QuakeIndex

Earthquake · reviewed by a seismologist

M 4.7mb

4 km SSE of Guaymate, Dominican Republic

Yes. A magnitude 4.7 earthquake was recorded 4 km SSE of Guaymate, Dominican Republic at 16:02 UTC on 2019-07-28, 144 km deep. 14 people have reported feeling it to USGS.

· 144 km deep · released about 170 tons 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 4.7 (mb)
Depth
144 km below the surface
Felt
14 reports · strongest reported intensity V
Nearest
Mayagüez Municipio, 125 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2588 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 68 km (42 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 170 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 1,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 45× the energy of this one
  3. Magna, Utah 2020 M 5.7 32× the energy of this one
  4. This earthquake M 4.7 about 170 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 350× 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2016-03-20.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 18.5533, -68.9601. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mayagüez Municipio, PR 125 km (78 mi) ESE earthquakes near Mayagüez Municipio

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

Aftershocks so far

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

  1. 3.6 16 km NNW of Otra Banda, Dominican Republic
  2. 4.4 25 km NNW of Otra Banda, Dominican Republic
  3. 2.8 6 km WNW of Otra Banda, Dominican Republic
  4. 3.3 25 km SSW of Boca de Yuma, Dominican Republic
  5. 3.1 13 km E of Guaymate, Dominican Republic
  6. 3.7 2 km NE of Salvaleón de Higüey, Dominican Republic
  7. 2.8 11 km W of La Romana, Dominican Republic
  8. 2.7 24 km N of Otra Banda, Dominican Republic
  9. 2.9 20 km SW of San Rafael del Yuma, Dominican Republic
  10. 4.4 5 km WSW of La Romana, Dominican Republic
  11. 2.9 8 km W of Guaymate, Dominican Republic
  12. 3.6 24 km SSE of La Romana, Dominican Republic
  13. 2.9 1 km S of Ramón Santana, Dominican Republic
  14. 2.5 35 km SW of Boca de Yuma, Dominican Republic
  15. 2.7 16 km ESE of La Romana, 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.