QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

5 km WSW of Ciales, Puerto Rico

· 12 km deep · released about 200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ciales Municipio 3 kmFlorida Municipio 7 kmMorovis Municipio 11 kmManatí Municipio 14 kmJayuya Municipio 14 kmOrocovis Municipio 14 kmBarceloneta Municipio 17 kmVega Baja Municipio 20 kmUtuado Municipio 20 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
12 km below the surface
Felt
no reports yet
Nearest
Ciales Municipio, 3 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 690 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 200 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 75,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 53,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.7× the energy of this one
  4. This earthquake M 2.5 about 200 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 18.3215, -66.5208. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ciales Municipio, PR 3 km (2 mi) N of here earthquakes near Ciales Municipio
Florida Municipio, PR 7 km (4 mi) SE of here earthquakes near Florida Municipio
Morovis Municipio, PR 11 km (7 mi) W of here earthquakes near Morovis Municipio
Manatí Municipio, PR 14 km (9 mi) SSW of here earthquakes near Manatí Municipio
Jayuya Municipio, PR 14 km (9 mi) NNE of here earthquakes near Jayuya Municipio
Orocovis Municipio, PR 14 km (9 mi) NW of here earthquakes near Orocovis Municipio

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

Aftershocks so far

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

  1. 2.6 17 km N of Hatillo, Puerto Rico
  2. 2.5 2 km ESE of Yauco, Puerto Rico
  3. 2.4 0 km ENE of Yauco, Puerto Rico
  4. 2.0 2 km S of Indios, Puerto Rico
  5. 2.6 2 km NE of Magas Arriba, Puerto Rico
  6. 2.2 2 km WSW of Potala Pastillo, Puerto Rico
  7. 2.8 16 km N of Tierras Nuevas Poniente, Puerto Rico
  8. 2.3 2 km WNW of Indios, Puerto Rico
  9. 2.9 9 km NNE of Brenas, Puerto Rico
  10. 2.7 2 km ENE of Tallaboa Alta, Puerto Rico
  11. 1.9 1 km SSW of Indios, Puerto Rico
  12. 2.0 0 km SSW of Magas Arriba, Puerto Rico
  13. 2.3 8 km SSW of Orocovis, Puerto Rico
  14. 2.6 5 km NNW of Arecibo, Puerto Rico
  15. 2.4 2 km W 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 5.6 on 2020-01-07 — it released about 38,000 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.