QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Mona Passage

Yes. A magnitude 2.3 earthquake was recorded in Mona Passage at 05:13 UTC on 2018-08-07, 24 km deep.

· 24 km deep · released about 82 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 2.3 (md)
Depth
24 km below the surface
Felt
no reports yet
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2947 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 82 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 82 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 19.6488, -67.9408. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 2.9 106 km NE of Miches, Dominican Republic
  2. 3.1 99 km NE of Miches, Dominican Republic
  3. 3.1 87 km NNE of Punta Cana, Dominican Republic
  4. 3.3 93 km NNE of Punta Cana, Dominican Republic
  5. 3.1 85 km NNE of Punta Cana, Dominican Republic
  6. 2.6 95 km NNE of Punta Cana, Dominican Republic
  7. 3.2 111 km NNW of San Antonio, Puerto Rico
  8. 3.0 102 km NE of Punta Cana, Dominican Republic
  9. 3.1 122 km NNE of Punta Cana, Dominican Republic
  10. 3.3 110 km NNE of Punta Cana, Dominican Republic
  11. 3.2 Dominican Republic region
  12. 3.0 100 km NNE of Punta Cana, Dominican Republic
  13. 3.2 111 km NNE of Punta Cana, Dominican Republic
  14. 3.3 84 km NNE of Punta Cana, Dominican Republic
  15. 3.0 149 km NNE 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.