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 Moca, PR |
| Date: |
December 28, 2025 04:59:06 UTC December 28, 2025 00:59:06 Hora Local |
| Region: | Mona Passage |
| Distances: |
32.3 Km West of Mona Island,PR 72.6 Km Southeast of Higüey,DR 124.14 Km West of Mayagüez,PR |
| Magnitude: | 4.26 Md |
| Location: | Latitude: 18.0925 Longitude: -68.2255 |
| Depth: | 77 Km |
| Tsunami Warning Level: | No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands |
| Issued Date & Time | 2025-12-30 13:47:51 |
| ID: | 20251228045906 |
Epicentral Map
| BULLETIN 2 Seismic Event/Tsunami |
|
|---|---|
| DATE: | December 28, 2025 |
| LOCAL TIME: | 00:59:06 |
| LATITUDE: | 18.0925 N |
| LONGITUDE: | 68.2255 W |
| LOCATION: |
32.3 Km West of Mona Island,PR
124.1 Km West of Mayagüez,PR |
| DEPTH: | 77 Km |
| MAGNITUDE: | 4.26 Md |
| ESTIMATED MAXIMUM INTENSITY: | IV in Moca, PR |
| TSUNAMI ALERT LEVEL: | No Warning, Advisory or Watch is in effect for Puerto Rico and the Virgin Islands |
| DATE & ISSUED TIME | 2025-12-30 13:48:02 |
|
The Puerto Rico Seismic Network (PRSN) received information that this
light earthquake was reported as
felt in the Western 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 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. |
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Technical Information
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH RMS ERH ERZ XMAG FMAG PMAG INT
2025-12-28 0459 6.39 18 5.55 68 13.53 77.91 0.32 2.03 1.52 4.26 4.26D 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
59 59 49.5 PR1 207 9 30 40 17 55 Q PPE 0.00 0.00 19.00 0.06 D
XMAG2-N.XMG2-XMMAD-T-S FMAG2-N.FMG2-FMMAD-T-S PREF.MAG-N.PMAG-PRMAD-T
4.26 19.00 0.06 Z 4.26 19.00 0.06 D
REGION= Mona Passage
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
PCDR PR BHZ A 49.5 341 145 IPD 18.81 12.42 12.58 0.00 -0.16 2.14 0.268 0.55 176 4.23 Z
PCDR PR BHE A 49.5 341 145 ES 1 27.96 21.57 22.39 0.00 -0.82* 0.97S 0.315
HIDR DR BHZ A 75.7 317 133 IPD 20.80 14.41 14.75 0.00 -0.34 2.14 0.295
HIDR DR BHN A 75.7 317 133 ES 1 31.50 25.11 26.25 0.00 -1.14* 0.00S 0.000
PRSN PR HHZ A115.2 82 120 EP+ 1 25.43 19.04 18.76 0.00 0.28 1.07 0.025 0.55 158 4.21 Z
PRSN PR HH1 A115.2 82 120 ES 1 40.14 33.75 33.39 0.00 0.36 1.07S 0.115
CRPR PR HHZ A118.5 94 120 IPD 25.70 19.31 19.12 0.00 0.19 2.14 0.226 0.55 167 4.26 Z
CRPR PR HH2 A118.5 94 120 ES 1 40.70 34.31 34.03 0.00 0.28 1.07S 0.141
AGPR PR HHZ A124.9 70 118 IPU 26.24 19.85 19.82 0.00 0.03 2.14 0.174 0.55 152 4.18 Z
AGPR PR HH2 A124.9 70 118 ES 1 41.69 35.30 35.28 0.00 0.02 1.07S 0.212
MLPR PR HHZ A125.8 96 118 EP- 1 26.47 20.08 19.92 0.00 0.16 1.07 0.064 0.55 157 4.21 Z
MLPR PR HH2 A125.8 96 118 ES 1 41.69 35.30 35.46 0.00 -0.16 1.07S 0.140
GBPR PR HHZ A143.1 95 115 EP- 1 28.48 22.09 21.88 0.00 0.21 1.07 0.057 0.58 180 4.33 Z
GBPR PR HH2 A143.1 95 115 ES 1 45.68 39.29 38.95 0.00 0.34 1.07S 0.097
HMDR DR BHZ A144.3 303 115 EP+ 1 28.86 22.47 22.01 0.00 0.46 1.07 0.120
HMDR DR BHN A144.3 303 115 ES 1 45.43 39.04 39.18 0.00 -0.14 1.07S 0.158
AOPR PR HHZ A158.2 79 113 EP+ 1 30.16 23.77 23.61 0.00 0.16 1.07 0.045 0.55 167 4.30 Z
AOPR PR HH1 A158.2 79 113 ES 1 48.64 42.25 42.03 0.00 0.22 1.07S 0.129
UUPR PR HHZ A160.3 83 112 EP+ 1 30.73 24.34 23.86 0.00 0.48 1.07 0.040 0.55 149 4.20 Z
UUPR PR HH1 A160.3 83 112 ES 1 48.27 41.88 42.47 0.00 -0.59* 1.07S 0.092
SMDR PR BHZ A167.0 323 111 EP+ 1 31.02 24.63 24.64 0.00 -0.01 1.07 0.144
SMDR PR BHN A167.0 323 111 ES 1 50.85 44.46 43.86 0.00 0.60* 1.07S 0.334
CELP PR HHZ A174.3 90 110 EP+ 1 31.78 25.39 25.51 0.00 -0.12 1.07 0.048 0.55 181 4.39 Z
CELP PR HH2 A174.3 90 110 ES 1 51.83 45.44 45.41 0.00 0.03 1.07S 0.060
ICMP PR HHZ A181.4 96 110 EP+ 1 32.52 26.13 26.35 0.00 -0.22 1.06 0.064 0.55 166 4.32 Z
ICMP PR HH2 A181.4 96 110 ES 1 52.50 46.11 46.90 0.00 -0.79* 1.03S 0.064
CVPR PR HNZ A182.9 88 109 EP- 1 33.07 26.68 26.53 0.00 0.15 1.06 0.048
CVPR PR HN2 A182.9 88 109 ES 1 54.03 47.64 47.22 0.00 0.42 1.06S 0.065
SDD DR BHZ A183.5 284 109 EP- 2 35.06 28.67 26.60 0.00 2.07* 0.00 0.000
SDD DR BHE A183.5 284 109 ES 2 55.86 49.47 47.35 0.00 2.12* 0.00S 0.000
EMPR PR HHZ A184.3 76 109 EP+ 1 32.94 26.55 26.70 0.00 -0.15 1.06 0.068 0.55 142 4.18 Z
EMPR PR HH2 A184.3 76 109 ES 1 52.96 46.57 47.53 0.00 -0.96* 0.44S 0.033
ASPR PR HHZ A210.9 91 107 EP+ 1 35.91 29.52 29.89 0.00 -0.37 0.95 0.048
ASPR PR HH1 A210.9 91 107 ES 2 57.88 51.49 53.20 0.00 -1.71* 0.00S 0.000
SJG IU BHZ A219.7 89 106 EP+ 1 37.28 30.89 30.96 0.00 -0.07 0.89 0.043 0.73 180 4.32 Z
SJG IU BH1 A219.7 89 106 ES 1 61.29 54.90 55.11 0.00 -0.21 0.89S 0.048
IGPR PR HHZ A224.8 93 106 EP- 1 37.46 31.07 31.58 0.00 -0.51* 0.85 0.043 0.55 142 4.23 Z
IGPR PR HH1 A224.8 93 106 ES 1 61.60 55.21 56.21 0.00 -1.00* 0.19S 0.001
GCPR PR HHZ A227.9 83 105 EP+ 1 37.84 31.45 31.95 0.00 -0.50 0.83 0.043 0.55 152 4.29 Z
GCPR PR HH1 A227.9 83 105 ES 2 61.45 55.06 56.87 0.00 -1.81* 0.00S 0.000
PDPR PR HHZ A233.5 91 105 EP- 1 38.62 32.23 32.63 0.00 -0.40 0.78 0.036 0.55 138 4.21 Z
PDPR PR HH1 A233.5 91 105 ES 1 64.20 57.81 58.08 0.00 -0.27 0.78S 0.034
HUMP PR HHZ A251.7 88 104 EP+ 1 41.50 35.11 34.85 0.00 0.26 0.61 0.024 0.55 168 4.41 Z
HUMP PR HH1 A251.7 88 104 ES 1 67.38 60.99 62.03 0.00 -1.04* 0.06S 0.000
FAPR PR HHZ A272.2 86 103 EP- 1 43.27 36.88 37.38 0.00 -0.50 0.42 0.012 0.55 122 4.14 Z
FAPR PR HH2 A272.2 86 103 ES 2 71.15 64.76 66.54 0.00 -1.78* 0.00S 0.000
MTP PR HHZ A283.0 89 102 EP+ 1 45.49 39.10 38.71 0.00 0.39 0.32 0.007 0.55 152 4.36 Z
MTP PR HH2 A283.0 89 102 ES 2 74.17 67.78 68.90 0.00 -1.12* 0.00S 0.000
SC01 DR BHZ A302.5 300 101 EP+ 2 49.93 43.54 41.12 0.00 2.42* 0.00 0.000
SDDR CU BHZ A338.1 288 100 EP+ 3 55.74 49.35 45.55 0.00 3.80* 0.00 0.000
STVI PR HHZ A347.1 84 100 EP+ 1 52.23 45.84 46.67 0.00 -0.83* 0.00 0.000 0.55 165 4.50 Z
STVI PR HH1 A347.1 84 100 ES 3 86.00 79.61 83.07 0.00 -3.46* 0.00S 0.000
TBVI PR HHZ A383.2 83 99 EP+ 2 56.12 49.73 51.17 0.00 -1.44* 0.00 0.000
VGBI PR HHZ A406.9 83 98 EP+ 2 58.78 52.39 54.13 0.00 -1.74* 0.00 0.000
ACPR PR HHZ A647.0 198 95 EP+ 1 90.68 84.29 84.31 0.00 -0.02 0.00 0.000
4 UNWEIGHTED STATIONS NOT PRINTED.
Event Maps
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 Intensity Map |
 Peak Ground Velocity |
 Peak Ground Acceleration |
 DYFI Map |
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