Earthquake · reviewed by a seismologist
M 2.4md
117 km NNE of Vieques, Puerto Rico
Yes. A magnitude 2.4 earthquake was recorded 117 km NNE of Vieques, Puerto Rico, at 3:20 am AST on 30 June 2019 (07:20 UTC), 83 km deep.
- When
- Magnitude
- M 2.4 (md)
- Depth
- 83 km below the surface
- Felt
- no reports yet
- Nearest
- Fajardo Municipio, 118 km S
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2615 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
- Magna, Utah 2020 M 5.7 86,000× the energy of this one
- Around the size people start to feel M 3.0 7.7× the energy of this one
- This earthquake M 2.4 about 120 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 since 2016 was M 4.9 on 2018-11-14 — about 5,400 times the energy of this one.
Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:
- 5.1 122 km NNE of Vieques, Puerto Rico · 19 km E of this epicentre
- 5.1 92 km N of Suárez, Puerto Rico · 32 km SW of this epicentre
- 5.0 73 km NNE of Vieques, Puerto Rico · 49 km S of this epicentre
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 19.4406, -65.4928. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fajardo Municipio, PR | 118 km (73 mi) | S | earthquakes near Fajardo Municipio |
| Loíza Municipio, PR | 120 km (75 mi) | SSW | earthquakes near Loíza Municipio |
| Luquillo Municipio, PR | 121 km (75 mi) | S | earthquakes near Luquillo Municipio |
| Río Grande Municipio, PR | 123 km (76 mi) | SSW | earthquakes near Río Grande Municipio |
| Carolina Municipio, PR | 126 km (79 mi) | SSW | earthquakes near Carolina Municipio |
| San Juan Municipio, PR | 128 km (80 mi) | SSW | earthquakes near San Juan Municipio |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
50 earthquakes have been recorded within 50 km since this one.
- 2.8 84 km NNE of Vieques, Puerto Rico
- 3.0 119 km N of Charlotte Amalie, U.S. Virgin Islands
- 2.7 98 km N of Culebra, Puerto Rico
- 2.7 91 km NNW of Charlotte Amalie, U.S. Virgin Islands
- 2.6 83 km N of Culebra, Puerto Rico
- 3.1 95 km NNE of Luquillo, Puerto Rico
- 2.7 94 km NNW of Charlotte Amalie, U.S. Virgin Islands
- 2.6 104 km N of Suárez, Puerto Rico
- 2.8 78 km NNE of Luquillo, Puerto Rico
- 2.9 86 km NNE of Vieques, Puerto Rico
- 2.8 80 km NNE of Vieques, Puerto Rico
- 2.4 81 km NNE of Vieques, Puerto Rico
- 2.9 117 km NNE of Vieques, Puerto Rico
- 2.2 80 km NNE of Vieques, Puerto Rico
- 3.1 109 km NNE of Vieques, Puerto Rico
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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.