QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

3 km WSW of Sumidero, Puerto Rico

· 82 km deep · released about 180 lb of TNT

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10 km30 km60 km120 km N Cidra Municipio 4 kmAguas Buenas Municipio 6 kmComerío Municipio 7 kmCaguas Municipio 11 kmCayey Municipio 12 kmNaranjito Municipio 13 kmAibonito Municipio 15 kmBayamón Municipio 15 kmGuaynabo Municipio 15 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 (md)
Depth
82 km below the surface
Felt
no reports yet
Nearest
Cidra Municipio, 4 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2936 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 180 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 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 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 18.2113, -66.1563. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cidra Municipio, PR 4 km (3 mi) N of here earthquakes near Cidra Municipio
Aguas Buenas Municipio, PR 6 km (4 mi) SSW of here earthquakes near Aguas Buenas Municipio
Comerío Municipio, PR 7 km (4 mi) ESE of here earthquakes near Comerío Municipio
Caguas Municipio, PR 11 km (7 mi) W of here earthquakes near Caguas Municipio
Cayey Municipio, PR 12 km (7 mi) N of here earthquakes near Cayey Municipio
Naranjito Municipio, PR 13 km (8 mi) SE of here earthquakes near Naranjito Municipio

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

Aftershocks so far

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

  1. 1.6 9 km W of Orocovis, Puerto Rico
  2. 1.5 1 km SE of Santa Isabel, Puerto Rico
  3. 1.7 0 km WNW of Mariano Colón, Puerto Rico
  4. 2.2 3 km SSW of Pastos, Puerto Rico
  5. 2.1 9 km N of Villalba, Puerto Rico
  6. 1.7 3 km ENE of Pastos, Puerto Rico
  7. 2.1 3 km SSW of Salinas, Puerto Rico
  8. 1.7 2 km S of Jauca, Puerto Rico
  9. 2.2 2 km SE of Cidra, Puerto Rico
  10. 2.7 2 km E of Morovis, Puerto Rico
  11. 2.6 3 km NNW of Benitez, Puerto Rico
  12. 2.0 1 km WSW of Jauca, Puerto Rico
  13. 1.6 Puerto Rico region
  14. 1.6 2 km SE of Cayey, Puerto Rico
  15. 1.6 4 km WNW of Yaurel, 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 1,300 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.