3.4

M3.4 Earthquake 67 km SSE of Boca de Yuma, Dominican Republic — February 18, 2021

2021-02-18 21:12:19 UTC (2021-02-18) · approx. 4:12 PM UTC-5 local

MagnitudeM3.4(md)
Time21:12 UTC≈ 4:12 PM UTC-5
Depth24.0 kmshallow crustal
Coordinates17.808°, -68.394°
Felt by1DYFI response
Status✓ Reviewed by USGS

On February 18, 2021 at 21:12 UTC, a magnitude 3.4 shallow crustal earthquake struck 67 km SSE of Boca de Yuma, Dominican Republic, at a depth of 24.0 km and coordinates 17.8081°, -68.3936°.

Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 17.81°, -68.39°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M3.4 earthquake near 67 km SSE of Boca de Yuma, Dominican Republic

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
3.4 md
Depth
24.0 km
shallow crustal
Location
17.8081°N
-68.3936°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
pr2021049014
Event Type
earthquake
Status
✓ Reviewed
Significance
178
Stations Used
23
Azimuthal Gap
232.0°
Min Station Distance
0.706°
RMS Residual
0.47 sec
Last Updated
2021-04-23 21:04:56 UTC

Common Questions

How strong was the magnitude 3.4 earthquake near Boca de Yuma, Dominican Republic?

The magnitude 3.4 earthquake that struck 67 km SSE of Boca de Yuma, Dominican Republic on February 18, 2021 at 21:12 UTC had a depth of 24.0 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.4 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: pr2021049014). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, February 18, 2021). M3.4 Earthquake 67 km SSE of Boca de Yuma, Dominican Republic — February 18, 2021. Retrieved April 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/pr2021049014/