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 Lajas, PR
Date: August 11, 2023 23:40:20 UTC
August 11, 2023 19:40:20 Hora Local
Region: Southwest Region of Puerto Rico
Distances: 7.41 Km Southwest of Lajas,PR
12.98 Km Southeast of Cabo Rojo,PR
27.16 Km South of Mayagüez,PR
Magnitude: 2.99 Md
Location: Latitude: 17.9611 Longitude: -67.0803
Depth: 7 Km
Tsunami Warning Level: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
Issued Date & Time 2023-08-11 20:07:02
ID: 20230811234020

Epicentral Map

Epicentral Map (PRSN), Last Modified: 2023-08-11 20:07:08 Hora Local.
BULLETIN 1
Seismic Event/Tsunami
DATE: August 11, 2023
LOCAL TIME: 19:40:20
LATITUDE: 17.9611 N
LONGITUDE: 67.0803 W
LOCATION: 7.4 Km Southwest of Lajas,PR
27.2 Km South of Mayagüez,PR
DEPTH: 7 Km
MAGNITUDE: 2.99 Md
ESTIMATED MAXIMUM INTENSITY: III in Lajas, PR
TSUNAMI ALERT LEVEL: No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands
DATE & ISSUED TIME 2023-08-11 20:07:08
The Puerto Rico Seismic Network (PRSN) received information that this micro earthquake was reported as felt in Lajas with a maximum intensity of III (Modified Mercalli Scale, MM). At the moment of generating this bulletin no damages has been reported and are not expected to occur

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
2023-08-11  2340 20.06  17 57.67   67  4.82   7.13  0.11  0.43  0.18        2.99  2.99D 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
  13   30   3.9  PR1  235   0  16  23  16  23     Q  A1     0.00 0.00        10 0.093 D  Y Y N

XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T
                                                    2.99     10 0.093 D

Event_ID= 71421328
Region= Southwest Region of Puerto Rico   
Comment= Revision: 2023-08-11T23:58:31.51

 STA NET COM LOC 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 00   A  3.9  76 149 EPD 1  21.66  1.60  1.61    0 -0.01 0.10  J   mr 0.55  66 1 3.00 Z
 MLPR PR HH1 00   A  3.9  76 149 ES? 1  22.93  2.87  2.87    0     0 0.10  J   mr         
 CRPR PR HHZ 00   A  5.8 328 137 EPU 1  21.86  1.80  1.82    0 -0.02 0.10  J   mr 0.55  50 1 2.76 Z
 CRPR PR HH1 00   A  5.8 328 137 ES? 1  23.20  3.14  3.24    0  -0.1 0.10  J   mr         
 ISPR PR HNZ 00   A 13.9  13 112 EPU 1  23.13  3.07  3.06    0  0.01 0.10  J   mr         
 ISPR PR HN1 00   A 13.9  13 112 ES? 1  25.49  5.43  5.45    0 -0.02 0.10  J   mr         
 SNG1 PR HNZ --   A 15.4  19 110 EPD 1  23.45  3.39  3.31    0  0.08 0.10  J   mr         
 SNG1 PR HNE --   A 15.4  19 110 ES? 1  26.21  6.15  5.89    0  0.26 0.10  J   mr         
 CBR1 PR HNZ --   A 15.7 333 109 EPD 1  23.32  3.26  3.37    0 -0.11 0.10  J   mr         
 CBR1 PR HNE --   A 15.7 333 109 ES? 1  26.03  5.97  6.00    0 -0.03 0.10  J   mr         
 HRM1 PR HNZ --   A 20.3 346 104 EPU 1  24.09  4.03  4.18    0 -0.15 0.10  J   mr         
 GBPR PR HHZ 00   A 21.1  85  57 EPD 1  24.27  4.21  4.31    0  -0.1 0.10  J   mr 0.87  61 1 3.02 Z
 GBPR PR HH1 00   A 21.1  85  57 ES? 1  27.84  7.78  7.67    0  0.11 0.10  J   mr         
 MY10 PR HNZ --   A 28.4 347  57 EPD 1  25.60  5.54  5.44    0   0.1 0.10  J   mr         
 UUPR PR HHZ 00   A 49.4  49  57 EPU 1  28.75  8.69  8.70    0 -0.01 0.10  J   mr 0.55  56 1 3.09 Z
 UUPR PR HH1 00   A 49.4  49  57 ES? 1  35.37 15.31 15.49    0 -0.18 0.10  J   mr         
 CELP PR HHZ 00   A 53.9  76  57 EPD 1  29.87  9.81  9.41    0   0.4 0.00  J   mr 0.55  51 1 3.01 Z
 CELP PR HH1 00   A 53.9  76  57 ES? 2  36.83 16.77 16.75    0  0.02 0.04  J   mr         
 AOPR PR HHZ 00   A 54.3  38  57 EPU 1  29.63  9.57  9.46    0  0.11 0.10  J   mr 0.55  49 1 2.97 Z
 AOPR PR HH1 00   A 54.3  38  57 ES? 1  36.74 16.68 16.84    0 -0.16 0.10  J   mr         
 AGPR PR HHZ 00   A 55.5 356  57 EPU 1  29.76  9.70  9.66    0  0.04 0.10  J   mr 0.55  38 1 2.74 Z
 AGPR PR HH1 00   A 55.5 356  57 ES? 1  37.19 17.13 17.19    0 -0.06 0.10  J   mr         
  IDE PR EHZ --   A 62.3 318  57 EPD 1  30.68 10.62 10.59    0  0.03 0.10  J   mr 0.58  38 1 2.72 Z
  IDE PR EHN --   A 62.3 318  57 ES? 1  39.06 19.00 18.85    0  0.15 0.10  J   mr         
 EMPR PR HHZ 00   A 80.6  45  50 EPU 1  34.35 14.29 13.39    0   0.9 0.00  J   mr 0.55  44 1 2.90 Z
 EMPR PR HH2 00   A 80.6  45  50 ES? 1  44.88 24.82 23.83    0  0.99 0.00  J   mr         
 ECPR PR HHZ 00   A 84.6  62  44 EPU 1  34.68 14.62 13.92    0   0.7 0.00  J   mr 0.55  54 1 3.09 Z
 ECPR PR HH1 00   A 84.6  62  44 ES? 1  45.47 25.41 24.78    0  0.63 0.00  J   mr         
 HUMP PR HHZ 00   A130.3  81  44 EP? 3  42.79 22.73 19.78    0  2.95 0.00  J   mr 0.55     
 HUMP PR HH1 00   A130.3  81  44 ES? 3  59.10 39.04 35.21    0  3.83 0.00  J   mr     

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