QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

102 km WSW of Pole Ojea, Puerto Rico

· 35 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 58 kmCabo Rojo Municipio 104 kmLajas Municipio 117 kmHormigueros Municipio 117 kmRincón Municipio 120 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 2.7 (ml)
Depth
35 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 58 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2269 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 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 17.5971, -68.0701. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 58 km (36 mi) SSW of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 104 km (65 mi) WSW of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 117 km (73 mi) WSW of here earthquakes near Lajas Municipio
Hormigueros Municipio, PR 117 km (73 mi) WSW of here earthquakes near Hormigueros Municipio
Rincón Municipio, PR 120 km (74 mi) SW of here earthquakes near Rincón Municipio
San Germán Municipio, PR 123 km (77 mi) WSW of here earthquakes near San Germán Municipio

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

Aftershocks so far

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

  1. 3.3 64 km SE of Boca de Yuma, Dominican Republic
  2. 3.5 78 km SW of Pole Ojea, Puerto Rico
  3. 2.9 85 km SW of Pole Ojea, Puerto Rico
  4. 3.1 86 km SW of Pole Ojea, Puerto Rico
  5. 3.1 87 km SW of Pole Ojea, Puerto Rico
  6. 3.0 85 km SW of Pole Ojea, Puerto Rico
  7. 3.1 78 km SE of Boca de Yuma, Dominican Republic
  8. 3.3 60 km SSE of Boca de Yuma, Dominican Republic
  9. 3.4 96 km SW of Pole Ojea, Puerto Rico
  10. 3.3 94 km SW of Pole Ojea, Puerto Rico
  11. 3.3 80 km W of Pole Ojea, Puerto Rico
  12. 3.2 61 km WSW of Pole Ojea, Puerto Rico
  13. 3.5 86 km SSE of Boca de Yuma, Dominican Republic
  14. 3.6 77 km SE of Punta Cana, Dominican Republic
  15. 3.7 57 km SE of Boca de Yuma, Dominican Republic

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 4.3 on 2017-07-18 — it released about 250 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.