QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

4 km WNW of Palomas, Puerto Rico

· 21 km deep · released about 350 lb of TNT

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10 km30 km60 km120 km N Naranjito Municipio 6 kmBarranquitas Municipio 6 kmCorozal Municipio 6 kmComerío Municipio 9 kmToa Alta Municipio 13 kmAibonito Municipio 14 kmMorovis Municipio 15 kmOrocovis Municipio 15 kmCidra Municipio 17 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
21 km below the surface
Felt
no reports yet
Nearest
Naranjito Municipio, 6 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2057 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 350 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 43,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 31,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.7× the energy of this one
  4. This earthquake M 2.7 about 350 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 18.2548, -66.2960. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Naranjito Municipio, PR 6 km (4 mi) SW of here earthquakes near Naranjito Municipio
Barranquitas Municipio, PR 6 km (4 mi) NNE of here earthquakes near Barranquitas Municipio
Corozal Municipio, PR 6 km (4 mi) SSE of here earthquakes near Corozal Municipio
Comerío Municipio, PR 9 km (5 mi) WNW of here earthquakes near Comerío Municipio
Toa Alta Municipio, PR 13 km (8 mi) SSW of here earthquakes near Toa Alta Municipio
Aibonito Municipio, PR 14 km (9 mi) NNW of here earthquakes near Aibonito Municipio

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

Aftershocks so far

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

  1. 2.5 1 km NW of Jauca, Puerto Rico
  2. 2.3 3 km S of Tallaboa Alta, Puerto Rico
  3. 2.4 2 km S of Jauca, Puerto Rico
  4. 2.6 5 km SSW of Potala Pastillo, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.