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 07, 2026 04:48:01 UTC August 07, 2026 00:48:01 Hora Local |
| Region: | South Region of Puerto Rico |
| Distances: |
4.99 Km Southwest of Guánica,PR 12.37 Km East-Southeast of Lajas,PR 32.54 Km South-Southeast of Mayagüez,PR |
| Magnitude: | 3.56 Md |
| Location: | Latitude: 17.9575 Longitude: -66.9438 |
| Depth: | 10 Km |
| Tsunami Warning Level: | No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands |
| Issued Date & Time | 2026-08-07 07:30:36 |
| ID: | 20260807044801 |
Epicentral Map
| BULLETIN 1 Seismic Event/Tsunami |
|
|---|---|
| DATE: | August 07, 2026 |
| LOCAL TIME: | 00:48:01 |
| LATITUDE: | 17.9575 N |
| LONGITUDE: | 66.9438 W |
| LOCATION: |
5 Km Southwest of Guánica,PR
32.5 Km South-Southeast of Mayagüez,PR |
| DEPTH: | 10 Km |
| MAGNITUDE: | 3.56 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 | 2026-08-07 07:30:44 |
|
The Puerto Rico Seismic Network (PRSN) received information that this
minor earthquake was reported as
felt in the Central 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. |
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Technical Information
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG FMAG PMAG INT
2026-08-07 0448 1.17 17 57.45 66 56.63 10.85 0.15 0.39 0.48 3.56 3.56D 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
48 48 7.1 PR1 178 15 21 29 14 42 Q PPX 0.00 0.00 19.00 0.09 D
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
3.56 19.00 0.09 Z 3.56 19.00 0.09 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 7.1 74 140 IPU 3.61 2.44 2.38 0.00 0.06 1.71 0.303 0.58 73 3.09 Z
GBPR PR HH2 A 7.1 74 140 ES 1 5.59 4.42 4.24 0.00 0.18 0.85S 0.274
MLPR PR HHZ A 10.7 278 126 EP- 1 3.84 2.67 2.78 0.00 -0.11 0.85 0.095
MLPR PR HH2 A 10.7 278 126 ES 1 5.97 4.80 4.95 0.00 -0.15 0.85S 0.199
CRPR PR HHZ A 18.4 288 107 IPU 4.82 3.65 3.84 0.00 -0.19 1.71 0.318 0.55 79 3.25 Z
CRPR PR HH1 A 18.4 288 107 ES 1 7.78 6.61 6.84 0.00 -0.23 0.85S 0.139
LSP PR HHZ A 28.5 329 99 EP+ 1 6.68 5.51 5.35 0.00 0.16 0.85 0.047 0.58 99 3.50 Z
LSP PR HH1 A 28.5 329 99 ES 1 10.18 9.01 9.52 0.00 -0.51* 0.00S 0.000
PRSN PR HHZ A 35.8 324 96 IPU 7.67 6.50 6.47 0.00 0.03 1.71 0.195 0.55 89 3.47 Z
PRSN PR HH2 A 35.8 324 96 ES 1 13.07 11.90 11.52 0.00 0.38 0.52S 0.053
OBIP PR HHZ A 37.0 75 96 IPU 7.68 6.51 6.65 0.00 -0.14 1.71 0.136 0.44 96 3.64 Z
OBIP PR HH2 A 37.0 75 96 ES 1 12.75 11.58 11.84 0.00 -0.26 0.85S 0.076
UUPR PR HHZ A 40.4 35 95 EP- 1 8.45 7.28 7.17 0.00 0.11 0.85 0.036 0.55 103 3.63 Z
UUPR PR HH2 A 40.4 35 95 ES 1 13.73 12.56 12.76 0.00 -0.20 0.85S 0.184
CELP PR HHZ A 40.7 71 95 IPU 8.29 7.12 7.23 0.00 -0.11 1.71 0.125 0.55 96 3.56 Z
CELP PR HH1 A 40.7 71 95 ES 1 13.95 12.78 12.87 0.00 -0.09 0.85S 0.079
ICMP PR HHZ A 44.9 100 94 IPU 9.13 7.96 7.86 0.00 0.10 1.71 0.319 0.55 92 3.53 Z
ICMP PR HH1 A 44.9 100 94 ES 1 15.40 14.23 13.99 0.00 0.24 0.85S 0.120
AOPR PR HHZ A 47.5 24 94 IPU 9.47 8.30 8.27 0.00 0.03 1.71 0.167 0.55 95 3.56 Z
AOPR PR HH2 A 47.5 24 94 ES 1 15.77 14.60 14.72 0.00 -0.12 0.85S 0.209
CVPR PR HNZ A 50.6 68 94 EP+ 1 9.91 8.74 8.73 0.00 0.01 0.85 0.030 0.00 73 2.47XD
CVPR PR HN1 A 50.6 68 94 ES 1 16.60 15.43 15.54 0.00 -0.11 0.85S 0.082
AGPR PR HHZ A 59.2 343 66 IPU 11.37 10.20 9.96 0.00 0.24 1.64 0.292 0.55 83 3.45 Z
AGPR PR HH2 A 59.2 343 66 ES 1 18.67 17.50 17.73 0.00 -0.23 0.82S 0.182
EMPR PR HHZ A 72.3 37 66 EP+ 1 13.88 12.71 11.81 0.00 0.90* 0.00 0.000 0.55 99 3.63 Z
EMPR PR HH2 A 72.3 37 66 ES 1 23.19 22.02 21.02 0.00 1.00* 0.00S 0.000
ECPR PR HHZ A 73.3 56 66 EP- 1 13.26 12.09 11.96 0.00 0.13 0.56 0.029 0.55 110 3.72 Z
ECPR PR HH1 A 73.3 56 66 ES 1 22.23 21.06 21.29 0.00 -0.23 0.56S 0.063
ASPR PR HHZ A 75.5 83 66 IPU 13.46 12.29 12.27 0.00 0.02 1.02 0.149 0.00 91 2.70 Z
ASPR PR HH2 A 75.5 83 66 ES 1 22.77 21.60 21.84 0.00 -0.24 0.51S 0.064
IGPR PR HHZ A 88.7 89 55 EP+ 1 15.47 14.30 13.94 0.00 0.36 0.15 0.005 0.55 102 3.67 Z
IGPR PR HH1 A 88.7 89 55 ES 1 25.93 24.76 24.81 0.00 -0.05 0.19S 0.014
PDPR PR HHZ A 97.8 85 55 EP+ 1 16.76 15.59 15.10 0.00 0.49 0.00 0.000 0.55 101 3.67 Z
PDPR PR HH1 A 97.8 85 55 ES 1 29.12 27.95 26.88 0.00 1.07* 0.00S 0.000
GCPR PR HHZ A 99.0 66 55 EP+ 1 16.98 15.81 15.25 0.00 0.56* 0.00 0.000 0.55 96 3.63 Z
GCPR PR HH1 A 99.0 66 55 ES 1 27.57 26.40 27.15 0.00 -0.74* 0.00S 0.000
FAPR PR HHZ A139.2 77 55 EP- 1 23.26 22.09 20.34 0.00 1.75* 0.00 0.000 0.55 85 3.56 Z
FAPR PR HH2 A139.2 77 55 ES 1 39.53 38.36 36.21 0.00 2.15* 0.00S 0.000
PCDR PR BHZ A164.1 293 55 EP+ 1 26.31 25.14 23.48 0.00 1.66* 0.00 0.000 0.55 113 3.85 Z
PCDR PR BHN A164.1 293 55 ES 1 45.46 44.29 41.79 0.00 2.50* 0.00S 0.000
CUPR PR HHZ A180.0 77 55 EP- 1 29.74 28.57 25.50 0.00 3.07* 0.00 0.000 0.55 101 3.76 Z
CUPR PR HH1 A180.0 77 55 ES 1 50.79 49.62 45.39 0.00 4.23* 0.00S 0.000
6 UNWEIGHTED STATIONS NOT PRINTED.
Event Maps
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 Intensity Map |
 Peak Ground Velocity |
 Peak Ground Acceleration |
 DYFI Map |
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