82 Z                      
SJG  IU BH1  A149.5 196 114 ES  1  79.67 40.18 40.21 0.00 -0.03  1.02S    0.154                                        
AOPR PR HHZ  A156.7 222 113 EP- 1  62.42 22.93 23.42 0.00 -0.49  1.02     0.063 0.55 129   4.07 Z                      
AOPR PR HH1  A156.7 222 113 ES  1  81.67 42.18 41.69 0.00  0.49  1.02S    0.117                                        
SJVI PR HHZ  A160.2 138 112 EP+ 1  62.78 23.29 23.84 0.00 -0.55* 1.02     0.143 0.55 117   3.98 Z                      
SJVI PR HH2  A160.2 138 112 ES  1  82.28 42.79 42.44 0.00  0.35  1.02S    0.233                                        
UUPR PR HHZ  A162.5 218 112 EP+ 1  63.35 23.86 24.10 0.00 -0.24  1.02     0.048                                        
UUPR PR HH1  A162.5 218 112 ES  1  82.85 43.36 42.90 0.00  0.46  1.02S    0.084                                        
IGPR PR HHZ  A164.2 193 112 EP+ 1  63.77 24.28 24.30 0.00 -0.02  1.02     0.090                                        
CELP PR HHZ  A170.7 210 111 EP+ 1  64.56 25.07 25.06 0.00  0.01  1.02     0.058 0.55 132   4.10 Z                      
CELP PR HH1  A170.7 210 111 ES  1  84.33 44.84 44.61 0.00  0.23  1.02S    0.137                                        
OBIP PR BHZ  A175.2 210 110 EP+ 1  65.68 26.19 25.60 0.00  0.59* 1.02     0.065                                        
OBIP PR BHN  A175.2 210 110 ES  1  84.57 45.08 45.57 0.00 -0.49  1.02S    0.156                                        
AGPR PR HHZ  A175.2 234 110 EP+ 1  65.57 26.08 25.60 0.00  0.48  1.02     0.111 0.55  99   3.84 Z                      
AGPR PR HH1  A175.2 234 110 ES  1  84.71 45.22 45.57 0.00 -0.35  1.02S    0.191                                        
LSP  PR HHZ  A194.4 226 108 EP- 1  67.36 27.87 27.89 0.00 -0.02  1.02     0.067                                        
PRSN PR HHZ  A195.7 228 108 EP+ 1  67.76 28.27 28.04 0.00  0.23  1.02     0.070                                        
PRSN PR HH2  A195.7 228 108 ES  1  89.18 49.69 49.91 0.00 -0.22  1.02S    0.080                                        
GBPR PR HHZ  A197.2 217 108 EP+ 1  67.92 28.43 28.22 0.00  0.21  1.02     0.081                                        
GBPR PR HH1  A197.2 217 108 ES  1  89.95 50.46 50.23 0.00  0.23  1.02S    0.167                                        
MLPR PR HHZ  A208.4 221 107 EP+ 1  69.37 29.88 29.57 0.00  0.31  1.02     0.085                                        
CRPR PR HHZ  A209.8 223 107 EP+ 1  69.53 30.04 29.74 0.00  0.30  1.02     0.082 0.55 109   3.97 Z                      
CRPR PR HH1  A209.8 223 107 ES  1  91.97 52.48 52.94 0.00 -0.46  1.02S    0.135                                        
IDE  PR EHZ  A211.2 238 107 EP+ 1  69.46 29.97 29.91 0.00  0.06  1.02     0.108                                        
IDE  PR EHN  A211.2 238 107 ES  1  92.10 52.61 53.24 0.00 -0.63* 1.02S    0.129                                        
HMDR DR BHZ  A385.5 261  99 EP+ 1  89.31 49.82 51.46 0.00 -1.64* 0.00     0.000                                        
HMDR DR BHN  A385.5 261  99 ES  1 127.88 88.39 91.60 0.00 -3.21* 0.00S    0.000