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: V in Lajas, PR
Date: April 22, 2023 11:37:42 UTC
April 22, 2023 07:37:42 Hora Local
Region: South Region of Puerto Rico
Distances: 6.68 Km South-Southeast of Guánica,PR
14.75 Km Southeast of Lajas,PR
35.35 Km South-Southeast of Mayagüez,PR
Magnitude: 4.04 Md
Location: Latitude: 17.9335 Longitude: -66.934
Depth: 13 Km
Tsunami Warning Level: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
Issued Date & Time 2023-04-22 08:15:41
ID: 20230422113743

Epicentral Map

Epicentral Map (PRSN), Last Modified: 2023-04-22 08:15:48 Hora Local.
BULLETIN 2
Seismic Event/Tsunami
DATE: April 22, 2023
LOCAL TIME: 07:37:42
LATITUDE: 17.9335 N
LONGITUDE: 66.934 W
LOCATION: 6.7 Km South-Southeast of Guánica,PR
35.3 Km South-Southeast of Mayagüez,PR
DEPTH: 13 Km
MAGNITUDE: 4.04 Md
ESTIMATED MAXIMUM INTENSITY: V in Lajas, PR
TSUNAMI ALERT LEVEL: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
DATE & ISSUED TIME 2023-04-22 08:15:48
The Puerto Rico Seismic Network (PRSN) received information that this light earthquake was reported as felt in the Central region of Puerto Rico, the Western region of Puerto Rico and the Southern region of Puerto Rico with a maximum intensity of V (Modified Mercalli Scale, MM). At the moment of generating this bulletin no damages has been reported, but given the size and location this can not be ruled out

Based on magnitude, location and historic records the earthquake was not sufficient to generate a destructive tsunami to Puerto Rico and Virgin Islands.

Technical Information

YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH   RMS   ERH   ERZ  XMAG  FMAG  PMAG  INT                            
2023-04-22  1137 42.67  17 56.01   66 56.04  13.14  0.14  0.86  0.39        4.04  4.04D V                              
                                                                                         SOURCE                        
NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X                         
  45   45   7.4  PR1  227  17  23  18   8  45     Q  PPY   0.00  0.00     20.00  0.09 D                                
                                                                                                                       
XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T                                                
                         4.04  20.00  0.09 Z        4.04  20.00  0.09 D                                                

REGION= Southern Puerto Rico                                                                                           
                                                                                                                       
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  
GBPR PR HHZ  A  7.4  51 146 IPD    45.40  2.73  2.68 0.00  0.05  1.51     0.482                                        
GBPR PR HH1  A  7.4  51 146 ES  1  47.61  4.94  4.77 0.00  0.17  0.76S    0.359                                        
CRPR PR HHZ  A 20.3 294 113 IPU    46.72  4.05  4.24 0.00 -0.19  1.51     0.495 0.55 200   4.11 Z                      
CRPR PR HH2  A 20.3 294 113 ES  1  49.76  7.09  7.55 0.00 -0.46  0.13S    0.005                                        
LSP  PR HHZ  A 31.3 330 103 IPU    48.46  5.79  5.84 0.00 -0.05  1.51     0.215 0.58 170   4.01 Z                      
LSP  PR HH2  A 31.3 330 103 ES  1  53.28 10.61 10.40 0.00  0.21  0.76S    0.283                                        
PRSN PR HHZ  A 38.5 325  66 IPU    49.50  6.83  6.92 0.00 -0.09  1.51     0.233 0.55 137   3.88 Z                      
PRSN PR HH1  A 38.5 325  66 ES  1  55.03 12.36 12.32 0.00  0.04  0.76S    0.156                                        
CELP PR HHZ  A 40.7  67  66 IPD    49.85  7.18  7.22 0.00 -0.04  1.51     0.375 0.55 181   4.14 Z                      
CELP PR HH1  A 40.7  67  66 ES  1  55.49 12.82 12.85 0.00 -0.03  0.76S    0.166                                        
UUPR PR HHZ  A 42.0  32  66 IPD    49.93  7.26  7.40 0.00 -0.14  1.51     0.170 0.55 165   4.06 Z                      
UUPR PR HH2  A 42.0  32  66 ES  1  55.14 12.47 13.17 0.00 -0.70* 0.00S    0.000                                        
AOPR PR HHZ  A 49.5  22  66 IPD    51.09  8.42  8.46 0.00 -0.04  1.51     0.159 0.55 186   4.18 Z                      
AOPR PR HH1  A 49.5  22  66 ES  1  57.37 14.70 15.06 0.00 -0.36  0.72S    0.225                                        
AGPR PR HHZ  A 62.0 343  66 IPU    53.11 10.44 10.22 0.00  0.22  1.39     0.133 0.55 137   3.91 Z                      
AGPR PR HH2  A 62.0 343  66 ES  1  60.82 18.15 18.19 0.00 -0.04  0.70S    0.170                                        
ECPR PR HHZ  A 74.0  54  55 IPD    54.76 12.09 11.88 0.00  0.21  0.97     0.128 0.55 172   4.13 Z                      
ECPR PR HH2  A 74.0  54  55 ES  1  63.90 21.23 21.15 0.00  0.08  0.48S    0.063                                        
IDE  PR EHZ  A 75.4 312  55 IPD    55.01 12.34 12.05 0.00  0.29  0.91     0.171 0.58 156   4.02 Z                      
IDE  PR EHE  A 75.4 312  55 ES  1  64.57 21.90 21.45 0.00  0.45  0.08S    0.002                                        
SJG  IU BHZ  A 85.3  76  55 IPD    56.52 13.85 13.32 0.00  0.53* 0.00     0.000 0.73 125   3.73 Z                      
SJG  IU BH1  A 85.3  76  55 ES  1  67.25 24.58 23.71 0.00  0.87* 0.00S    0.000                                        
IGPR PR HHZ  A 87.7  87  55 IPD    57.18 14.51 13.62 0.00  0.89* 0.00     0.000 0.55 147   4.00 Z                      
IGPR PR HH2  A 87.7  87  55 ES  1  68.34 25.67 24.24 0.00  1.43* 0.00S    0.000                                        
GCPR PR HHZ  A 99.1  65  55 IPD    58.36 15.69 15.06 0.00  0.63* 0.00     0.000 0.55 136   3.95 Z                      
GCPR PR HH1  A 99.1  65  55 ES  1  70.03 27.36 26.81 0.00  0.55* 0.00S    0.000                                        
IMPR PR HHZ  A106.8 279  55 IPD    59.62 16.95 16.03 0.00  0.92* 0.00     0.000 0.55 146   4.02 Z                      
IMPR PR HH2  A106.8 279  55 ES  3  74.34 31.67 28.53 0.00  3.14* 0.00S    0.000                                        
HUMP PR HHZ  A117.2  78  55 EP+ 1  61.03 18.36 17.35 0.00  1.01* 0.00     0.000 0.55 155   4.08 Z                      
HUMP PR HH2  A117.2  78  55 ES  1  75.44 32.77 30.88 0.00  1.89* 0.00S    0.000                                        
FAPR PR HHZ  A138.8  76  55 EP+ 1  64.52 21.85 20.09 0.00  1.76* 0.00     0.000 0.55 133   3.97 Z                      
FAPR PR HH2  A138.8  76  55 ES  1  80.44 37.77 35.76 0.00  2.01* 0.00S    0.000                                        
MTP  PR HHZ  A147.4  82  55 EP- 1  65.63 22.96 21.18 0.00  1.78* 0.00     0.000 0.55 183   4.27 Z                      
MTP  PR HH1  A147.4  82  55 ES  1  85.27 42.60 37.70 0.00  4.90* 0.00S    0.000                                        
PCDR PR BHZ  A166.0 294  55 EP+ 2  68.40 25.73 23.53 0.00  2.20* 0.00     0.000                                        
PCDR PR BHN  A166.0 294  55 ES  1  91.89 49.22 41.88 0.00  7.34* 0.00S    0.000                                        
CUPR PR HHZ  A179.6  76  55 EP+ 1  70.70 28.03 25.25 0.00  2.78* 0.00     0.000 0.55 180   4.29 Z                      
CUPR PR HH2  A179.6  76  55 ES  1  89.36 46.69 44.94 0.00  1.75* 0.00S    0.000                                        
STVI PR HHZ  A214.4  77  55 EP+ 2  76.10 33.43 29.65 0.00  3.78* 0.00     0.000 0.55 133   4.05 Z                      
STVI PR HH2  A214.4  77  55 ES  2 100.29 57.62 52.78 0.00  4.84* 0.00S    0.000                                        
SJVI PR HHZ  A233.1  78  55 EP- 1  78.51 35.84 32.02 0.00  3.82* 0.00     0.000 0.55 164   4.26 Z                      
SJVI PR HH1  A233.1  78  55 ES  1 105.99 63.32 57.00 0.00  6.32* 0.00S    0.000                                        
SMDR PR BHZ  A281.4 303  55 EP+ 2  85.72 43.05 38.13 0.00  4.92* 0.00     0.000 0.00 142   3.33 Z                      
SMDR PR BHE  A281.4 303  55 ES  2 118.67 76.00 67.87 0.00  8.13* 0.00S    0.000                                        
SDDR CU BHZ  A474.7 285  55 EP- 2 112.90 70.23 62.61 0.00  7.62* 0.00     0.000                                        

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