QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Guánica, PR

No earthquake was likely felt in Guánica in the 24 hours to 10:10 am AST (14:10 UTC). The last one was M 2.1, 13 km (8 mi) ENE, at 4:39 pm AST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Guánica

This page: a magnitude 2.1 earthquake was recorded in Guánica, PR, at 12:07 am AST on 13 September 2022 (04:07 UTC), 15 km deep.

USGS: Puerto Rico region

29 km (18 mi) W of Ponce, PR

12:07 am AST, Sep 13, 2022 · · 15 km deep · released about 49 lb of TNT

Every earthquake near Guánica Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 4 kmGuayanilla Municipio 11 kmYauco Municipio 14 kmSabana Grande Municipio 14 kmLajas Municipio 16 kmPeñuelas Municipio 19 kmSan Germán Municipio 22 kmMaricao Municipio 24 kmAdjuntas Municipio 28 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
12:07 am AST on 13 September 2022 ()
Where
in Guánica, PR · earthquakes near Guánica
Magnitude
M 2.1 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 4 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1520 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 10 km (6 mi) from the epicentre. 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.

Likely felt in: Yauco 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 49 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 in our catalogue was M 6.4 on 2020-01-07 — about 2,500,000 times the energy of this one.

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 17.9650, -66.8933. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guánica Municipio, PR 4 km (2 mi) WSW earthquakes near Guánica Municipio
Guayanilla Municipio, PR 11 km (7 mi) ENE earthquakes near Guayanilla Municipio
Yauco Municipio, PR 14 km (9 mi) NNE earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 14 km (9 mi) NNW earthquakes near Sabana Grande Municipio
Lajas Municipio, PR 16 km (10 mi) W earthquakes near Lajas Municipio
Peñuelas Municipio, PR 19 km (12 mi) ENE earthquakes near Peñuelas Municipio

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

Aftershocks so far

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

  1. 2.1 3 km S of La Parguera, Puerto Rico
  2. 2.5 0 km SSW of Guayanilla, Puerto Rico
  3. 2.6 7 km SE of Maria Antonia, Puerto Rico
  4. 2.6 5 km SW of Guánica, Puerto Rico
  5. 1.8 3 km SE of La Parguera, Puerto Rico
  6. 2.1 3 km E of Pole Ojea, Puerto Rico
  7. 2.3 7 km SE of Maria Antonia, Puerto Rico
  8. 2.0 Puerto Rico region
  9. 2.1 3 km WSW of Indios, Puerto Rico
  10. 1.8 1 km W of Guánica, Puerto Rico
  11. 2.1 4 km SE of Maria Antonia, Puerto Rico
  12. 2.1 Puerto Rico region
  13. 2.3 1 km N of Yauco, Puerto Rico
  14. 2.1 2 km SE of La Parguera, Puerto Rico
  15. 2.2 4 km SSW of Indios, 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.