QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

0 km N of Cidra, Puerto Rico

· 29 km deep · released about 130 lb of TNT

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10 km30 km60 km120 km N Cidra Municipio 1 kmComerío Municipio 8 kmAguas Buenas Municipio 9 kmCayey Municipio 9 kmCaguas Municipio 12 kmAibonito Municipio 12 kmNaranjito Municipio 15 kmBarranquitas Municipio 16 kmBayamón Municipio 18 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 2.4 (md)
Depth
29 km below the surface
Felt
no reports yet
Nearest
Cidra Municipio, 1 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2309 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 80,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.2× the energy of this one
  4. This earthquake M 2.4 about 130 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 18.1838, -66.1621. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cidra Municipio, PR 1 km (1 mi) N of here earthquakes near Cidra Municipio
Comerío Municipio, PR 8 km (5 mi) SE of here earthquakes near Comerío Municipio
Aguas Buenas Municipio, PR 9 km (5 mi) SSW of here earthquakes near Aguas Buenas Municipio
Cayey Municipio, PR 9 km (6 mi) N of here earthquakes near Cayey Municipio
Caguas Municipio, PR 12 km (8 mi) WSW of here earthquakes near Caguas Municipio
Aibonito Municipio, PR 12 km (8 mi) ENE of here earthquakes near Aibonito Municipio

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

Aftershocks so far

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

  1. 2.9 1 km SSE of Playita Cortada, Puerto Rico
  2. 2.9 1 km SSE of Playita Cortada, Puerto Rico
  3. 3.1 2 km SW of Potala Pastillo, Puerto Rico
  4. 3.1 3 km NNW of Loíza, Puerto Rico
  5. 2.8 3 km SSW of G. L. Garcia, Puerto Rico
  6. 2.6 2 km ESE of Potala Pastillo, Puerto Rico
  7. 3.5 6 km NW of Trujillo Alto, Puerto Rico
  8. 2.7 7 km SSE of Potala Pastillo, Puerto Rico
  9. 3.1 3 km ESE of Jauca, Puerto Rico
  10. 2.9 2 km ESE of Jauca, 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 1,800 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.