QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

4 km NNW of Jobos, Puerto Rico

· 9.7 km deep · released about 35 lb of TNT

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10 km30 km60 km120 km N Guayama Municipio 4 kmSalinas Municipio 10 kmCayey Municipio 13 kmArroyo Municipio 14 kmAibonito Municipio 18 kmPatillas Municipio 20 kmCidra Municipio 20 kmSanta Isabel Municipio 23 kmCoamo Municipio 23 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 2.0 (md)
Depth
9.7 km below the surface
Felt
no reports yet
Nearest
Guayama Municipio, 4 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 669 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 35 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 440,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 310,000× the energy of this one
  3. Around the size people start to feel M 3.0 28× the energy of this one
  4. This earthquake M 2.0 about 35 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 17.9908, -66.1738. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guayama Municipio, PR 4 km (3 mi) WNW of here earthquakes near Guayama Municipio
Salinas Municipio, PR 10 km (6 mi) ENE of here earthquakes near Salinas Municipio
Cayey Municipio, PR 13 km (8 mi) S of here earthquakes near Cayey Municipio
Arroyo Municipio, PR 14 km (9 mi) W of here earthquakes near Arroyo Municipio
Aibonito Municipio, PR 18 km (11 mi) SSE of here earthquakes near Aibonito Municipio
Patillas Municipio, PR 20 km (12 mi) W of here earthquakes near Patillas Municipio

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

Aftershocks so far

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

  1. 2.5 9 km SE of Emajagua, Puerto Rico
  2. 2.4 5 km SSW of Las Piedras, Puerto Rico
  3. 2.4 3 km SSW of Playita Cortada, Puerto Rico
  4. 2.1 22 km S of Lamboglia, Puerto Rico
  5. 2.2 9 km S of Emajagua, Puerto Rico
  6. 2.1 0 km N of Potala Pastillo, Puerto Rico
  7. 1.6 2 km SSE of Lamboglia, Puerto Rico
  8. 2.4 0 km SW of Santa Isabel, Puerto Rico
  9. 2.4 0 km NW of Santa Isabel, Puerto Rico
  10. 2.1 4 km WNW of Olimpo, Puerto Rico
  11. 2.4 3 km SSW of Playita Cortada, Puerto Rico
  12. 2.8 8 km SSE of Ponce, Puerto Rico
  13. 2.3 1 km WSW of Vázquez, Puerto Rico
  14. 3.1 1 km S of Toa Alta, Puerto Rico
  15. 2.1 7 km SSE of Ponce, 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 6,900 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.