QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near San Germán, PR

No earthquake was likely felt in San Germán in the 24 hours to 12:52 pm AST (16:52 UTC). The last one was M 2.1, 12 km (7 mi) SW, at 11:57 pm AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near San Germán

This page: a magnitude 2.5 earthquake was recorded 3 km (2 mi) north of San Germán, PR, at 3:12 pm AST on 15 January 2025 (19:12 UTC), 27 km deep.

USGS: 3 km N of San Germán, Puerto Rico

15 km (9 mi) SE of Mayagüez, PR · 108 km (67 mi) WSW of San Juan, PR

3:12 pm AST, Jan 15, 2025 · · 27 km deep · released about 200 lb of TNT

Every earthquake near San Germán Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Germán Municipio 0 kmHormigueros Municipio 9 kmSabana Grande Municipio 10 kmMaricao Municipio 13 kmLajas Municipio 14 kmLas Marías Municipio 15 kmYauco Municipio 19 kmCabo Rojo Municipio 19 kmGuánica Municipio 22 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
3:12 pm AST on 15 January 2025 ()
Where
3 km (2 mi) north of San Germán, PR · earthquakes near San Germán
Magnitude
M 2.5 (md)
Depth
27 km below the surface
Felt
no reports yet
Nearest
San Germán Municipio, 0 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 665 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 it was probably too small to be felt, even directly above it. In San Germán, 3 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.

Earthquakes near other towns within 30 km: Sabana Eneas, Lajas, Monte Grande, Palmarejo, Sabana Grande, Hormigueros.

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 6.4 on 2020-01-07 — about 600,000 times the energy of this one.

Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:

  1. 6.3 6 km WNW of Aguadilla, Puerto Rico · 41 km NNW of this epicentre
  2. 5.8 4 km E of Moca, Puerto Rico · 33 km N of this epicentre
  3. 5.2 19 km SW of Stella, Puerto Rico · 36 km WNW of this epicentre
  4. 5.1 21 km SW of Stella, Puerto Rico · 36 km WNW 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 18.1087, -67.0395. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Germán Municipio, PR 0 km (0 mi) ESE earthquakes near San Germán Municipio
Hormigueros Municipio, PR 9 km (5 mi) WNW earthquakes near Hormigueros Municipio
Sabana Grande Municipio, PR 10 km (6 mi) ESE earthquakes near Sabana Grande Municipio
Maricao Municipio, PR 13 km (8 mi) ENE earthquakes near Maricao Municipio
Lajas Municipio, PR 14 km (9 mi) S earthquakes near Lajas Municipio
Las Marías Municipio, PR 15 km (9 mi) NNE earthquakes near Las Marías Municipio

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

Aftershocks so far

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

  1. 2.1 6 km WSW of Fuig, Puerto Rico
  2. 2.8 25 km SW of Stella, Puerto Rico
  3. 2.8 8 km SSE of Maria Antonia, Puerto Rico
  4. 3.0 2 km SE of Indios, Puerto Rico
  5. 2.5 1 km SE of Magas Arriba, Puerto Rico
  6. 2.3 6 km WSW of Fuig, Puerto Rico
  7. 2.0 2 km SW of Indios, Puerto Rico
  8. 2.4 2 km S of Palomas, Puerto Rico
  9. 2.5 3 km SW of Guánica, Puerto Rico
  10. 2.7 5 km SSE of Indios, Puerto Rico
  11. 2.0 1 km N of Guayanilla, Puerto Rico
  12. 1.9 5 km ESE of La Parguera, Puerto Rico
  13. 2.2 6 km W of Fuig, Puerto Rico
  14. 2.7 2 km E of Magas Arriba, Puerto Rico
  15. 2.2 7 km SE of Maria Antonia, 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.