QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

9 km S of Indios, Puerto Rico

· 10 km deep · released about 170 lb of TNT

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10 km30 km60 km120 km N Guánica Municipio 11 kmGuayanilla Municipio 11 kmPeñuelas Municipio 17 kmYauco Municipio 20 kmSabana Grande Municipio 23 kmLajas Municipio 24 kmPonce Municipio 26 kmSan Germán Municipio 31 kmAdjuntas Municipio 31 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
Magnitude
M 2.5 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 11 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2369 days ago

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

How big was it?

This earthquake released about 170 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 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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.

Where

Epicentre 17.9074, -66.8291. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guánica Municipio, PR 11 km (7 mi) ESE of here earthquakes near Guánica Municipio
Guayanilla Municipio, PR 11 km (7 mi) SSW of here earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 17 km (11 mi) SW of here earthquakes near Peñuelas Municipio
Yauco Municipio, PR 20 km (12 mi) S of here earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 23 km (15 mi) SSE of here earthquakes near Sabana Grande Municipio
Lajas Municipio, PR 24 km (15 mi) ESE of here earthquakes near Lajas Municipio

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

Aftershocks so far

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

  1. 1.8 7 km SE of Maria Antonia, Puerto Rico
  2. 2.5 10 km SSE of Maria Antonia, Puerto Rico
  3. 2.5 9 km SE of Maria Antonia, Puerto Rico
  4. 2.7 20 km SSE of Maria Antonia, Puerto Rico
  5. 3.6 5 km S of Tallaboa, Puerto Rico
  6. 2.8 2 km ESE of Indios, Puerto Rico
  7. 2.7 3 km SSE of Guánica, Puerto Rico
  8. 2.7 17 km SSE of Guánica, Puerto Rico
  9. 2.8 4 km SE of Indios, Puerto Rico
  10. 3.3 5 km WSW of Fuig, Puerto Rico
  11. 3.5 5 km SSE of Guánica, Puerto Rico
  12. 2.2 16 km SSE of Guánica, Puerto Rico
  13. 2.2 3 km SSW of Indios, Puerto Rico
  14. 2.5 3 km SSW of Peñuelas, Puerto Rico
  15. 2.7 2 km SSW of Guánica, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 6.4 on 2020-01-07 — it released about 710,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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