QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

7 km NW of Sumidero, Puerto Rico

· 58 km deep · released about 390 lb of TNT

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10 km30 km60 km120 km N Aguas Buenas Municipio 5 kmComerío Municipio 6 kmNaranjito Municipio 9 kmBayamón Municipio 9 kmCidra Municipio 10 kmGuaynabo Municipio 11 kmToa Alta Municipio 13 kmCaguas Municipio 14 kmBarranquitas Municipio 16 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 2.7 (md)
Depth
58 km below the surface
Felt
no reports yet
Nearest
Aguas Buenas Municipio, 5 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3333 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 390 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 39,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 28,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 390 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 18.2645, -66.1748. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aguas Buenas Municipio, PR 5 km (3 mi) W of here earthquakes near Aguas Buenas Municipio
Comerío Municipio, PR 6 km (4 mi) NE of here earthquakes near Comerío Municipio
Naranjito Municipio, PR 9 km (5 mi) ESE of here earthquakes near Naranjito Municipio
Bayamón Municipio, PR 9 km (6 mi) S of here earthquakes near Bayamón Municipio
Cidra Municipio, PR 10 km (6 mi) N of here earthquakes near Cidra Municipio
Guaynabo Municipio, PR 11 km (7 mi) SW of here earthquakes near Guaynabo Municipio

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

Aftershocks so far

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

  1. 2.4 5 km SW of Orocovis, Puerto Rico
  2. 3.3 4 km NE of Brenas, Puerto Rico
  3. 2.3 2 km NNW of Potala Pastillo, Puerto Rico
  4. 2.7 2 km NW of Candelero Arriba, Puerto Rico
  5. 3.0 4 km SSE of Cayey, Puerto Rico
  6. 1.9 3 km NNW of Potala Pastillo, Puerto Rico
  7. 1.6 1 km E of Capitanejo, Puerto Rico
  8. 2.7 11 km S of Jauca, Puerto Rico
  9. 2.4 1 km SSW of Potala Pastillo, Puerto Rico
  10. 2.2 6 km SSE of Jauca, Puerto Rico
  11. 2.9 7 km S of Jauca, Puerto Rico
  12. 3.1 Puerto Rico region
  13. 3.3 12 km NNE of Tierras Nuevas Poniente, Puerto Rico
  14. 2.5 5 km E of Bayamon, Puerto Rico
  15. 3.1 1 km SW of Trujillo Alto, 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 4.6 on 2016-12-05 — it released about 620 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.