QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

1 km SSW of Bayamon, Puerto Rico

· 74 km deep · released about 190 lb of TNT

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10 km30 km60 km120 km N Cidra Municipio 5 kmCayey Municipio 8 kmCaguas Municipio 9 kmAguas Buenas Municipio 10 kmComerío Municipio 13 kmSan Lorenzo Municipio 15 kmAibonito Municipio 16 kmGurabo Municipio 19 kmNaranjito Municipio 20 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
74 km below the surface
Felt
no reports yet
Nearest
Cidra Municipio, 5 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2765 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 190 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 78,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 55,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.9× the energy of this one
  4. This earthquake M 2.5 about 190 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 18.1645, -66.1178. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cidra Municipio, PR 5 km (3 mi) ESE of here earthquakes near Cidra Municipio
Cayey Municipio, PR 8 km (5 mi) NNE of here earthquakes near Cayey Municipio
Caguas Municipio, PR 9 km (5 mi) SW of here earthquakes near Caguas Municipio
Aguas Buenas Municipio, PR 10 km (6 mi) S of here earthquakes near Aguas Buenas Municipio
Comerío Municipio, PR 13 km (8 mi) ESE of here earthquakes near Comerío Municipio
San Lorenzo Municipio, PR 15 km (9 mi) W of here earthquakes near San Lorenzo 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. 1.8 1 km ESE of Jobos, Puerto Rico
  2. 1.6 3 km ESE of La Plena, Puerto Rico
  3. 1.5 3 km ENE of La Plena, Puerto Rico
  4. 1.9 0 km NNE of Jobos, Puerto Rico
  5. 2.8 0 km SSE of Jobos, Puerto Rico
  6. 2.7 0 km S of Jobos, Puerto Rico
  7. 1.8 1 km WSW of Jauca, Puerto Rico
  8. 1.7 0 km NNW of Jobos, Puerto Rico
  9. 1.6 2 km E of Jobos, Puerto Rico
  10. 1.7 3 km SE of Jauca, Puerto Rico
  11. 1.7 8 km SSW of Arroyo, Puerto Rico
  12. 1.7 2 km N of Jobos, Puerto Rico
  13. 1.9 10 km SSE of Arroyo, Puerto Rico
  14. 1.6 1 km ENE of Jobos, Puerto Rico
  15. 1.7 1 km SSW of Jobos, 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 1,200 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.