QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7Md

1 km ESE of Ceiba, Puerto Rico

· 109 km deep · released about 340 lb of TNT

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10 km30 km60 km120 km N Vega Alta Municipio 1 kmVega Baja Municipio 6 kmDorado Municipio 9 kmToa Alta Municipio 13 kmToa Baja Municipio 15 kmCorozal Municipio 16 kmManatí Municipio 16 kmMorovis Municipio 16 kmNaranjito Municipio 19 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
109 km below the surface
Felt
no reports yet
Nearest
Vega Alta Municipio, 1 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3680 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 340 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 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 18.4430, -66.3377. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vega Alta Municipio, PR 1 km (0 mi) N of here earthquakes near Vega Alta Municipio
Vega Baja Municipio, PR 6 km (4 mi) ESE of here earthquakes near Vega Baja Municipio
Dorado Municipio, PR 9 km (5 mi) WSW of here earthquakes near Dorado Municipio
Toa Alta Municipio, PR 13 km (8 mi) NW of here earthquakes near Toa Alta Municipio
Toa Baja Municipio, PR 15 km (10 mi) W of here earthquakes near Toa Baja Municipio
Corozal Municipio, PR 16 km (10 mi) N of here earthquakes near Corozal Municipio

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

Aftershocks so far

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

  1. 2.4 2 km NE of Playita Cortada, Puerto Rico
  2. 2.0 2 km NE of Jagual, Puerto Rico
  3. 3.0 5 km ESE of Naranjito, Puerto Rico
  4. 2.5 6 km SE of G. L. Garcia, Puerto Rico
  5. 2.9 9 km NE of Arecibo, Puerto Rico
  6. 2.0 3 km SW of Caguas, Puerto Rico
  7. 2.6 16 km NNE of Carrizales, Puerto Rico
  8. 3.0 1 km SE of Vega Alta, Puerto Rico
  9. 2.5 3 km S of San Antonio, Puerto Rico
  10. 2.7 1 km SSE of Corozal, Puerto Rico
  11. 2.3 13 km N of Brenas, Puerto Rico
  12. 2.5 Puerto Rico region
  13. 2.5 4 km NNE of Coto Norte, Puerto Rico
  14. 2.7 4 km NNW of Trujillo Alto, Puerto Rico
  15. 1.9 4 km WSW of Campo Rico, 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

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