QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

8 km SSE of Jobos, Puerto Rico

· 14 km deep · released about 77 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guayama Municipio 9 kmArroyo Municipio 12 kmSalinas Municipio 17 kmPatillas Municipio 19 kmCayey Municipio 24 kmMaunabo Municipio 27 kmSanta Isabel Municipio 29 kmAibonito Municipio 31 kmCidra Municipio 32 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 2.3 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Guayama Municipio, 9 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 532 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 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 77 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 17.8903, -66.1222. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guayama Municipio, PR 9 km (6 mi) S of here earthquakes near Guayama Municipio
Arroyo Municipio, PR 12 km (8 mi) SW of here earthquakes near Arroyo Municipio
Salinas Municipio, PR 17 km (11 mi) ESE of here earthquakes near Salinas Municipio
Patillas Municipio, PR 19 km (12 mi) SW of here earthquakes near Patillas Municipio
Cayey Municipio, PR 24 km (15 mi) S of here earthquakes near Cayey Municipio
Maunabo Municipio, PR 27 km (17 mi) WSW of here earthquakes near Maunabo 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. 2.2 7 km SW of Capitanejo, Puerto Rico
  2. 3.2 9 km S of Santa Isabel, Puerto Rico
  3. 2.6 6 km WSW of Guaynabo, Puerto Rico
  4. 3.0 3 km N of Palomas, Puerto Rico
  5. 2.6 25 km S of Jobos, Puerto Rico
  6. 2.5 41 km SSE of Arroyo, Puerto Rico
  7. 3.0 13 km SSE of Ponce, Puerto Rico
  8. 2.6 9 km SSE of Ponce, Puerto Rico
  9. 2.0 2 km SSW of Las Ochenta, Puerto Rico
  10. 3.0 11 km SSE of Ponce, Puerto Rico
  11. 2.5 11 km SSE of Ponce, Puerto Rico
  12. 2.5 12 km SSE of Ponce, Puerto Rico
  13. 2.0 0 km ENE of Santa Isabel, Puerto Rico
  14. 2.3 3 km N of Playita Cortada, Puerto Rico
  15. 2.2 1 km ESE of Santa Isabel, 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 3,100 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.