QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Guayama, PR

No earthquake was likely felt in Guayama in the 24 hours to 10:13 am AST (14:13 UTC). The last one was M 3.3, 35 km (22 mi) WSW, at 8:40 am AST on 1 November 2026, estimated intensity II (weak) in town. Every earthquake near Guayama

This page: a magnitude 2.5 earthquake was recorded 45 km (28 mi) south-southeast of Guayama, PR, at 11:30 pm AST on 11 June 2025 (03:30 UTC), 12 km deep.

USGS: 41 km SSE of Arroyo, Puerto Rico

89 km (56 mi) S of San Juan, PR

11:30 pm AST, Jun 11, 2025 · · 12 km deep · released about 200 lb of TNT

Every earthquake near Guayama Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Arroyo Municipio 42 kmMaunabo Municipio 44 kmPatillas Municipio 44 kmGuayama Municipio 46 kmYabucoa Municipio 51 kmSalinas Municipio 53 kmCayey Municipio 59 kmSan Lorenzo Municipio 60 kmSanta Isabel Municipio 61 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
11:30 pm AST on 11 June 2025 ()
Where
45 km (28 mi) south-southeast of Guayama, PR · earthquakes near Guayama
Magnitude
M 2.5 (md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Arroyo Municipio, 42 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 517 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 20 km (12 mi) from the epicentre. In Guayama, 45 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.5 about 200 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 4.6 on 2016-12-05 — about 1,200 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.3 68 km SSE of Emajagua, Puerto Rico · 33 km SE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 17.6092, -65.9420. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Arroyo Municipio, PR 42 km (26 mi) NNW earthquakes near Arroyo Municipio
Maunabo Municipio, PR 44 km (27 mi) N earthquakes near Maunabo Municipio
Patillas Municipio, PR 44 km (27 mi) N earthquakes near Patillas Municipio
Guayama Municipio, PR 46 km (28 mi) NNW earthquakes near Guayama Municipio
Yabucoa Municipio, PR 51 km (32 mi) N earthquakes near Yabucoa Municipio
Salinas Municipio, PR 53 km (33 mi) NW earthquakes near Salinas Municipio

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

26 earthquakes have been recorded within 50 km since this one.

  1. 3.0 30 km SSW of Esperanza, Puerto Rico
  2. 3.1 30 km SE of Emajagua, Puerto Rico
  3. 2.9 29 km SSW of Esperanza, Puerto Rico
  4. 2.7 5 km WSW of Central Aguirre, Puerto Rico
  5. 2.8 49 km S of Central Aguirre, Puerto Rico
  6. 3.1 65 km SSE of Arroyo, Puerto Rico
  7. 1.8 3 km NNE of Jobos, Puerto Rico
  8. 2.0 9 km S of Emajagua, Puerto Rico
  9. 2.7 1 km E of Palmas, Puerto Rico
  10. 2.8 13 km SSE of Emajagua, Puerto Rico
  11. 2.2 11 km SSE of Jobos, Puerto Rico
  12. 3.1 13 km S of Arroyo, Puerto Rico
  13. 2.0 4 km SSW of Arroyo, Puerto Rico
  14. 2.5 29 km S of Arroyo, Puerto Rico
  15. 2.4 19 km SE of El Negro, Puerto Rico

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.