QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Mona Passage

· 18 km deep · released about 8.4 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 1.6 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 140 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2702 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 8.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.4 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 18.9800, -68.8201. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 140 km (87 mi) NW of here earthquakes near Mayagüez Municipio

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

Aftershocks so far

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

  1. 2.4 58 km NE of Miches, Dominican Republic
  2. 2.9 46 km NNE of Otra Banda, Dominican Republic
  3. 3.4 33 km ENE of Miches, Dominican Republic
  4. 2.3 4 km SE of Salvaleón de Higüey, Dominican Republic
  5. 2.7 16 km NE of Otra Banda, Dominican Republic
  6. 2.7 3 km NW of Salvaleón de Higüey, Dominican Republic
  7. 2.2 Mona Passage
  8. 3.4 20 km NE of Miches, Dominican Republic
  9. 2.7 13 km WSW of Salvaleón de Higüey, Dominican Republic
  10. 2.7 1 km SSE of Guaymate, Dominican Republic
  11. 2.6 2 km E of Guaymate, Dominican Republic
  12. 3.4 Dominican Republic region
  13. 4.7 4 km SSE of Guaymate, Dominican Republic
  14. 3.3 12 km WNW of Salvaleón de Higüey, Dominican Republic
  15. 2.7 2 km ENE of Salvaleón de Higüey, 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 4.8 on 2016-11-13 — it released about 57,000 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.