US territory · live catalogue
Earthquakes in Puerto Rico
In the last 30 days, 80 earthquakes of magnitude 2.5 or greater were recorded in Puerto Rico; the largest was a magnitude 4.8 earthquake 5 km SW of Guánica, Puerto Rico on 18 Sep 2026.
Data: USGS · updated · sources and licences
- 24 hours
- 3
- all magnitudes
- 7 days
- 9
- M2.5+
- 30 days
- 80
- M2.5+
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Last 24 hours
| Mag | Location | Time (UTC) |
|---|---|---|
| 3.0md | 67 km NNW of Aguadilla, Puerto Rico | |
| 2.8md | Near Las Marías, Puerto Rico | |
| 1.9md | Near Guánica, Puerto Rico |
Earlier this week, magnitude 2.5 and above
| Mag | Location | Time (UTC) |
|---|---|---|
| 3.1md | 71 km N of Barceloneta, Puerto Rico | |
| 3.4md | 82 km NNE of Luquillo, Puerto Rico | |
| 2.7md | 7 km WSW of Añasco, Puerto Rico | |
| 3.1md | Near Eleanor Roosevelt, San Juan, Puerto Rico | |
| 2.9md | 47 km NNW of Aguadilla, Puerto Rico | |
| 3.0md | 35 km NNE of San Juan, Puerto Rico | |
| 2.5md | 5 km WSW of Guánica, Puerto Rico |
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Largest in the last 30 days
| Mag | Location | Time (UTC) |
|---|---|---|
| 4.8ml | 5 km SW of Guánica, Puerto Rico | |
| 3.9md | 20 km NW of Rincón, Puerto Rico | |
| 3.8md | 114 km N of Culebra, Puerto Rico | |
| 3.6md | 140 km NNE of Loíza, Puerto Rico | |
| 3.6md | 129 km NNE of Luquillo, Puerto Rico | |
| 3.5md | 139 km NNE of Luquillo, Puerto Rico | |
| 3.5md | 60 km N of Culebra, Puerto Rico | |
| 3.4md | 82 km NNE of Luquillo, Puerto Rico | |
| 3.4md | 50 km NW of Isabela, Puerto Rico | |
| 3.4md | Near Corozal, Puerto Rico |
Where they occurred
Largest since 1900
Magnitude 6 and above in Puerto Rico.
Loading the historical catalogue…
About earthquakes in Puerto Rico
Puerto Rico lies in a complex zone between the North American and Caribbean plates, bounded by the Puerto Rico Trench to the north, the Mona Passage to the west and the Anegada Passage to the east.
The 1918 San Fermín earthquake (about M7.1) in the Mona Passage caused a damaging tsunami along the west coast. In January 2020 a sequence off the southwest coast, with a main shock of M6.4, damaged homes and the Costa Sur power plant; aftershocks continued for years and still appear in the catalogue.
Local monitoring and information: Puerto Rico Seismic Network (University of Puerto Rico at Mayagüez).
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Questions
How many earthquakes happen in Puerto Rico?
In the last 30 days, 80 earthquakes of magnitude 2.5 or greater were recorded in Puerto Rico, 9 of them in the last 7 days. In the last 24 hours, 3 earthquakes of any magnitude were recorded. Most small earthquakes are not felt.
What was the largest recent earthquake in Puerto Rico?
The largest in the last 30 days was a magnitude 4.8 earthquake 5 km SW of Guánica, Puerto Rico on 18 Sep 2026, at a depth of 7 km.
What is the largest earthquake recorded in Puerto Rico since 1900?
According to the USGS catalogue, the largest was a magnitude 7.7 earthquake on 29 Jul 1943 (45 km N of San Antonio, Puerto Rico). Magnitudes of early 20th-century earthquakes are less certain than modern ones.
How deep are earthquakes in Puerto Rico?
85% of the magnitude 2.5+ earthquakes recorded in Puerto Rico in the last 30 days were shallower than 70 km. Shallow earthquakes generally cause stronger shaking at the surface than deep ones of the same magnitude.
Where can I get official earthquake information for Puerto Rico?
For official information, warnings and safety advice, follow Puerto Rico Seismic Network (University of Puerto Rico at Mayagüez) (https://redsismica.uprm.edu/) and your local civil protection authority. This site compiles agency reports and is not a warning service.
How are earthquakes assigned to Puerto Rico on this page?
An earthquake is listed in Puerto Rico when the nearest town to its epicentre, within 200 km, is in the territory. Earthquakes farther offshore are not included. Counts of magnitude 2.5 and above are comparable between states; smaller earthquakes depend on how dense the local seismic network is.
Can earthquakes be predicted?
No. Scientists can estimate how likely strong shaking is in a region over years or decades, but no method predicts the time, place and size of a specific earthquake. Aftershocks are expected after large earthquakes and become less frequent over time.