QuakeIndex

Earthquake · reviewed by a seismologist

M 4.2md

Mona Passage

· 140 km deep · released about 26 tons of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 65 kmRincón Municipio 119 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 4.2 (md)
Depth
140 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 65 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1211 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

How big was it?

This earthquake released about 26 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 6,500× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 290× the energy of this one
  3. Magna, Utah 2020 M 5.7 200× the energy of this one
  4. This earthquake M 4.2 about 26 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 55× more

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 18.4495, -68.3726. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 65 km (41 mi) NW of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 119 km (74 mi) W of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 3.7 36 km SSE of Boca de Yuma, Dominican Republic
  2. 3.8 29 km ESE of Boca de Yuma, Dominican Republic
  3. 3.6 23 km N of Punta Cana, Dominican Republic
  4. 3.4 Mona Passage
  5. 3.4 54 km SE of Punta Cana, Dominican Republic
  6. 3.9 44 km ESE of Punta Cana, Dominican Republic
  7. 3.6 31 km S of Boca de Yuma, Dominican Republic
  8. 3.5 22 km SSE of Punta Cana, Dominican Republic
  9. 3.7 32 km SE of Boca de Yuma, Dominican Republic
  10. 3.6 50 km ESE of Boca de Yuma, Dominican Republic
  11. 4.0 10 km SW of San Rafael del Yuma, Dominican Republic
  12. 3.4 12 km WSW of San Rafael del Yuma, Dominican Republic
  13. 3.8 28 km S of Boca de Yuma, Dominican Republic
  14. 3.9 5 km SW of San Rafael del Yuma, Dominican Republic
  15. 3.8 47 km ESE 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 5.3 on 2019-02-04 — it released about 51 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.