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 Guánica, PR
Date: April 16, 2023 09:54:35 UTC
April 16, 2023 05:54:35 Hora Local
Region: South Region of Puerto Rico
Distances: 7.13 Km Southwest of Guánica,PR
11.73 Km Southeast of Lajas,PR
32.78 Km South-Southeast of Mayagüez,PR
Magnitude: 3.94 Md
Location: Latitude: 17.9456 Longitude: -66.9595
Depth: 6 Km
Tsunami Warning Level: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
Issued Date & Time 2023-04-16 06:33:52
ID: 20230416095434

Epicentral Map

Epicentral Map (PRSN), Last Modified: 2023-04-16 06:33:58 Hora Local.
BULLETIN 2
Seismic Event/Tsunami
DATE: April 16, 2023
LOCAL TIME: 05:54:35
LATITUDE: 17.9456 N
LONGITUDE: 66.9595 W
LOCATION: 7.1 Km Southwest of Guánica,PR
32.8 Km South-Southeast of Mayagüez,PR
DEPTH: 6 Km
MAGNITUDE: 3.94 Md
ESTIMATED MAXIMUM INTENSITY: V in Guánica, PR
TSUNAMI ALERT LEVEL: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
DATE & ISSUED TIME 2023-04-16 06:33:58
The Puerto Rico Seismic Network (PRSN) received information that this light earthquake was reported as felt in 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                            
2023-04-16  0954 35.07  17 56.74   66 57.57   6.58  0.14  0.75  0.38        3.94  3.94D 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                         
  48   48   9.1  PR1  210  17  25  22  10  48     Q  PPY   0.00  0.00     22.00  0.10 D                                
                                                                                                                       
XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T                                                
                         3.94  22.00  0.10 Z        3.94  22.00  0.10 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  9.1  69 121 EP+ 1  37.30  2.23  2.20 0.00  0.03  0.85     0.183 0.58 150   3.76 Z                      
GBPR PR HH2  A  9.1  69 121 ES  1  39.15  4.08  3.92 0.00  0.16  0.85S    0.572                                        
MLPR PR HHZ  A  9.3 287 120 IPU    37.25  2.18  2.24 0.00 -0.06  1.71     0.356                                        
MLPR PR HH2  A  9.3 287 120 ES  1  38.97  3.90  3.99 0.00 -0.09  0.85S    0.177                                        
CRPR PR HHZ  A 17.3 293 105 IPU    38.54  3.47  3.57 0.00 -0.10  1.71     0.270 0.55 142   3.78 Z                      
CRPR PR HH2  A 17.3 293 105 ES  1  41.17  6.10  6.35 0.00 -0.25  0.85S    0.147                                        
LSP  PR HHZ  A 28.7 333  57 IPU    40.46  5.39  5.50 0.00 -0.11  1.71     0.158 0.58 164   3.96 Z                      
LSP  PR HH1  A 28.7 333  57 ES  1  45.37 10.30  9.79 0.00  0.51* 0.00S    0.000                                        
PRSN PR HHZ  A 35.9 327  57 IPU    41.62  6.55  6.60 0.00 -0.05  1.71     0.181 0.55 118   3.73 Z                      
PRSN PR HH1  A 35.9 327  57 ES  1  47.04 11.97 11.75 0.00  0.22  0.85S    0.168                                        
UUPR PR HHZ  A 42.4  36  57 IPD    42.56  7.49  7.60 0.00 -0.11  1.71     0.144 0.55 118   3.75 Z                      
UUPR PR HH2  A 42.4  36  57 ES  1  48.51 13.44 13.53 0.00 -0.09  0.85S    0.157                                        
CELP PR HHZ  A 42.7  70  57 IPD    42.62  7.55  7.65 0.00 -0.10  1.71     0.428 0.55 158   4.02 Z                      
CELP PR HH1  A 42.7  70  57 ES  1  48.69 13.62 13.62 0.00  0.00  0.85S    0.137                                        
AOPR PR HHZ  A 49.4  26  57 IPD    43.63  8.56  8.68 0.00 -0.12  1.71     0.138 0.55 150   3.98 Z                      
AOPR PR HH2  A 49.4  26  57 ES  1  50.29 15.22 15.45 0.00 -0.23  0.85S    0.197                                        
AGPR PR HHZ  A 59.9 345  57 IPU    45.66 10.59 10.29 0.00  0.30  1.63     0.128 0.55 148   3.98 Z                      
AGPR PR HH2  A 59.9 345  57 ES  1  53.32 18.25 18.32 0.00 -0.07  0.81S    0.195                                        
IDE  PR EHZ  A 72.4 313  50 EP- 1  47.16 12.09 12.17 0.00 -0.08  0.59     0.046 0.58 116   3.75 Z                      
IDE  PR EHE  A 72.4 313  50 ES  1  57.58 22.51 21.66 0.00  0.85* 0.00S    0.000                                        
EMPR PR HHZ  A 74.4  37  50 IPD    48.16 13.09 12.44 0.00  0.65* 0.00     0.000 0.55 128   3.86 Z                      
EMPR PR HH1  A 74.4  37  50 ES  1  57.95 22.88 22.14 0.00  0.74* 0.00S    0.000                                        
ECPR PR HHZ  A 75.5  56  50 IPD    47.60 12.53 12.60 0.00 -0.07  1.02     0.106 0.55 155   4.04 Z                      
ECPR PR HH2  A 75.5  56  50 ES  1  57.75 22.68 22.43 0.00  0.25  0.51S    0.037                                        
SJG  IU BHZ  A 87.7  77  44 IPD    49.60 14.53 14.25 0.00  0.28  0.42     0.047 0.73 125   3.73 Z                      
SJG  IU BH1  A 87.7  77  44 ES  1  60.70 25.63 25.36 0.00  0.26  0.21S    0.017                                        
IGPR PR HHZ  A 90.4  88  44 EP- 1  50.18 15.11 14.59 0.00  0.52* 0.00     0.000 0.55 116   3.79 Z                      
IGPR PR HH1  A 90.4  88  44 ES  1  62.34 27.27 25.97 0.00  1.30* 0.00S    0.000                                        
GCPR PR HHZ  A101.1  66  44 IPD    51.42 16.35 15.94 0.00  0.41  0.01     0.000 0.55 132   3.92 Z                      
GCPR PR HH2  A101.1  66  44 ES  1  63.82 28.75 28.37 0.00  0.38  0.01S    0.000                                        
IMPR PR HHZ  A103.9 279  44 EP+ 2  52.03 16.96 16.31 0.00  0.65* 0.00     0.000 0.55 123   3.86 Z                      
IMPR PR HH2  A103.9 279  44 ES  2  66.15 31.08 29.03 0.00  2.05* 0.00S    0.000                                        
HUMP PR HHZ  A119.6  79  44 EP- 1  54.03 18.96 18.29 0.00  0.67* 0.00     0.000 0.55 145   4.03 Z                      
HUMP PR HH2  A119.6  79  44 ES  2  69.42 34.35 32.56 0.00  1.79* 0.00S    0.000                                        
FAPR PR HHZ  A141.2  77  44 EP+ 2  57.88 22.81 21.02 0.00  1.79* 0.00     0.000 0.55 106   3.76 Z                      
FAPR PR HH2  A141.2  77  44 ES  2  75.87 40.80 37.42 0.00  3.38* 0.00S    0.000                                        
MTP  PR HHZ  A149.9  83  44 EP- 2  58.82 23.75 22.13 0.00  1.62* 0.00     0.000 0.55 137   4.01 Z                      
MTP  PR HH2  A149.9  83  44 ES  2  77.01 41.94 39.39 0.00  2.55* 0.00S    0.000                                        
PCDR PR BHZ  A163.0 293  44 EP+ 2  60.40 25.33 23.78 0.00  1.55* 0.00     0.000                                        
CUPR PR HHZ  A182.0  77  44 EP- 2  63.85 28.78 26.18 0.00  2.60* 0.00     0.000 0.55 144   4.09 Z                      
CUPR PR HH2  A182.0  77  44 ES  2  84.50 49.43 46.60 0.00  2.83* 0.00S    0.000                                        
STVI PR HHZ  A216.7  77  44 EP+ 2  69.42 34.35 30.58 0.00  3.77* 0.00     0.000 0.55 129   4.03 Z                      
STVI PR HH1  A216.7  77  44 ES  2  93.51 58.44 54.43 0.00  4.01* 0.00S    0.000                                        
CDVI PR HHZ  A233.7  94  44 EP+ 2  69.68 34.61 32.73 0.00  1.88* 0.00     0.000 0.55 130   4.05 Z                      
CDVI PR HH2  A233.7  94  44 ES  2  97.57 62.50 58.26 0.00  4.24* 0.00S    0.000                                        
SJVI PR HHZ  A235.5  79  44 EP- 2  71.56 36.49 32.96 0.00  3.53* 0.00     0.000 0.55 124   4.01 Z                      
SJVI PR HH1  A235.5  79  44 ES  2  98.01 62.94 58.67 0.00  4.27* 0.00S    0.000                                        
SMDR PR BHZ  A278.3 303  44 EP+ 2  78.43 43.36 38.38 0.00  4.98* 0.00     0.000                                        

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