QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

9 km NNW of Puerto Real, Puerto Rico

· 23 km deep · released about 220 lb of TNT

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10 km30 km60 km120 km N Hormigueros Municipio 12 kmAñasco Municipio 18 kmCabo Rojo Municipio 18 kmRincón Municipio 21 kmSan Germán Municipio 21 kmAguada Municipio 25 kmLas Marías Municipio 28 kmLajas Municipio 28 kmMoca Municipio 30 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
23 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 12 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 390 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 220 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 68,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 48,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.3× the energy of this one
  4. This earthquake M 2.6 about 220 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 18.1537, -67.2315. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 12 km (8 mi) W of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 18 km (11 mi) SW of here earthquakes near Añasco Municipio
Cabo Rojo Municipio, PR 18 km (11 mi) NNW of here earthquakes near Cabo Rojo Municipio
Rincón Municipio, PR 21 km (13 mi) S of here earthquakes near Rincón Municipio
San Germán Municipio, PR 21 km (13 mi) WNW of here earthquakes near San Germán Municipio
Aguada Municipio, PR 25 km (16 mi) S of here earthquakes near Aguada Municipio

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

Aftershocks so far

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

  1. 2.2 2 km S of Indios, Puerto Rico
  2. 2.3 3 km S of Guánica, Puerto Rico
  3. 2.4 5 km SW of Guánica, Puerto Rico
  4. 2.8 2 km NE of San Germán, Puerto Rico
  5. 1.9 8 km WSW of Adjuntas, Puerto Rico
  6. 2.5 9 km SW of Guánica, Puerto Rico
  7. 2.3 4 km WSW of Guánica, Puerto Rico
  8. 2.3 3 km SW of Indios, Puerto Rico
  9. 2.7 1 km SW of Indios, Puerto Rico
  10. 2.3 5 km SSW of Indios, Puerto Rico
  11. 2.3 6 km SSE of La Parguera, Puerto Rico
  12. 2.7 6 km SSE of La Parguera, Puerto Rico
  13. 2.3 11 km SSE of Guánica, Puerto Rico
  14. 3.3 4 km WSW of Las Marías, Puerto Rico
  15. 2.3 1 km SW 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 540,000 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.