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 Rio Grande, PR |
| Date: |
April 04, 2026 10:08:33 UTC April 04, 2026 06:08:33 Hora Local |
| Region: | Sombrero Seismic Zone |
| Distances: |
80.69 Km Northwest of Anegada,BVI 96.42 Km North-Northwest of Road Town, Tortola,BVI 164.11 Km Northeast of San Juan,PR |
| Magnitude: | 3.45 Md |
| Location: | Latitude: 19.2648 Longitude: -64.8518 |
| Depth: | 26 Km |
| Tsunami Warning Level: | No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands |
| Issued Date & Time | 2026-04-04 11:35:34 |
| ID: | 20260404100831 |
Epicentral Map
| BULLETIN 1 Seismic Event/Tsunami |
|
|---|---|
| DATE: | April 04, 2026 |
| LOCAL TIME: | 06:08:33 |
| LATITUDE: | 19.2648 N |
| LONGITUDE: | 64.8518 W |
| LOCATION: |
80.7 Km Northwest of Anegada,BVI
164.1 Km Northeast of San Juan,PR |
| DEPTH: | 26 Km |
| MAGNITUDE: | 3.45 Md |
| ESTIMATED MAXIMUM INTENSITY: | II in Rio Grande, PR |
| TSUNAMI ALERT LEVEL: | No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands |
| DATE & ISSUED TIME | 2026-04-04 11:35:41 |
|
The Puerto Rico Seismic Network (PRSN) received information that this
minor earthquake was reported as
felt in RÃo Grande 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. |
|
|
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Technical Information
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG FMAG PMAG INT
2026-04-04 1008 33.00 19 15.89 64 51.11 26.93 0.44 2.12 27.36 3.45 3.45D 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
38 38 96.6 PR1 246 14 19 35 17 38 Q- PPW 0.00 0.00 17.00 0.16 D
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
3.45 17.00 0.16 Z 3.45 17.00 0.16 D
REGION= Sombrero Seismic Zone
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
TBVI PR HHZ A 96.6 165 95 IPU 47.21 14.21 14.34 0.00 -0.13 1.96 0.329 0.00 78 2.58 Z
TBVI PR HH1 A 96.6 165 95 ES 1 58.74 25.74 25.53 0.00 0.21 0.98S 0.233
VGBI PR HHZ A 98.0 151 95 EP+ 1 47.87 14.87 14.51 0.00 0.36 0.98 0.121 0.00 71 2.50 Z
VGBI PR HH1 A 98.0 151 95 ES 1 58.99 25.99 25.83 0.00 0.16 0.98S 0.245
STVI PR HHZ A101.6 187 95 EP+ 1 47.66 14.66 14.97 0.00 -0.31 0.98 0.045 0.55 71 3.36 Z
STVI PR HH2 A101.6 187 95 ES 1 59.40 26.40 26.65 0.00 -0.25 0.98S 0.217
CUPR PR HHZ A115.3 204 94 IPD 49.14 16.14 16.70 0.00 -0.56* 1.96 0.125 0.55 67 3.32 Z
CUPR PR HH1 A115.3 204 94 ES 1 61.19 28.19 29.73 0.00 -1.54* 0.00S 0.000
FAPR PR HHZ A143.7 217 93 EP+ 1 53.48 20.48 20.29 0.00 0.19 0.98 0.034
FAPR PR HH1 A143.7 217 93 ES 1 68.70 35.70 36.12 0.00 -0.42 0.98S 0.105
GCPR PR HHZ A167.5 232 92 EP- 1 55.99 22.99 23.30 0.00 -0.31 0.98 0.047 0.55 65 3.35 Z
GCPR PR HH1 A167.5 232 92 ES 1 75.16 42.16 41.47 0.00 0.69* 0.98S 0.111
CDVI PR HHZ A167.7 176 92 EP- 1 57.91 24.91 23.32 0.00 1.59* 0.00 0.000 0.55 82 3.56 Z
CDVI PR HH1 A167.7 176 92 ES 1 75.05 42.05 41.51 0.00 0.54* 0.98S 0.667
PDPR PR HHZ A185.2 223 92 EP- 1 58.52 25.52 25.53 0.00 -0.01 0.98 0.058 0.55 68 3.41 Z
PDPR PR HH2 A185.2 223 92 ES 1 77.59 44.59 45.44 0.00 -0.85* 0.98S 0.101
ECPR PR HHZ A190.6 237 92 EP- 1 59.29 26.29 26.22 0.00 0.07 0.98 0.056 0.55 69 3.43 Z
ECPR PR HH2 A190.6 237 92 ES 1 80.09 47.09 46.67 0.00 0.42 0.98S 0.102
IGPR PR HHZ A195.5 223 92 EP- 1 59.93 26.93 26.84 0.00 0.09 0.98 0.068 0.55 70 3.45 Z
IGPR PR HH1 A195.5 223 92 ES 1 80.69 47.69 47.78 0.00 -0.09 0.98S 0.116
ASPR PR HHZ A200.0 228 92 EP+ 1 60.39 27.39 27.41 0.00 -0.02 0.98 0.057 0.00 65 2.53 Z
ASPR PR HH1 A200.0 228 92 ES 1 81.77 48.77 48.79 0.00 -0.02 0.98S 0.083
AOPR PR HHZ A224.8 244 92 EP- 1 63.63 30.63 30.55 0.00 0.08 0.98 0.076 0.55 93 3.74 Z
AOPR PR HH1 A224.8 244 92 ES 1 86.63 53.63 54.38 0.00 -0.75* 0.98S 0.119
CELP PR HHZ A224.9 235 92 EP- 1 63.48 30.48 30.56 0.00 -0.08 0.98 0.060 0.55 88 3.69 Z
CELP PR HH1 A224.9 235 92 ES 1 88.23 55.23 54.40 0.00 0.83* 0.98S 0.068
UUPR PR HHZ A226.6 241 91 EP- 1 63.56 30.56 30.78 0.00 -0.22 0.98 0.066 0.55 99 3.80 Z
UUPR PR HH1 A226.6 241 91 ES 1 88.71 55.71 54.79 0.00 0.92* 0.98S 0.087
GBPR PR HHZ A257.2 237 91 EP+ 1 68.22 35.22 34.66 0.00 0.56* 0.98 0.070 0.58 84 3.66 Z
GBPR PR HH1 A257.2 237 91 ES 1 94.40 61.40 61.69 0.00 -0.29 0.98S 0.070
LSP PR HHZ A264.7 244 91 EP- 1 68.81 35.81 35.61 0.00 0.20 0.98 0.076 0.58 71 3.52 Z
LSP PR HH1 A264.7 244 91 ES 1 96.99 63.99 63.39 0.00 0.60* 0.98S 0.082
MLPR PR HHZ A272.2 239 91 EP- 1 69.62 36.62 36.56 0.00 0.06 0.98 0.073 0.55 76 3.61 Z
MLPR PR HH1 A272.2 239 91 ES 1 97.53 64.53 65.08 0.00 -0.55* 0.98S 0.069
CRPR PR HHZ A276.0 241 91 EP+ 1 71.38 38.38 37.04 0.00 1.34* 0.16 0.001 0.55 92 3.79 Z
CRPR PR HH1 A276.0 241 91 ES 1 98.06 65.06 65.93 0.00 -0.87* 0.98S 0.068
HMDR DR BHZ A480.2 265 90 EP- 1 95.92 62.92 62.96 0.00 -0.04 0.61 0.073
HMDR DR BHN A480.2 265 90 ES 1 143.28110.28112.07 0.00 -1.79* 0.00S 0.000
Event Maps
 Spectral Acceleration |
 Intensity Map |
 Peak Ground Velocity |
 Peak Ground Acceleration |
 DYFI Map |
Google Map for this Event |