QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

2 km N of Tierras Nuevas Poniente, Puerto Rico

· 109 km deep · released about 920 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Manatí Municipio 5 kmBarceloneta Municipio 8 kmVega Baja Municipio 10 kmFlorida Municipio 16 kmVega Alta Municipio 17 kmMorovis Municipio 20 kmArecibo Municipio 21 kmCiales Municipio 22 kmDorado Municipio 24 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 3.0 (md)
Depth
109 km below the surface
Felt
no reports yet
Nearest
Manatí Municipio, 5 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 509 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 920 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 370,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 920 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 18.4873, -66.4850. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Manatí Municipio, PR 5 km (3 mi) N of here earthquakes near Manatí Municipio
Barceloneta Municipio, PR 8 km (5 mi) ENE of here earthquakes near Barceloneta Municipio
Vega Baja Municipio, PR 10 km (6 mi) WNW of here earthquakes near Vega Baja Municipio
Florida Municipio, PR 16 km (10 mi) NNE of here earthquakes near Florida Municipio
Vega Alta Municipio, PR 17 km (10 mi) WNW of here earthquakes near Vega Alta Municipio
Morovis Municipio, PR 20 km (12 mi) NNW of here earthquakes near Morovis 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. 1.6 1 km WNW of Adjuntas, Puerto Rico
  2. 2.1 2 km N of Santa Clara, Puerto Rico
  3. 3.1 40 km N of Brenas, Puerto Rico
  4. 2.6 31 km N of Brenas, Puerto Rico
  5. 2.2 3 km SW of Adjuntas, Puerto Rico
  6. 2.3 3 km WNW of Orocovis, Puerto Rico
  7. 3.5 9 km NNW of San Juan, Puerto Rico
  8. 2.6 3 km WNW of Orocovis, Puerto Rico
  9. 2.0 6 km ESE of Adjuntas, Puerto Rico
  10. 3.2 2 km ESE of Sabana Hoyos, Puerto Rico
  11. 2.9 2 km NNW of Carrizales, Puerto Rico
  12. 2.3 8 km E of Jayuya, Puerto Rico
  13. 2.7 22 km NNE of Carrizales, Puerto Rico
  14. 3.0 26 km N of Garrochales, Puerto Rico
  15. 3.2 8 km NE of Dorado, 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 4.4 on 2018-12-09 — it released about 130 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.