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: IV in Guánica, PR
Date: March 15, 2023 07:51:46 UTC
March 15, 2023 03:51:46 Hora Local
Region: South Region of Puerto Rico
Distances: 8.31 Km Southwest of Guánica,PR
13.2 Km Southeast of Lajas,PR
34.52 Km South-Southeast of Mayagüez,PR
Magnitude: 4.2 Ml
Location: Latitude: 17.9291 Longitude: -66.9568
Depth: 7 Km
Tsunami Warning Level: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
Issued Date & Time 2023-03-15 04:28:50
ID: 20230315075146

Epicentral Map

Epicentral Map (PRSN), Last Modified: 2023-03-15 04:28:55 Hora Local.
BULLETIN 2
Seismic Event/Tsunami
DATE: March 15, 2023
LOCAL TIME: 03:51:46
LATITUDE: 17.9291 N
LONGITUDE: 66.9568 W
LOCATION: 8.3 Km Southwest of Guánica,PR
34.5 Km South-Southeast of Mayagüez,PR
DEPTH: 7 Km
MAGNITUDE: 4.2 Ml
ESTIMATED MAXIMUM INTENSITY: IV in Guánica, PR
TSUNAMI ALERT LEVEL: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
DATE & ISSUED TIME 2023-03-15 04:28:55
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 IV (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                            
2023-03-15  0751 46.47  17 55.75   66 57.41   7.04  0.11  0.74  0.27        3.46  3.46D IV                             
                                                                                         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   9.6  PR1  225  15  24  22  10  48     Q  PPW   0.00  0.00     22.00  0.09 D                                
                                                                                                                       
XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T                                                
                         3.46  22.00  0.09 Z        3.46  22.00  0.09 D                                                

REGION= Southern Puerto Rico        

NEW COMMENT: 4.2 Ml EarlyBird, 4.3 Ml USGS, 4.5 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  
GBPR PR HHZ  A  9.6  58 121 IPD    48.79  2.32  2.33 0.00 -0.01  1.48     0.438                                        
GBPR PR HH1  A  9.6  58 121 ES  1  50.60  4.13  4.15 0.00 -0.02  0.74S    0.424                                        
MLPR PR HHZ  A 10.3 296 120 IPD    48.89  2.42  2.42 0.00  0.00  1.48     0.361                                        
MLPR PR HH1  A 10.3 296 120 ES  1  50.71  4.24  4.31 0.00 -0.07  0.74S    0.170                                        
CRPR PR HHZ  A 18.3 298 106 IPU    50.21  3.74  3.77 0.00 -0.03  1.48     0.301 0.55  85   3.32 Z                      
CRPR PR HH2  A 18.3 298 106 ES  1  52.87  6.40  6.71 0.00 -0.31  0.40S    0.040                                        
LSP  PR HHZ  A 30.5 334  57 IPU    52.09  5.62  5.72 0.00 -0.10  1.48     0.135 0.58  83   3.35 Z                      
LSP  PR HH2  A 30.5 334  57 ES  1  56.69 10.22 10.18 0.00  0.04  0.74S    0.180                                        
PRSN PR HHZ  A 37.6 329  57 IPU    53.29  6.82  6.81 0.00  0.01  1.48     0.146 0.55  84   3.43 Z                      
PRSN PR HH1  A 37.6 329  57 ES  1  58.84 12.37 12.12 0.00  0.25  0.74S    0.158                                        
OBIP PR BHZ  A 39.2  71  57 IPD    53.51  7.04  7.06 0.00 -0.02  1.48     0.309 0.87  83   3.23 Z                      
OBIP PR BHE  A 39.2  71  57 ES  1  59.00 12.53 12.57 0.00 -0.04  0.74S    0.107                                        
CELP PR HHZ  A 43.1  67  57 IPD    54.12  7.65  7.66 0.00 -0.01  1.48     0.258 0.55  82   3.42 Z                      
CELP PR HH1  A 43.1  67  57 ES  1  60.18 13.71 13.63 0.00  0.08  0.74S    0.101                                        
UUPR PR HHZ  A 43.7  34  57 IPU    53.97  7.50  7.75 0.00 -0.25  1.48     0.130 0.55  81   3.41 Z                      
UUPR PR HH1  A 43.7  34  57 ES  1  59.65 13.18 13.80 0.00 -0.61* 0.00S    0.000                                        
AOPR PR HHZ  A 50.9  24  57 IPD    55.29  8.82  8.87 0.00 -0.05  1.48     0.139 0.55  81   3.42 Z                      
AOPR PR HH2  A 50.9  24  57 ES  1  61.77 15.30 15.79 0.00 -0.49  0.00S    0.000                                        
AGPR PR HHZ  A 61.8 345  57 IPU    57.20 10.73 10.53 0.00  0.20  1.37     0.113 0.55  83   3.45 Z                      
AGPR PR HH2  A 61.8 345  57 ES  1  64.97 18.50 18.74 0.00 -0.24  0.69S    0.197                                        
IDE  PR EHZ  A 73.9 314  50 IPD    58.71 12.24 12.32 0.00 -0.08  0.95     0.125 0.58  91   3.53 Z                      
IDE  PR EHN  A 73.9 314  50 ES  1  68.15 21.68 21.93 0.00 -0.25  0.48S    0.056                                        
EMPR PR HHZ  A 75.6  36  50 IPD    59.73 13.26 12.57 0.00  0.69* 0.00     0.000 0.55  81   3.45 Z                      
EMPR PR HH2  A 75.6  36  50 ES  1  69.42 22.95 22.37 0.00  0.58* 0.00S    0.000                                        
ECPR PR HHZ  A 76.2  55  50 IPD    59.21 12.74 12.65 0.00  0.09  0.85     0.064 0.55  83   3.47 Z                      
ECPR PR HH1  A 76.2  55  50 ES  1  68.93 22.46 22.52 0.00 -0.06  0.43S    0.034                                        
IGPR PR HHZ  A 90.1  87  44 IPD    61.59 15.12 14.50 0.00  0.62* 0.00     0.000 0.55  80   3.45 Z                      
IGPR PR HH1  A 90.1  87  44 ES  1  72.59 26.12 25.81 0.00  0.31  0.06S    0.001                                        
IMPR PR HHZ  A104.5 280  44 IPD    63.64 17.17 16.32 0.00  0.85* 0.00     0.000 0.55 172   4.17 Z                      
HUMP PR HHZ  A119.7  78  44 IPD    65.99 19.52 18.24 0.00  1.28* 0.00     0.000 0.55  79   3.47 Z                      
HUMP PR HH2  A119.7  78  44 ES  1  78.75 32.28 32.47 0.00 -0.19  0.00S    0.000                                        
FAPR PR HHZ  A141.3  76  44 IPU    69.35 22.88 20.97 0.00  1.91* 0.00     0.000 0.55 108   3.78 Z                      
FAPR PR HH1  A141.3  76  44 ES  1  86.44 39.97 37.33 0.00  2.64* 0.00S    0.000                                        
MTP  PR HHZ  A149.9  82  44 IPU    70.75 24.28 22.06 0.00  2.22* 0.00     0.000 0.55 152   4.10 Z                      
MTP  PR HH1  A149.9  82  44 ES  1  87.82 41.35 39.27 0.00  2.08* 0.00S    0.000                                        
PCDR PR BHZ  A164.0 294  44 IPD    72.67 26.20 23.85 0.00  2.35* 0.00     0.000 0.55 207   4.40 Z                      
PCDR PR BHN  A164.0 294  44 ES  1  88.51 42.04 42.45 0.00 -0.41  0.00S    0.000                                        
CUPR PR HHZ  A182.1  76  44 IPD    76.06 29.59 26.14 0.00  3.45* 0.00     0.000 0.55 153   4.14 Z                      
CUPR PR HH2  A182.1  76  44 ES  1  96.88 50.41 46.53 0.00  3.88* 0.00S    0.000                                        
STVI PR HHZ  A216.8  77  44 IPD    80.51 34.04 30.54 0.00  3.50* 0.00     0.000 0.55 138   4.09 Z                      
STVI PR HH2  A216.8  77  44 ES  1 105.08 58.61 54.36 0.00  4.25* 0.00S    0.000                                        
CDVI PR HHZ  A233.2  94  44 IPD    80.87 34.40 32.61 0.00  1.79* 0.00     0.000 0.55 182   4.36 Z                      
CDVI PR HH1  A233.2  94  44 ES  1 104.40 57.93 58.05 0.00 -0.12  0.00S    0.000                                        
SJVI PR HHZ  A235.5  78  44 IPU    82.76 36.29 32.90 0.00  3.39* 0.00     0.000 0.55 144   4.15 Z                      
SJVI PR HH1  A235.5  78  44 ES  1 104.10 57.63 58.56 0.00 -0.93* 0.00S    0.000                                        
SMDR PR BHZ  A279.6 303  44 IPU    89.77 43.30 38.48 0.00  4.82* 0.00     0.000 0.00 157   3.42 Z                      
SMDR PR BHN  A279.6 303  44 ES  1 117.39 70.92 68.49 0.00  2.43* 0.00S    0.000                                        
SDDR CU BH1  A472.5 285  44 ES  1 158.39111.92111.96 0.00 -0.04  0.00S    0.000                                        

Event Maps



Spectral Acceleration


Intensity Map


Peak Ground Velocity


Peak Ground Acceleration


DYFI Map

Google Map for this Event