QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

6 km NE of Hormigueros, Puerto Rico

· 22 km deep · released about 230 lb of TNT

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10 km30 km60 km120 km N Hormigueros Municipio 6 kmSan Germán Municipio 8 kmLas Marías Municipio 12 kmAñasco Municipio 14 kmMaricao Municipio 15 kmSabana Grande Municipio 17 kmSan Sebastián Municipio 21 kmLajas Municipio 22 kmCabo Rojo 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
Magnitude
M 2.6 (md)
Depth
22 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 6 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 426 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 230 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 65,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 46,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.1× the energy of this one
  4. This earthquake M 2.6 about 230 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 18.1732, -67.0778. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 6 km (4 mi) NE of here earthquakes near Hormigueros Municipio
San Germán Municipio, PR 8 km (5 mi) NNW of here earthquakes near San Germán Municipio
Las Marías Municipio, PR 12 km (8 mi) WSW of here earthquakes near Las Marías Municipio
Añasco Municipio, PR 14 km (9 mi) SSE of here earthquakes near Añasco Municipio
Maricao Municipio, PR 15 km (9 mi) W of here earthquakes near Maricao Municipio
Sabana Grande Municipio, PR 17 km (11 mi) NW of here earthquakes near Sabana Grande Municipio

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

Aftershocks so far

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

  1. 2.0 2 km NNW of Guayanilla, Puerto Rico
  2. 2.7 11 km SSE of Maria Antonia, Puerto Rico
  3. 2.4 2 km SW of Guánica, Puerto Rico
  4. 2.3 6 km SSE of Maria Antonia, Puerto Rico
  5. 2.0 1 km W of Indios, Puerto Rico
  6. 2.0 6 km ENE of Utuado, Puerto Rico
  7. 2.1 5 km SSE of Maria Antonia, Puerto Rico
  8. 1.8 6 km SSE of Maria Antonia, Puerto Rico
  9. 2.2 10 km SSE of Guánica, Puerto Rico
  10. 1.9 6 km SSE of Maria Antonia, Puerto Rico
  11. 2.3 2 km SSE of Yauco, Puerto Rico
  12. 2.8 1 km S of Espino, Puerto Rico
  13. 2.4 0 km W of Palomas, Puerto Rico
  14. 1.8 3 km S of Indios, Puerto Rico
  15. 2.3 1 km SSE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 6.4 on 2020-01-07 — it released about 520,000 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.