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: III in Guánica, PR
Date: December 17, 2023 10:07:22 UTC
December 17, 2023 06:07:22 Hora Local
Region: South Region of Puerto Rico
Distances: 7.88 Km Southwest of Guánica,PR
11.81 Km Southeast of Lajas,PR
33.11 Km South-Southeast of Mayagüez,PR
Magnitude: 3.91 Md
Location: Latitude: 17.9401 Longitude: -66.9636
Depth: 14 Km
Tsunami Warning Level: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
Issued Date & Time 2023-12-17 06:47:17
ID: 20231217100720

Epicentral Map

Epicentral Map (PRSN), Last Modified: 2023-12-17 06:47:22 Hora Local.
BULLETIN 2
Seismic Event/Tsunami
DATE: December 17, 2023
LOCAL TIME: 06:07:22
LATITUDE: 17.9401 N
LONGITUDE: 66.9636 W
LOCATION: 7.9 Km Southwest of Guánica,PR
33.1 Km South-Southeast of Mayagüez,PR
DEPTH: 14 Km
MAGNITUDE: 3.91 Md
ESTIMATED MAXIMUM INTENSITY: III in Guánica, PR
TSUNAMI ALERT LEVEL: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
DATE & ISSUED TIME 2023-12-17 06:47:22
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 III (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                            
2023-12-17  1007 22.75  17 56.41   66 57.82  14.36  0.16  0.61  0.58        3.91  3.91D III                            
                                                                                         SOURCE                        
NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X                         
  42   42   9.1  PR1  194  14  21  21  10  42     Q  PPW   0.00  0.00     18.00  0.15 D                                
                                                                                                                       
XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T                                                
                         3.91  18.00  0.15 Z        3.91  18.00  0.15 D                                                

REGION= Southern Puerto Rico        

NEW COMMENT: 3.8 Ml (NEIC), New EarlyBird (4.5 Ml), 3.9 Ml (PTWC)                                                                                    
                                                                                                                       
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  
MLPR PR HHZ  A  9.1 291 139 EP+ 1  25.65  2.90  2.99 0.00 -0.09  0.77     0.108 0.55 135   3.69 Z                      
MLPR PR HH1  A  9.1 291 139 ES  1  27.96  5.21  5.32 0.00 -0.11  0.77S    0.267                                        
GBPR PR HHZ  A  9.7  66 137 IPD    25.88  3.13  3.04 0.00  0.09  1.55     0.325 0.58 115   3.52 Z                      
GBPR PR HH1  A  9.7  66 137 ES  1  28.51  5.76  5.41 0.00  0.35  0.70S    0.260                                        
CRPR PR HHZ  A 17.1 296 114 IPD    26.43  3.68  3.89 0.00 -0.21  1.55     0.316 0.55 162   3.90 Z                      
CRPR PR HH1  A 17.1 296 114 ES  1  29.43  6.68  6.92 0.00 -0.24  0.77S    0.140                                        
LSP  PR HHZ  A 29.1 334  93 IPD    28.27  5.52  5.53 0.00 -0.01  1.55     0.145                                        
LSP  PR HH1  A 29.1 334  93 ES  1  32.80 10.05  9.84 0.00  0.21  0.77S    0.141                                        
PRSN PR HHZ  A 36.2 329  91 IPD    29.35  6.60  6.53 0.00  0.07  1.55     0.156 0.55 117   3.72 Z                      
PRSN PR HH2  A 36.2 329  91 ES  1  34.68 11.93 11.62 0.00  0.31  0.77S    0.123                                        
OBIP PR HHZ  A 39.5  73  91 IPU    29.66  6.91  7.01 0.00 -0.10  1.55     0.195 0.44 150   4.07 Z                      
OBIP PR HH1  A 39.5  73  91 ES  1  35.30 12.55 12.48 0.00  0.07  0.77S    0.109                                        
UUPR PR HHZ  A 43.1  36  91 IPD    30.18  7.43  7.52 0.00 -0.09  1.55     0.167 0.55 157   4.02 Z                      
UUPR PR HH1  A 43.1  36  91 ES  1  35.78 13.03 13.39 0.00 -0.36  0.67S    0.168                                        
CELP PR HHZ  A 43.4  69  90 IPD    30.10  7.35  7.55 0.00 -0.20  1.55     0.180 0.55 145   3.94 Z                      
CELP PR HH2  A 43.4  69  90 ES  1  36.06 13.31 13.44 0.00 -0.13  0.77S    0.117                                        
ICMP PR HHZ  A 46.7  97  90 IPD    30.88  8.13  8.02 0.00  0.11  1.55     0.410 0.55  83   3.44 Z                      
ICMP PR HH1  A 46.7  97  90 ES  1  37.61 14.86 14.28 0.00  0.58* 0.00S    0.000                                        
AGPR PR HHZ  A 60.4 346  90 IPU    32.84 10.09  9.94 0.00  0.15  1.46     0.137 0.55 155   4.02 Z                      
AGPR PR HH1  A 60.4 346  90 ES  1  40.16 17.41 17.69 0.00 -0.28  0.73S    0.162                                        
IDE  PR EHZ  A 72.5 313  63 IPU    34.49 11.74 11.60 0.00  0.14  1.06     0.251 0.58 111   3.71 Z                      
IDE  PR EHN  A 72.5 313  63 ES  1  43.61 20.86 20.65 0.00  0.21  0.53S    0.111                                        
SJG  IU BHZ  A 88.2  77  63 IPD    37.17 14.42 13.59 0.00  0.83* 0.00     0.000 0.73 105   3.57 Z                      
SJG  IU BH1  A 88.2  77  63 ES  1  48.03 25.28 24.19 0.00  1.09* 0.00S    0.000                                        
IGPR PR HHZ  A 90.8  88  63 IPD    37.56 14.81 13.91 0.00  0.90* 0.00     0.000 0.55 120   3.82 Z                      
IGPR PR HH1  A 90.8  88  63 ES  1  49.03 26.28 24.76 0.00  1.52* 0.00S    0.000                                        
GCPR PR HHZ  A101.7  66  63 IPU    38.37 15.62 15.29 0.00  0.33  0.01     0.000 0.55 136   3.95 Z                      
GCPR PR HH1  A101.7  66  63 ES  1  50.20 27.45 27.22 0.00  0.23  0.01S    0.000                                        
HUMP PR HHZ  A120.1  79  63 IPD    41.26 18.51 17.63 0.00  0.88* 0.00     0.000 0.55 127   3.91 Z                      
HUMP PR HH1  A120.1  79  63 ES  1  55.23 32.48 31.38 0.00  1.10* 0.00S    0.000                                        
FAPR PR HHZ  A141.7  77  63 EP+ 1  45.64 22.89 20.36 0.00  2.53* 0.00     0.000 0.55 110   3.80 Z                      
FAPR PR HH1  A141.7  77  63 ES  1  60.86 38.11 36.24 0.00  1.87* 0.00S    0.000                                        
PCDR PR BHZ  A162.8 294  63 IPD    48.15 25.40 23.03 0.00  2.37* 0.00     0.000 0.55 139   4.04 Z                      
PCDR PR BHN  A162.8 294  63 ES  1  64.46 41.71 40.99 0.00  0.72* 0.00S    0.000                                        
STVI PR HHZ  A217.3  77  63 IPU    55.50 32.75 29.92 0.00  2.83* 0.00     0.000 0.55 137   4.08 Z                      
STVI PR HH1  A217.3  77  63 ES  1  75.15 52.40 53.26 0.00 -0.86* 0.00S    0.000                                        
CDVI PR HHZ  A234.1  94  63 EP+ 1  55.37 32.62 32.05 0.00  0.57* 0.00     0.000 0.55 158   4.23 Z                      
CDVI PR HH2  A234.1  94  63 ES  1  79.11 56.36 57.05 0.00 -0.69* 0.00S    0.000                                        
TBVI PR HHZ  A253.6  77  63 IPU    60.24 37.49 34.52 0.00  2.97* 0.00     0.000                                        
TBVI PR HH2  A253.6  77  63 ES  1  84.25 61.50 61.45 0.00  0.05  0.00S    0.000                                        
SDDR CU BHZ  A471.5 285  63 EP- 2  88.73 65.98 62.10 0.00  3.88* 0.00     0.000                                        
SDDR CU BH1  A471.5 285  63 ES  1 134.43111.68110.54 0.00  1.14* 0.00S    0.000                                        

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