QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

56 km N of Tierras Nuevas Poniente, Puerto Rico

· 59 km deep · released about 46 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 57 kmVega Baja Municipio 57 kmManatí Municipio 58 kmDorado Municipio 59 kmVega Alta Municipio 60 kmToa Baja Municipio 63 kmArecibo Municipio 64 kmCataño Municipio 67 kmFlorida Municipio 68 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 2.1 (md)
Depth
59 km below the surface
Felt
no reports yet
Nearest
Barceloneta Municipio, 57 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2959 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 46 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 18.9686, -66.4541. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Barceloneta Municipio, PR 57 km (35 mi) N of here earthquakes near Barceloneta Municipio
Vega Baja Municipio, PR 57 km (36 mi) N of here earthquakes near Vega Baja Municipio
Manatí Municipio, PR 58 km (36 mi) N of here earthquakes near Manatí Municipio
Dorado Municipio, PR 59 km (36 mi) NNW of here earthquakes near Dorado Municipio
Vega Alta Municipio, PR 60 km (38 mi) NNW of here earthquakes near Vega Alta Municipio
Toa Baja Municipio, PR 63 km (39 mi) NNW 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

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

  1. 2.5 18 km NNE of Carrizales, Puerto Rico
  2. 2.8 64 km N of Arecibo, Puerto Rico
  3. 2.7 74 km N of Tierras Nuevas Poniente, Puerto Rico
  4. 2.4 69 km N of Tierras Nuevas Poniente, Puerto Rico
  5. 2.8 74 km N of Tierras Nuevas Poniente, Puerto Rico
  6. 2.7 Puerto Rico region
  7. 2.5 71 km N of Tierras Nuevas Poniente, Puerto Rico
  8. 2.5 70 km N of Tierras Nuevas Poniente, Puerto Rico
  9. 2.7 80 km N of Tierras Nuevas Poniente, Puerto Rico
  10. 2.8 41 km N of Carrizales, Puerto Rico
  11. 1.9 77 km N of Tierras Nuevas Poniente, Puerto Rico
  12. 2.6 40 km NNW of Brenas, Puerto Rico
  13. 1.6 12 km NNW of Brenas, Puerto Rico
  14. 2.6 41 km N of Tierras Nuevas Poniente, Puerto Rico
  15. 3.0 64 km N of San Juan, 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 4.8 on 2017-08-18 — it released about 10,000 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.