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 Humacao, PR
Date: August 21, 2022 07:49:09 UTC
August 21, 2022 03:49:09 Hora Local
Region: East Region of Puerto Rico
Distances: 9.86 Km Southeast of Naguabo,PR
11.13 Km South-Southeast of Ceiba,,PR
46.93 Km East-Southeast of San Juan,PR
Magnitude: 3.71 Md
Location: Latitude: 18.1656 Longitude: -65.7015
Depth: 14 Km
Tsunami Warning Level: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
Issued Date & Time 2022-08-21 03:53:04
ID: 20220821074908

Epicentral Map

Epicentral Map (PRSN), Last Modified: 2022-08-21 04:31:32 Hora Local.
BULLETIN 1
Seismic Event/Tsunami
DATE: August 21, 2022
LOCAL TIME: 03:49:09
LATITUDE: 18.1656 N
LONGITUDE: 65.7015 W
LOCATION: 9.9 Km Southeast of Naguabo,PR
46.9 Km East-Southeast of San Juan,PR
DEPTH: 14 Km
MAGNITUDE: 3.71 Md
ESTIMATED MAXIMUM INTENSITY: IV in Humacao, PR
TSUNAMI ALERT LEVEL: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
DATE & ISSUED TIME 2022-08-21 04:31:32
The Puerto Rico Seismic Network (PRSN) received information that this minor earthquake was reported as felt in the Eastern 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                            
2022-08-21  0749  9.49  18  9.94   65 42.09  14.98  0.24  0.91  0.94        3.71  3.71D  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                         
  56   56  15.8  PR1  138  13  28  19  10  56     Q  PP0   0.00  0.00     20.00  0.13 D                                
                                                                                                                       
XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T                                                
                         3.71  20.00  0.13 Z        3.71  20.00  0.13 D                                                

REGION= Eastern 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  
HUMP PR HHZ  A 15.8 261 120 EP+ 1  13.47  3.98  3.77 0.00  0.21  1.19     0.135 0.55  75   3.19 Z                      
HUMP PR HH1  A 15.8 261 120 ES  1  16.56  7.07  6.71 0.00  0.36  1.19S    0.387                                        
MTP  PR HHZ  A 17.5 115 116 EP- 1  13.58  4.09  3.97 0.00  0.12  1.19     0.196 0.55  72   3.16 Z                      
MTP  PR HH1  A 17.5 115 116 ES  1  16.57  7.08  7.07 0.00  0.01  1.19S    0.456                                        
GCPR PR HHZ  A 43.4 292  92 EP- 1  17.03  7.54  7.56 0.00 -0.02  1.19     0.145 0.55  90   3.51 Z                      
GCPR PR HH2  A 43.4 292  92 ES  1  22.69 13.20 13.46 0.00 -0.26  1.19S    0.391                                        
CUPR PR HHZ  A 47.0  70  92 EP+ 1  17.46  7.97  8.06 0.00 -0.09  1.19     0.176 0.55  94   3.55 Z                      
CUPR PR HH1  A 47.0  70  92 ES  1  23.40 13.91 14.35 0.00 -0.44  1.19S    0.370                                        
SJG  IU BHZ  A 47.8 263  92 IPU    17.68  8.19  8.18 0.00  0.01  2.38     0.285 0.73  98   3.47 Z                      
SJG  IU BH1  A 47.8 263  92 ES  1  23.78 14.29 14.56 0.00 -0.27  1.19S    0.133                                        
IGPR PR HHZ  A 48.3 243  92 EP- 1  17.72  8.23  8.24 0.00 -0.01  1.19     0.145 0.55 102   3.63 Z                      
IGPR PR HH1  A 48.3 243  92 ES  1  23.67 14.18 14.67 0.00 -0.49  1.19S    0.345                                        
ECPR PR HHZ  A 72.0 284  63 EP+ 1  21.24 11.75 11.49 0.00  0.26  0.94     0.102 0.55 133   3.90 Z                      
ECPR PR HH1  A 72.0 284  63 ES  1  30.24 20.75 20.45 0.00  0.30  0.94S    0.235                                        
STVI PR HHZ  A 81.5  75  63 IPU    22.55 13.06 12.69 0.00  0.37  1.30     0.292 0.55 109   3.72 Z                      
STVI PR HH2  A 81.5  75  63 ES  1  31.95 22.46 22.59 0.00 -0.13  0.65S    0.157                                        
ICMP PR HHZ  A 92.7 251  63 EP- 1  24.59 15.10 14.11 0.00  0.99* 0.00     0.000                                        
ICMP PR HH1  A 92.7 251  63 ES  1  36.68 27.19 25.12 0.00  2.07* 0.00S    0.000                                        
CELP PR HHZ  A 93.4 264  63 EP- 1  24.28 14.79 14.21 0.00  0.58* 0.19     0.004 0.55 114   3.78 Z                      
CELP PR HH1  A 93.4 264  63 ES  1  35.22 25.73 25.29 0.00  0.44  0.26S    0.023                                        
EMPR PR HHZ  A 94.1 292  63 IPU    24.97 15.48 14.29 0.00  1.19* 0.00     0.000 0.55 118   3.81 Z                      
EMPR PR HH1  A 94.1 292  63 ES  1  37.14 27.65 25.44 0.00  2.21* 0.00S    0.000                                        
OBIP PR BHZ  A 96.7 263  63 EP+ 1  24.76 15.27 14.62 0.00  0.65* 0.05     0.000 0.87  97   3.44 Z                      
OBIP PR BHN  A 96.7 263  63 ES  1  35.90 26.41 26.02 0.00  0.39  0.18S    0.011                                        
PR04 GS HHZ  A104.7 259  63 EP- 1  26.32 16.83 15.63 0.00  1.20* 0.00     0.000                                        
PR04 GS HH2  A104.7 259  63 ES  1  38.97 29.48 27.82 0.00  1.66* 0.00S    0.000                                        
UUPR PR HHZ  A108.2 276  63 IPD    26.46 16.97 16.07 0.00  0.90* 0.00     0.000 0.55 114   3.79 Z                      
UUPR PR HH1  A108.2 276  63 ES  1  39.10 29.61 28.60 0.00  1.01* 0.00S    0.000                                        
PR06 GS HHZ  A109.0 264  63 EP+ 1  26.50 17.01 16.17 0.00  0.84* 0.00     0.000                                        
PR06 GS HH2  A109.0 264  63 ES  1  39.77 30.28 28.78 0.00  1.50* 0.00S    0.000                                        
AOPR PR HHZ  A113.1 281  63 EP+ 1  27.25 17.76 16.70 0.00  1.06* 0.00     0.000 0.55 126   3.89 Z                      
AOPR PR HH2  A113.1 281  63 ES  1  40.26 30.77 29.73 0.00  1.04* 0.00S    0.000                                        
PR02 GS HHZ  A114.4 262  63 IPD    27.48 17.99 16.86 0.00  1.13* 0.00     0.000 0.55  83   3.51 Z                      
PR02 GS HH1  A114.4 262  63 ES  1  41.54 32.05 30.01 0.00  2.04* 0.00S    0.000                                        
PR05 GS HHZ  A123.4 265  63 IPD    28.71 19.22 18.00 0.00  1.22* 0.00     0.000                                        
PR05 GS HH1  A123.4 265  63 ES  1  43.38 33.89 32.04 0.00  1.85* 0.00S    0.000                                        
GBPR PR HHZ  A126.5 261  63 EP- 1  29.29 19.80 18.39 0.00  1.41* 0.00     0.000 0.58 118   3.82 Z                      
GBPR PR HH1  A126.5 261  63 ES  1  43.56 34.07 32.73 0.00  1.34* 0.00S    0.000                                        
PR03 GS HHZ  A131.3 266  63 EP+ 1  29.99 20.50 19.00 0.00  1.50* 0.00     0.000 0.55 110   3.79 Z                      
PR03 GS HH1  A131.3 266  63 ES  1  45.51 36.02 33.82 0.00  2.20* 0.00S    0.000                                        
MLPR PR HHZ  A143.8 262  63 EP- 1  31.84 22.35 20.58 0.00  1.77* 0.00     0.000 0.55 114   3.83 Z                      
MLPR PR HH1  A143.8 262  63 ES  1  48.11 38.62 36.63 0.00  1.99* 0.00S    0.000                                        
PR01 GS HHZ  A145.4 265  63 EP- 1  31.34 21.85 20.78 0.00  1.07* 0.00     0.000 0.55 116   3.85 Z                      
PR01 GS HH1  A145.4 265  63 ES  1  46.66 37.17 36.99 0.00  0.18  0.00S    0.000                                        
AGPR PR HHZ  A152.7 283  63 EP- 1  32.58 23.09 21.71 0.00  1.38* 0.00     0.000                                        
AGPR PR HH1  A152.7 283  63 ES  1  49.04 39.55 38.64 0.00  0.91* 0.00S    0.000                                        
PRSN PR HHZ  A152.8 273  63 EP- 1  33.06 23.57 21.72 0.00  1.85* 0.00     0.000 0.55  92   3.65 Z                      
PRSN PR HH2  A152.8 273  63 ES  1  49.58 40.09 38.66 0.00  1.43* 0.00S    0.000                                        
IDE  PR EHZ  A188.3 278  63 EP+ 1  37.96 28.47 26.21 0.00  2.26* 0.00     0.000 0.58  96   3.70 Z                      
IDE  PR EHE  A188.3 278  63 ES  2  59.38 49.89 46.65 0.00  3.24* 0.00S    0.000                                        
PCDR PR BHZ  A285.9 279  63 EP- 1  51.43 41.94 38.57 0.00  3.37* 0.00     0.000                                        
PCDR PR BHE  A285.9 279  63 ES  1  80.77 71.28 68.65 0.00  2.63* 0.00S    0.000                                        
SADR DR BHZ  A325.8 272  63 EP- 2  56.81 47.32 43.62 0.00  3.70* 0.00     0.000                                        
SADR DR BHE  A325.8 272  63 ES  2  88.89 79.40 77.64 0.00  1.76* 0.00S    0.000                                        
HMDR DR BHZ  A394.9 281  63 EP- 2  66.16 56.67 52.37 0.00  4.30* 0.00     0.000                                        
HMDR DR BHN  A394.9 281  63 ES  2 106.76 97.27 93.22 0.00  4.05* 0.00S    0.000                                        

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