QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

2 km NE of Jayuya, Puerto Rico

· 41 km deep · released about 49 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jayuya Municipio 3 kmCiales Municipio 9 kmUtuado Municipio 14 kmFlorida Municipio 15 kmOrocovis Municipio 15 kmVillalba Municipio 16 kmMorovis Municipio 19 kmAdjuntas Municipio 20 kmArecibo 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 2.1 (md)
Depth
41 km below the surface
Felt
no reports yet
Nearest
Jayuya Municipio, 3 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 510 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 49 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 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 18.2378, -66.5777. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jayuya Municipio, PR 3 km (2 mi) NNE of here earthquakes near Jayuya Municipio
Ciales Municipio, PR 9 km (6 mi) SW of here earthquakes near Ciales Municipio
Utuado Municipio, PR 14 km (9 mi) ESE of here earthquakes near Utuado Municipio
Florida Municipio, PR 15 km (9 mi) S of here earthquakes near Florida Municipio
Orocovis Municipio, PR 15 km (9 mi) W of here earthquakes near Orocovis Municipio
Villalba Municipio, PR 16 km (10 mi) NW of here earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 2.4 5 km SSE of Adjuntas, Puerto Rico
  2. 2.3 5 km SE of Maria Antonia, Puerto Rico
  3. 2.2 8 km SE of Maria Antonia, Puerto Rico
  4. 2.5 1 km SE of Maria Antonia, Puerto Rico
  5. 2.2 2 km SSW of Indios, Puerto Rico
  6. 2.3 2 km SSE of Indios, Puerto Rico
  7. 2.3 1 km SE of Indios, Puerto Rico
  8. 2.5 3 km SW of Guánica, Puerto Rico
  9. 2.0 3 km SSE of Indios, Puerto Rico
  10. 3.6 1 km SSE of Galateo, Puerto Rico
  11. 2.8 5 km E of Naranjito, Puerto Rico
  12. 2.3 1 km S of Indios, Puerto Rico
  13. 1.8 0 km E of Indios, Puerto Rico
  14. 2.4 0 km NE of Indios, Puerto Rico
  15. 2.2 0 km SE of Indios, 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 6.4 on 2020-01-07 — it released about 2,500,000 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.