QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

41 km SSE of Arroyo, Puerto Rico

· 12 km deep · released about 200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Arroyo Municipio 42 kmMaunabo Municipio 44 kmPatillas Municipio 44 kmGuayama Municipio 46 kmYabucoa Municipio 51 kmSalinas Municipio 53 kmCayey Municipio 59 kmSan Lorenzo Municipio 60 kmSanta Isabel Municipio 61 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
Arroyo Municipio, 42 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 472 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 17.6092, -65.9420. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Arroyo Municipio, PR 42 km (26 mi) SSE of here earthquakes near Arroyo Municipio
Maunabo Municipio, PR 44 km (27 mi) S of here earthquakes near Maunabo Municipio
Patillas Municipio, PR 44 km (27 mi) S of here earthquakes near Patillas Municipio
Guayama Municipio, PR 46 km (28 mi) SSE of here earthquakes near Guayama Municipio
Yabucoa Municipio, PR 51 km (32 mi) S of here earthquakes near Yabucoa Municipio
Salinas Municipio, PR 53 km (33 mi) SE of here earthquakes near Salinas Municipio

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

Aftershocks so far

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

  1. 3.0 30 km SSW of Esperanza, Puerto Rico
  2. 3.1 30 km SE of Emajagua, Puerto Rico
  3. 2.9 29 km SSW of Esperanza, Puerto Rico
  4. 2.7 5 km WSW of Central Aguirre, Puerto Rico
  5. 2.8 49 km S of Central Aguirre, Puerto Rico
  6. 3.1 65 km SSE of Arroyo, Puerto Rico
  7. 1.8 3 km NNE of Jobos, Puerto Rico
  8. 2.0 9 km S of Emajagua, Puerto Rico
  9. 2.7 1 km E of Palmas, Puerto Rico
  10. 2.8 13 km SSE of Emajagua, Puerto Rico
  11. 2.2 11 km SSE of Jobos, Puerto Rico
  12. 3.1 13 km S of Arroyo, Puerto Rico
  13. 2.0 4 km SSW of Arroyo, Puerto Rico
  14. 2.5 29 km S of Arroyo, Puerto Rico
  15. 2.4 19 km SE of El Negro, 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 4.6 on 2016-12-05 — it released about 1,200 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.