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: | II in Lajas, PR |
| Date: |
September 18, 2026 17:20:42 UTC September 18, 2026 13:20:42 Hora Local |
| Region: | South Region of Puerto Rico |
| Distances: |
5.93 Km West-Southeast of Guánica,PR 10.33 Km East-Southeast of Lajas,PR 30.8 Km South-Southeast of Mayagüez,PR |
| Magnitude: | 3.4 Ml |
| Location: | Latitude: 17.9658 Longitude: -66.9605 |
| Depth: | 6 Km |
| Tsunami Warning Level: | No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands |
| Issued Date & Time | 2026-09-18 13:47:43 |
| ID: | 20260918172040 |
Epicentral Map
| BULLETIN 1 Seismic Event/Tsunami |
|
|---|---|
| DATE: | September 18, 2026 |
| LOCAL TIME: | 13:20:42 |
| LATITUDE: | 17.9658 N |
| LONGITUDE: | 66.9605 W |
| LOCATION: |
5.9 Km West-Southeast of Guánica,PR
30.8 Km South-Southeast of Mayagüez,PR |
| DEPTH: | 6 Km |
| MAGNITUDE: | 3.4 Ml |
| ESTIMATED MAXIMUM INTENSITY: | II in Lajas, PR |
| TSUNAMI ALERT LEVEL: | No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands |
| DATE & ISSUED TIME | 2026-09-18 13:47:51 |
|
The Puerto Rico Seismic Network (PRSN) received information that this
minor earthquake was reported as
felt in Lajas with a maximum
intensity of II (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
2026-09-18 1720 42.44 17 57.95 66 57.63 6.48 0.16 0.69 0.45 II
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
34 34 8.7 PR1 173 18 17 24 10 34 Q PPM 0.00 0.00 0.00 0.00 D
REGION= Southern Puerto Rico
EB 3.4 ml
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 8.7 83 122 EP+ 1 44.63 2.19 2.12 0.00 0.07 0.92 0.194
GBPR PR HH1 A 8.7 83 122 ES 1 46.20 3.76 3.77 0.00 -0.01 0.92S 0.582
MLPR PR HHZ A 8.9 273 121 IPU 44.68 2.24 2.15 0.00 0.09 1.84 0.385
MLPR PR HH1 A 8.9 273 121 ES 1 46.17 3.73 3.83 0.00 -0.10 0.92S 0.168
CRPR PR HHZ A 16.4 286 106 IPU 45.79 3.35 3.42 0.00 -0.07 1.84 0.270
CRPR PR HH1 A 16.4 286 106 ES 1 48.18 5.74 6.09 0.00 -0.35 0.92S 0.126
LSP PR HHZ A 26.7 331 57 IPU 47.74 5.30 5.20 0.00 0.10 1.84 0.169
LSP PR HH1 A 26.7 331 57 ES 1 52.52 10.08 9.26 0.00 0.82* 0.00S 0.000
PRSN PR HHZ A 34.0 326 57 IPU 48.76 6.32 6.31 0.00 0.01 1.84 0.181
PRSN PR HH2 A 34.0 326 57 ES 1 53.33 10.89 11.23 0.00 -0.34 0.92S 0.152
OBIP PR HHZ A 38.5 77 57 EP+ 1 49.29 6.85 7.00 0.00 -0.15 0.92 0.064
OBIP PR HH1 A 38.5 77 57 ES 1 54.37 11.93 12.46 0.00 -0.53* 0.02S 0.000
UUPR PR HHZ A 40.7 38 57 IPD 49.68 7.24 7.34 0.00 -0.10 1.84 0.177
UUPR PR HH1 A 40.7 38 57 ES 1 54.67 12.23 13.07 0.00 -0.84* 0.00S 0.000
CELP PR HHZ A 42.1 73 57 IPD 49.77 7.33 7.57 0.00 -0.24 1.84 0.222
CELP PR HH1 A 42.1 73 57 ES 1 56.19 13.75 13.47 0.00 0.28 0.92S 0.099
ICMP PR HHZ A 46.8 100 57 EP+ 1 50.90 8.46 8.28 0.00 0.18 0.92 0.159
ICMP PR HH1 A 46.8 100 57 ES 1 57.47 15.03 14.74 0.00 0.29 0.92S 0.299
AOPR PR HHZ A 47.5 27 57 IPD 50.84 8.40 8.39 0.00 0.01 1.84 0.196
AOPR PR HH2 A 47.5 27 57 ES 1 56.15 13.71 14.93 0.00 -1.22* 0.00S 0.000
AGPR PR HHZ A 57.8 345 57 IPU 52.65 10.21 9.97 0.00 0.24 1.80 0.163
AGPR PR HH1 A 57.8 345 57 ES 1 60.08 17.64 17.75 0.00 -0.11 0.90S 0.185
ECPR PR HHZ A 74.3 58 50 IPD 54.69 12.25 12.45 0.00 -0.20 1.16 0.067
ECPR PR HH1 A 74.3 58 50 ES 1 64.61 22.17 22.16 0.00 0.01 0.58S 0.037
ASPR PR HHZ A 77.2 84 50 EP+ 1 54.97 12.53 12.85 0.00 -0.32 0.50 0.030
ASPR PR HH1 A 77.2 84 50 ES 1 64.94 22.50 22.87 0.00 -0.37 0.50S 0.052
IGPR PR HHZ A 90.4 89 44 EP+ 1 57.39 14.95 14.61 0.00 0.34 0.16 0.004
IGPR PR HH1 A 90.4 89 44 ES 1 68.68 26.24 26.01 0.00 0.23 0.16S 0.008
PDPR PR HHZ A 99.6 86 44 EP+ 1 58.72 16.28 15.76 0.00 0.52* 0.00 0.000
PDPR PR HH2 A 99.6 86 44 ES 1 72.19 29.75 28.05 0.00 1.70* 0.00S 0.000
GCPR PR HHZ A100.3 67 44 EP+ 1 58.30 15.86 15.86 0.00 0.00 0.02 0.000
GCPR PR HH1 A100.3 67 44 ES 1 66.30 23.86 28.23 0.00 -4.37* 0.00S 0.000
CUPR PR HHZ A181.6 77 44 EP+ 1 70.43 27.99 26.15 0.00 1.84* 0.00 0.000
CUPR PR HH1 A181.6 77 44 ES 1 92.99 50.55 46.55 0.00 4.00* 0.00S 0.000
Event Maps
 Spectral Acceleration |
 Intensity Map |
 Peak Ground Velocity |
 Peak Ground Acceleration |
 DYFI Map |
Google Map for this Event |