3.1
Earthquake Details: 43 km NW of San Antonio, Puerto Rico
Aug 23, 2026, 08:57:13
A magnitude 3.1 earthquake occurred near 43 km NW of San Antonio, Puerto Rico on Aug 23, 2026 at 08:57:13. The seismic event was recorded at a depth of 4.98 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth4.98 km
Significance147
Latitude18.7888
Longitude-67.3723
Event IDpr71529488
Magnitude3.1
Updated:Aug 23, 2026, 10:57:56 UTC
External Resources
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Time & depth
- Local time
- Aug 23, 2026, 04:57:13 AST
- UTC
- Aug 23, 2026, 08:57:13 UTC
4.98 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.7119 km N of Charlotte Amalie, U.S. Virgin IslandsBeforeM3.4104 km N of Charlotte Amalie, U.S. Virgin IslandsBeforeM3.4109 km N of Charlotte Amalie, U.S. Virgin IslandsBeforeM3.7130 km N of Charlotte Amalie, U.S. Virgin IslandsBeforeM3.783 km NE of Punta Cana, Dominican RepublicBeforeM3.4116 km N of Charlotte Amalie, U.S. Virgin IslandsBeforeM3.382 km NW of San Antonio, Puerto RicoBeforeM3.4120 km NNE of Vieques, Puerto RicoBeforeM3.491 km NE of Punta Cana, Dominican RepublicAfterM4.188 km NE of Punta Cana, Dominican RepublicAfterM4.136 km NE of Punta Cana, Dominican RepublicAfterM4.011 km W of San Rafael del Yuma, Dominican RepublicAfter
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Aug 23, 2026, 10:57 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.