QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

35 km E of Miches, Dominican Republic

Yes. A magnitude 1.9 earthquake was recorded 35 km E of Miches, Dominican Republic at 11:54 UTC on 2018-03-17, 19 km deep.

· 19 km deep · released about 22 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 1.9 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 133 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3161 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause 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 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2016-11-13 — about 22,000 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 18.9901, -68.7106. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mayagüez Municipio, PR 133 km (83 mi) SE earthquakes near Mayagüez Municipio

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

Aftershocks so far

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

  1. 2.7 30 km NE of Otra Banda, Dominican Republic
  2. 2.7 66 km N of Punta Cana, Dominican Republic
  3. 2.2 43 km N of Punta Cana, Dominican Republic
  4. 3.4 9 km ENE of Santa Cruz de El Seibo, Dominican Republic
  5. 3.2 17 km E of Miches, Dominican Republic
  6. 2.8 68 km NNE of Otra Banda, Dominican Republic
  7. 4.3 9 km N of Otra Banda, Dominican Republic
  8. 3.2 28 km NNE of Punta Cana, Dominican Republic
  9. 2.8 56 km NNE of Otra Banda, Dominican Republic
  10. 3.0 20 km NNW of Punta Cana, Dominican Republic
  11. 3.2 46 km ENE of Miches, Dominican Republic
  12. 2.9 67 km ENE of Miches, Dominican Republic
  13. 2.8 42 km ENE of Miches, Dominican Republic
  14. 2.9 36 km NE of Otra Banda, Dominican Republic
  15. 3.1 59 km ENE of Miches, 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.