QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7Md

134 km NNE of Vieques, Puerto Rico

· 67 km deep · released about 340 lb of TNT

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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 (Md)
Depth
67 km below the surface
Felt
no reports yet
Nearest
Toa Baja Municipio, 151 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3538 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 19.5314, -65.3089. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Toa Baja Municipio, PR 151 km (94 mi) NE of here earthquakes near Toa Baja Municipio
Dorado Municipio, PR 154 km (96 mi) NE of here earthquakes near Dorado Municipio
Vega Baja Municipio, PR 166 km (103 mi) NE of here earthquakes near Vega Baja Municipio

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

Aftershocks so far

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

  1. 3.3 105 km N of Charlotte Amalie, U.S. Virgin Islands
  2. 3.2 96 km NNW of Charlotte Amalie, U.S. Virgin Islands
  3. 3.1 104 km N of Charlotte Amalie, U.S. Virgin Islands
  4. 3.4 122 km N of Charlotte Amalie, U.S. Virgin Islands
  5. 3.3 123 km N of Charlotte Amalie, U.S. Virgin Islands
  6. 2.8 117 km N of Charlotte Amalie, U.S. Virgin Islands
  7. 3.1 98 km NNE of Vieques, Puerto Rico
  8. 3.5 134 km N of Charlotte Amalie, U.S. Virgin Islands
  9. 3.4 130 km N of Charlotte Amalie, U.S. Virgin Islands
  10. 3.4 138 km NNW of Charlotte Amalie, U.S. Virgin Islands
  11. 3.4 102 km N of Culebra, Puerto Rico
  12. 3.4 122 km N of Charlotte Amalie, U.S. Virgin Islands
  13. 3.2 125 km N of Charlotte Amalie, U.S. Virgin Islands
  14. 3.4 120 km N of Charlotte Amalie, U.S. Virgin Islands
  15. 3.4 148 km N of Charlotte Amalie, U.S. Virgin Islands

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 2016-09-04 — 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.