QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

2 km ESE of Vega Alta, Puerto Rico

· 108 km deep · released about 190 lb of TNT

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10 km30 km60 km120 km N Vega Alta Municipio 5 kmToa Alta Municipio 8 kmDorado Municipio 9 kmCorozal Municipio 11 kmVega Baja Municipio 11 kmToa Baja Municipio 14 kmNaranjito Municipio 14 kmMorovis Municipio 15 kmBayamón Municipio 16 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
108 km below the surface
Felt
no reports yet
Nearest
Vega Alta Municipio, 5 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2956 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 18.4011, -66.3073. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vega Alta Municipio, PR 5 km (3 mi) SE of here earthquakes near Vega Alta Municipio
Toa Alta Municipio, PR 8 km (5 mi) WNW of here earthquakes near Toa Alta Municipio
Dorado Municipio, PR 9 km (6 mi) SSW of here earthquakes near Dorado Municipio
Corozal Municipio, PR 11 km (7 mi) N of here earthquakes near Corozal Municipio
Vega Baja Municipio, PR 11 km (7 mi) ESE of here earthquakes near Vega Baja Municipio
Toa Baja Municipio, PR 14 km (8 mi) WSW of here earthquakes near Toa Baja Municipio

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

Aftershocks so far

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

  1. 2.3 6 km NW of Yaurel, Puerto Rico
  2. 3.1 4 km NNE of Bairoa, Puerto Rico
  3. 2.4 26 km N of San Juan, Puerto Rico
  4. 1.7 2 km SSE of Pájaros, Puerto Rico
  5. 2.8 40 km N of Dorado, Puerto Rico
  6. 2.4 8 km NNE of Dorado, Puerto Rico
  7. 2.4 4 km NNE of Guaynabo, Puerto Rico
  8. 1.9 1 km N of Las Ochenta, Puerto Rico
  9. 2.2 5 km ESE of G. L. Garcia, Puerto Rico
  10. 2.5 33 km N of Tierras Nuevas Poniente, Puerto Rico
  11. 2.2 17 km NNW of Garrochales, Puerto Rico
  12. 2.7 5 km ESE of San Juan, Puerto Rico
  13. 2.0 0 km NW of Playita Cortada, Puerto Rico
  14. 2.2 1 km ESE of Potala Pastillo, Puerto Rico
  15. 1.9 5 km N of Arecibo, 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.