QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Mona Passage

Yes. A magnitude 3.0 earthquake was recorded in Mona Passage, at 5:15 am AST on 15 June 2018 (09:15 UTC), 7.0 km deep.

· 7.0 km deep · released about 890 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 107 kmAguadilla Municipio 109 kmRincón Municipio 110 kmAguada Municipio 112 kmIsabela 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 3.0 (md)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 107 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2987 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 35 km (22 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 890 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 380,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 17,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 890 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 19.0403, -67.9880. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mayagüez Municipio, PR 107 km (66 mi) S earthquakes near Mayagüez Municipio
Aguadilla Municipio, PR 109 km (67 mi) SE earthquakes near Aguadilla Municipio
Rincón Municipio, PR 110 km (68 mi) SE earthquakes near Rincón Municipio
Aguada Municipio, PR 112 km (70 mi) SE earthquakes near Aguada Municipio
Isabela Municipio, PR 120 km (74 mi) ESE earthquakes near Isabela Municipio
Moca Municipio, PR 121 km (75 mi) SE earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 2.4 90 km NNE of Punta Cana, Dominican Republic
  2. 3.3 58 km ENE of Punta Cana, Dominican Republic
  3. 3.2 57 km NE of Punta Cana, Dominican Republic
  4. 3.0 86 km NW of San Antonio, Puerto Rico
  5. 3.3 103 km NNE of Punta Cana, Dominican Republic
  6. 2.2 43 km N of Punta Cana, Dominican Republic
  7. 3.3 105 km NE of Punta Cana, Dominican Republic
  8. 2.5 60 km ENE of Punta Cana, Dominican Republic
  9. 3.0 75 km NW of San Antonio, Puerto Rico
  10. 2.5 99 km NNW of San Antonio, Puerto Rico
  11. 2.8 68 km NNE of Otra Banda, Dominican Republic
  12. 3.0 81 km NE of Punta Cana, Dominican Republic
  13. 3.2 28 km NNE of Punta Cana, Dominican Republic
  14. 2.8 56 km NNE of Otra Banda, Dominican Republic
  15. 3.1 57 km E of Punta Cana, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.