QuakeIndex

Earthquake · reviewed by a seismologist

M 3.8md

2 km ESE of Guaymate, Dominican Republic

Yes. A magnitude 3.8 earthquake was recorded 2 km ESE of Guaymate, Dominican Republic at 19:58 UTC on 2019-06-23, 125 km deep.

· 125 km deep · released about 6.6 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 3.8 (md)
Depth
125 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 126 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2618 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 it was probably too small to be felt, even directly above it. 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 6.6 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 26,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,100× the energy of this one
  3. Magna, Utah 2020 M 5.7 810× the energy of this one
  4. This earthquake M 3.8 about 6.6 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 14× 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 — about 18 times the energy of this one.

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 18.5796, -68.9611. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mayagüez Municipio, PR 126 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

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

  1. 2.7 16 km ESE of La Romana, Dominican Republic
  2. 2.9 6 km SSW of Salvaleón de Higüey, Dominican Republic
  3. 2.9 30 km N of Otra Banda, Dominican Republic
  4. 3.4 20 km SE of La Romana, Dominican Republic
  5. 2.9 19 km E of Santa Cruz de El Seibo, Dominican Republic
  6. 2.9 11 km W of Salvaleón de Higüey, Dominican Republic
  7. 2.8 9 km NNE of La Romana, Dominican Republic
  8. 2.8 18 km NE of Otra Banda, Dominican Republic
  9. 2.9 11 km WSW of Boca de Yuma, Dominican Republic
  10. 1.9 15 km S of La Romana, Dominican Republic
  11. 3.3 21 km SSW of San Rafael del Yuma, Dominican Republic
  12. 2.9 10 km W of San Rafael del Yuma, Dominican Republic
  13. 2.9 Mona Passage
  14. 2.3 4 km SE of Salvaleón de Higüey, Dominican Republic
  15. 2.2 10 km SW of Guaymate, 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.