QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

1 km W of Las Marías, Puerto Rico

· 16 km deep · released about 150 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Las Marías Municipio 4 kmSan Sebastián Municipio 10 kmMaricao Municipio 12 kmAñasco Municipio 14 kmLares Municipio 15 kmMoca Municipio 16 kmSan Germán Municipio 16 kmHormigueros Municipio 17 kmSabana Grande 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
16 km below the surface
Felt
no reports yet
Nearest
Las Marías Municipio, 4 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 570 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 150 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 99,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 70,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.2× the energy of this one
  4. This earthquake M 2.5 about 150 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 18.2530, -67.0070. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Las Marías Municipio, PR 4 km (3 mi) NW of here earthquakes near Las Marías Municipio
San Sebastián Municipio, PR 10 km (6 mi) SSW of here earthquakes near San Sebastián Municipio
Maricao Municipio, PR 12 km (7 mi) NW of here earthquakes near Maricao Municipio
Añasco Municipio, PR 14 km (8 mi) ESE of here earthquakes near Añasco Municipio
Lares Municipio, PR 15 km (9 mi) W of here earthquakes near Lares Municipio
Moca Municipio, PR 16 km (10 mi) SSE of here earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 2.5 0 km SSW of Indios, Puerto Rico
  2. 3.0 1 km SSE of Indios, Puerto Rico
  3. 2.4 0 km ENE of Indios, Puerto Rico
  4. 2.3 3 km SSE of Indios, Puerto Rico
  5. 2.4 2 km WNW of Indios, Puerto Rico
  6. 2.3 2 km SSE of Indios, Puerto Rico
  7. 2.2 0 km NNW of Indios, Puerto Rico
  8. 2.1 4 km SSE of Indios, Puerto Rico
  9. 2.7 1 km SE of Indios, Puerto Rico
  10. 3.2 4 km SSE of Indios, Puerto Rico
  11. 2.9 2 km SSE of Indios, Puerto Rico
  12. 2.3 3 km SSE of Indios, Puerto Rico
  13. 2.1 1 km SSE of Indios, Puerto Rico
  14. 2.2 0 km SSE of Indios, Puerto Rico
  15. 2.3 3 km SSE 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 790,000 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.